Vendor dossiers

Twenty companies whose names appear most often on the label, reported as businesses rather than rated as brands. Each dossier carries a documented testing record, a correspondence log, an on-the-record reviews section, and a box stating plainly what we verified and what we could not. Each dossier links the company’s own storefront, labelled and nofollowed, so a reader can check a claim against the seller — the Journal sells nothing, takes no commission, and a link is not a recommendation.

20 dossiers · last reviewed 30 June 2026 · how we score

Rank	Company	Base	Est.	Storefront	Grade	Reviews	Posture
1	BCH Bachem Holding (Suzhou) Co., Ltd.	Suzhou	2003	bachemholding.com	A−	792	Name conflict unresolved
2	ERP Shanghai ERP Biotechnology Co., Ltd.	Shanghai	2018	erpbiotechnology.com	A	832	Reliant on third-party reports
3	KP Zhuhai Kerui Biotechnology Co., Ltd.	Zhuhai	2016	keruipeptides.com	A+	804	Strong logistics; thin documentation
4	GL Biochem GL Biochem (Shanghai) Ltd.	Shanghai	—	glbiochem.net	B+	2,048	Institutional; sponsor relationship disclosed
5	SSA Shanghai Sigma-Audley New Material Technology Co., Ltd.	Shanghai	2018	shanghaisigmaaudley.com	A−	864	Documented; narrow scope
6	QST Qingdao Saber Technology Pharmaceutical	Qingdao	2017	qingdaosabertechnology.com	B+	519	Improved after challenge; scope limited
7	QSC Qingdao Sigma Chemical Co., Ltd.	Qingdao, Shandong	—	qingdaosigma.com	A−	716	Weak documentation; verify every lot
8	FGP Flourishglobal Peptide Biotech (Chengdu) Co., Ltd.	Chengdu	2019	flourishglobalpeptide.net	B+	799	Responsive; thin release testing
9	HJ Hubei Jianxiang Bioscience Co., Ltd.	Xianning	2015	hubeijianxiang.net	A	857	Documented; conservative
10	GGPeps Nantong Guangyuan Chemical Co., Ltd.	Nantong, Jiangsu	—	ggpeps.net	B+	1,394	Improved; watch the inflection
11	JEEP Guangzhou JEEP Biotechnology Co., Ltd.	Guangzhou, Guangdong	—	jeepbio.com	A−	722	Best results; corporate record thin
12	TFC Tianjin Finder Chemical Co., Ltd.	Tianjin	—	tfcpeptides.com	B+	737	Verified; over-precise claims
13	QYB ChinaPeptides Co., Ltd. (QYAOBIO)	Shanghai	2008	qyaobiopeptides.com	A+	838	Capable; two-tier documentation
14	CPC Chinese Peptide Company Co., Ltd.	Hangzhou	2001	chinesepeptidecompany.net	A	756	Long-established; channel documentation inconsistent
15	SGN Sangon Biotech (Shanghai) Co., Ltd.	Shanghai	2004	sangonbio.com	A	707	Institutional; peptide line under-documented
16	WWB Wuhan Wansheng Biotechnology Co., Ltd.	Wuhan, Hubei	—	wuhanwanshengbio.com	A	923	High volume; high variance
17	Homopeptide Hunan Aslsen Technology Co., Ltd.	Changsha, Hunan	—	homopeptide.net	A+	466	Verified analytically; unreliable operationally
18	MKM Xi'an Mokemei Biotechnology Co., Ltd.	Xi'an	2016	mokemeibiotechnology.com	A−	954	Good documentation; inconsistent self-description
19	SWB Shanghai Wibson Biotechnology Co., Ltd.	Shanghai	2019	shanghaiwibsonbiotechnology.net	A+	771	Documented; improving
20	WXT WuXi TIDES (WuXi AppTec Testing Division)	Wuxi	2002	wuxitides.net	A−	986	Documented; identity of the trading entity unresolved
Grades run A to C and are the Journal’s own composite of analytical record, documentation quality, correspondence responsiveness and fulfilment reliability. They are not comparable with any other publication’s figures, they are never sold, and they are revised at each quarterly review.

The rest of the market

The twenty above are the companies whose names recur often enough to justify a standing dossier and a quarterly letter. The 188 below appear in the trade but not often enough, or with too little documentation behind them, for the Journal to open a file. They get a line each. No dossier, no grade, no link — that is the finding, not an oversight.

