A supplier suspends shipping to Norway after 12 consecutive customs detentions
The route did not close because of a rule about peptides.
Stability
Page 19 of 20 of this archive, newest first.
What a 1 mL syringe does that a 0.3 mL syringe does not
We work through the arithmetic in full, because it is short, and because the errors it prevents are order-of-magnitude errors.
A supplier suspends shipping to France after 3 consecutive customs detentions
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
The site you keep using is the site that stops working
Repeated injection into the same small area produces lipohypertrophy — thickened, rubbery subcutaneous tissue with blunted and erratic absorption. It is common, it is…
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
A supplier suspends shipping to South Korea after 17 consecutive customs detentions
The route did not close because of a rule about peptides.
Who signed this, and what did they undertake by signing it
Somebody has to be answerable for a release document. On most certificates in this market, nobody is named at all.
In-use stability is a separate study, and almost nobody has done it
An in-use period is established by a dedicated study on a specific formulation in a specific container at a specific concentration. Borrowing one from a marketed product is…
A needle is a single-use instrument
For licensed products the in-use period is established by stability data. For a peptide reconstituted at home there is no such data, and the honest answer is that nobody…
A supplier suspends shipping to South Korea after 6 consecutive customs detentions
The route did not close because of a rule about peptides.
Oxidation, and the peroxide that came in with the surfactant
The sequence predicts the failure mode. A methionine predicts oxidation; an asparagine followed by a glycine predicts deamidation; a cysteine predicts disulphide scrambling.
A supplier suspends shipping to Australia after 19 consecutive customs detentions
The route did not close because of a rule about peptides.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
A supplier suspends shipping to Switzerland after 17 consecutive customs detentions
The route did not close because of a rule about peptides.
A supplier suspends shipping to Brazil after 24 consecutive customs detentions
The route did not close because of a rule about peptides.
The cold chain in this trade is a gel pack and an optimistic estimate
A gel pack has a finite thermal budget, and once it is spent the payload equilibrates with whatever is outside the box. The only question is how long that takes.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
The retest date and the expiry date are not the same document
A retest date says that material should be re-examined before use. An expiry date says it should not be used. The trade uses the second word for the first concept.
A supplier suspends shipping to Italy after 7 consecutive customs detentions
The route did not close because of a rule about peptides.