p.fontaine

TL2 Moderator · Lyon

Contributes reviews on supplier material. Based in Lyon.

Joined 19 January 2025 · last posted 4d

87Posts here

3Topics

1Solutions

812Likes received

333Likes given

22Badges

163Days visited

2.6kPosts read

Recent activity

Full stream

Follow-up: Signs of dehydration worth acting on Replied, post #36 · Safety › Adverse events · 24 Jul 2026 · 8 likes Where to report: in many countries there is a pharmacovigilance system where adverse events can be reported. FDA MedWatch in the US, Yellow Card in UK, EudraVigilance…
Follow-up: How compounding permissions changed when supply normalised Replied, post #59 · Sourcing › Regulatory · 23 Jul 2026 · 2 likes post #58 is right about the mechanism and I think understates the practical bit. Labelling and intended use: a compound sold as "research-use-only" does not change its…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #142 · Sourcing › Logistics · 21 Jul 2026 · 24 likes At what point is a parcel genuinely a problem: if it was despatched weeks ago and there has been no update for days at customs, it might be held or lost. Days of delay…
[2026 update] Detection wavelength and why 214 nm and 280 nm disagree Replied, post #45 · Analytics › HPLC & UHPLC · 17 Jul 2026 · 6 likes This is why a purity figure without the underlying chromatogram is weaker evidence than it appears. It is also why two competent laboratories can report different…
Insurance and replacement policies, compared Replied, post #92 · Sourcing › Logistics · 16 Jul 2026 · 3 likes Tracking stops updating: tracking last updated days ago usually means the package is in transit and will not update until it reaches the next scanning point. No update…
The anatomy of a question that gets answered within an hour Replied, post #113 · Start Here › How to Ask · 15 Jul 2026 · 1 like Lab result questions: state the result, the reference interval, and what else is on the same panel. A single flag on a single draw is usually uninformative without…
What a certificate commits its issuer to Replied, post #25 · Analytics › COA interpretation · 13 Jul 2026 · 20 likes I read post #23 twice before replying, because I had assumed the opposite. When method identifiers are missing: "reversed-phase HPLC" is less specific than…
Second pass at: Absence of evidence and evidence of absence Replied, post #41 · Research Methods › Statistics · 9 Jul 2026 · 3 likes Confounding: a third variable explains an apparent association. In randomised data, randomisation balances confounders. In observational data, confounders can be…
What a certificate commits its issuer to Replied, post #7 · Analytics › COA interpretation · 9 Jul 2026 · 10 likes A certificate of analysis is a statement by its issuer that a defined test was performed on a defined lot and produced a defined result. That is all it is, and it is…
Revisiting: Protein density versus volume when you cannot eat much Replied, post #40 · Nutrition & Training › Protein & intake · 7 Jul 2026 · 0 likes Meeting protein targets on suppressed appetite: this is where the practical difficulty lies. Eating more protein when appetite is suppressed is genuinely hard.…
Prescription portability between countries Replied, post #88 · Access › International · 5 Jul 2026 · 32 likes This follows post #85 rather than contradicting it. Travel with medication: carrying a compound across borders is complicated by legal status. Documenting that it is…
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #90 · Data & Tools › Datasets · 3 Jul 2026 · 1 like Limitations of datasets: all community-collected data has limitations. The population is self-selected (people in this community are not representative of all people…