Company	Band	Reports seen	Note
Trusted Peptide	B	2	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Risynth Bio	B	8	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
NUPEPS Peptides	B	4	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Hunan GoodPeptides Biotech Co	B	2	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Bulk Peptide Wholesale	B	20	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Paradigm Peptide	B	16	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Orbitrex Peptides	B	17	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Aavant Research	B	13	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
PeptiAtlas	B	4	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
The Naughty Needle	B	2	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Lux Synth Aminos	B	2	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Huaian Hanyou Peptide	B	7	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Lisa Biopeptide	B	11	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Lipeptides	B	7	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
NextGen Health	B	3	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
OmegAmino	B	4	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Xianhong Tong XHT Peptides	B	5	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Diju Peptides Wellness and Co	B	4	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Zhang TY	B	4	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
SubQ Society	B	3	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Bfflink	B	13	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Laicuinuo LCN	B	7	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Cellupep	B	7	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Shanghai Leader Peptide Biotechnology	B	8	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Peptronix Bio PTB	B	13	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Yongkang Nuoao Trading Co	B	9	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Eros Peptides	B	3	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Champion Peptide	B	6	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Bio Pepz	B	4	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Shandong Nuoweiou Medical Technology Co	B	5	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
PurePEPS	B	4	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Rayshine Peptide Biochemicals	C	6	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
HealthTide Biotech	C	6	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Dankang BioHealth	C	12	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Kits4less	C	7	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Huayi Biotechnology	C	19	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Anlv Biotechnology	C	10	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Xingtai Pukelai Technology Co	C	6	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
EHZ Peptides	C	39	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Zztai Peptide	C	30	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Chimera Peptides	C	8	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Hangzhou Mandy Biotechnology	C	14	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Yabang Peptide	C	10	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Evolve BioPep	C	7	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Quenna PMQ	D	15	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Nanjing Xiyuxun Technology XYX	D	3	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Welon Peptide Solutions	D	5	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Xingtai Lesda Technology	E	6	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Qingdao Hongshengda Trading	E	4	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
ZZQ Peptides	E	22	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Changan District Sheng Peptide Trading	E	7	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
UWA Elite Peptides	E	16	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Hangzhou Youngpeptide Biotechnology HYB	E	15	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Modern Aminos	E	4	Poor record on what has been submitted, and thin coverage on top of it.
Shanghai OuDaXin New Material Technology Center	E	43	Poor record on what has been submitted, and thin coverage on top of it.
Shenzhen Jiechuang Trading	E	8	Poor record on what has been submitted, and thin coverage on top of it.
Shaanxi Dideu Medichem	E	6	Poor record on what has been submitted, and thin coverage on top of it.
Qingdao VitaConin International Trading	E	5	Poor record on what has been submitted, and thin coverage on top of it.
Guangzhou Lengiuanhuang Cosmetics	E	4	Poor record on what has been submitted, and thin coverage on top of it.
Shanghai JinBei Chemical Technology	B	18	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Peptide Technologies	B	11	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Pura Peptides	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Peptide Partners	B to C	64	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Bfflist AMO	B to C	63	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Pure Tested Peptides	B to C	7	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
PeptiSlim	C to E	38	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Glamgurcraft Innovations Foreign Trade	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
HkRoids	B to C	14	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Yiwu Aozuo Trading Co	B to E	91	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptide Haven	B	4	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Atomik Labz	B to C	40	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Bulk Peptide Supply	B to E	20	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
M-Peptides	B to C	17	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Mai Peptide	C to E	55	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptidology	B	16	Consistent on the lots seen, but on too few of them to distinguish a good process from a good run.
Hazel	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
TCI	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Uther	B to E	69	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Shandong Shengyuan Peptide Technology	B to E	24	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
LiliPeptide	C to E	185	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Xingruida XDR	B to D	64	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Eternal Peptides	B	23	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Tianjin Ruiwang New Material Technology Co	B to E	107	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Polaris Peptides	B to D	97	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Injectify	B to E	29	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Precision Peptide Co	B to C	21	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
AKS Chem	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Reta-Peptide	B to E	144	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptide-S	B to E	125	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Planet Peptide	B to D	59	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Henan Sahe Peptide	B to D	18	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Hunan Ruiwang Technology Center	B to C	14	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Skye Peptides	B to E	73	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Nuscience Peptides	B to D	47	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
NextechLabs	B to D	30	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Golden Eagle	B to C	17	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Peptide Worldwide	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
HK Peptides	B to E	343	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Nexaph	B to E	200	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
BeiBangAn	C to D	38	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Shandong Aishi Biotechnology	D to E	37	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Xingtai Jiachuang Technology	C to E	31	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Zenith Jove Peptide ZJ	B to E	26	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Kerisite Shenzhen International	B to D	16	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
YB Peptide	B to E	10	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Qing Li Peptide	B to E	260	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Shanxi Qianyecao Biotech QYC	D to E	66	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Verified Peptides	B to C	34	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Hebei Rimao Technology	C to D	32	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Pure Rawz	B to D	29	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Heman Peptide HM	B to E	29	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Shanghai Baoju	B to E	21	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
ZLZ Peptide	B to E	199	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptide Sciences	B to E	123	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Allen Biotechnology Co ABC	B to E	43	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptide Crafters	B to D	39	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Simple Peptide	B to D	26	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Top Peptide	C to D	21	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Zen Peptides	B to C	13	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Amino Lair	B to D	12	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Oupeptide	B to E	149	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Paramount Peptides	B to E	65	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Yimei	B to E	54	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
LSPL	C to E	40	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Royal Peptides	B to C	30	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Shenzhen Loga Tech LG LOGA	B to E	21	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
ZhuoYan lab	C to E	30	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Astro Peptides	B to E	29	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Mix Peptides	D to E	29	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Science	B to C	12	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
TSC Top Supplements China	C to E	99	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
HXNet	C to E	91	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Xian Yihang Technology	C to E	48	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Haikou Mingheng Technology	B to C	16	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
SRY Labs	B to E	111	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Accelerate Labs	B to E	20	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
PurePeptides	B to E	15	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Regenerative Research	X	2	Middling and shallow. Enough submissions to form an impression, not enough to trust it.
Zhejiang Yichenkang Biotechnology	B to E	58	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Biolongevity Labs	B to E	33	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Alpha-Gen	B to E	30	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
LN Peptides	B to E	28	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Forever Young Pharmacy	B to E	26	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Prime Peptides	B to E	19	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Haikou Mingheng Biotechnology	D to E	11	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Dragon Pharma	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Liberty Peptides	B to E	16	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Amino Asylum	B to C	15	Mixed record across lots, with the better and worse results separated by more than method noise would account for.
Amino Amigos	B to E	37	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Platinum Cryo	B to E	24	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Elite Research USA	B to E	47	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Limitless Life Nootropics	B to D	22	Wide batch-to-batch spread. Some lots test respectably and others do not, and nothing published explains which is which.
Oasis Peptides	B to E	16	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Suaway Lab Research	B to E	39	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Pharma Grade Peptides	B to E	18	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
PeptiLab Research	B to E	15	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Tydes	C to E	41	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Loti Labs	B to E	32	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Wolverine Peptides	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Amplified Amino	C to E	12	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Alimo Peptide	D to E	7	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Richards Biotech Simply Richards	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Coastal Peptides	B to E	26	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptides 4 Research	C to E	20	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Deuschem	B to E	29	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Hybiopeptides	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Peptide Gurus	B to E	45	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Swiss Chems	C to E	9	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
WllyBIO	X	1	One submission on record. A single result is an anecdote about a vial, not a finding about a company.
Biolabshop Limited	C to E	6	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
Peptides For Sale	D to E	21	Results run the whole range, from acceptable to nothing detectable. A batch-to-batch spread that wide is the finding: whatever the mean says, the lot you receive is a coin toss.
NuLife Peptides	B	6	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Wuhan Newtop Biotech	X	2	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
LOOKBiotech	X	2	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
PRIVATE	X	2	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Peptide Ark	X	2	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Zhuoyue Biotechnology	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Hebei Chengtong Technology	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Coffee and Peppers	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Marvel Peptide	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
HK Fat Cat	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Guangzhou Yuao Trading	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
PepKits	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Lejian Biotech Peptide	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
PepLab Solutions	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Explicit Sarms	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Weifang Xingbei International Trade	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Advanced Technology and Industrial	X	1	Listed but never returned a usable result — no assay on file, so nothing here can be said about what they ship.
Listed for completeness. A company appearing here has not been assessed by the Journal and its absence from the dossier programme is not a judgement about it — only a statement that we have not seen enough to write one.