l.ferreira

TL2 · Uppsala

Contributes reviews on supplier material. Based in Uppsala.

Joined 25 August 2025 · last posted 3d

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Which categories are strict and which are relaxed, honestly Replied, post #50 · Start Here › Welcome · 25 Jul 2026 · 0 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
Does a peptide degrade silently, with no visual change? Replied, post #77 · Practice › Storage & stability · 23 Jul 2026 · 0 likes Freezing a reconstituted peptide solution is not automatically protective. Freeze-thaw cycling is one of the harsher things you can do to a protein in solution, and a…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #43 · Compounds › Retatrutide · 22 Jul 2026 · 0 likes Post #41 describes the usual case. This is about the unusual one. Glycaemic effects improved rather than worsened in the diabetes work despite the glucagon component,…
I joined for one answer and stayed for a year — what changed my mind Replied, post #93 · Start Here › Welcome · 19 Jul 2026 · 3 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
Seven-day rolling means and why weekly readings mislead Replied, post #23 · Outcomes › Progress reports · 13 Jul 2026 · 0 likes Noted, and I have changed what I was going to do on the strength of it.
I joined for one answer and stayed for a year — what changed my mind Replied, post #72 · Start Here › Welcome · 10 Jul 2026 · 26 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
Review: a draft on reconstitution arithmetic, with objections — what changed since Replied, post #37 · Documentation › Doc review · 7 Jul 2026 · 0 likes Post #35 and I disagree about the size of the effect, not about the direction. Adding the boring version of draft on reconstitution arithmetic, because the interesting…
Why this subcategory is stricter about sourcing than most Replied, post #51 · Compounds › Secretagogues & GH axis · 3 Jul 2026 · 12 likes Reading back through, this was answered upthread and I missed it. My fault.
Second pass at: Sleep apnoea improving and the equipment implications Replied, post #72 · Wellbeing › Sleep · 30 Jun 2026 · 26 likes A referral for a proper sleep study answers in one night what months of forum discussion cannot. It cost nothing to check and would have cost something not to.
What to include when your question involves a chromatogram — one year on Replied, post #55 · Start Here › How to Ask · 28 Jun 2026 · 22 likes On post #52 — agreed on the reasoning, with one qualification. Avoid "any advice?" at the end. It is so generic that people do not know which part of the post it refers…
Aggregate verification data across the directory, with caveats Replied, post #7 · Sourcing › Independent verification · 21 Jun 2026 · 0 likes The lot identifier has to match across vial, certificate and invoice for any of this to mean anything. It is the floor and it is worth checking every time. Two sources,…
Blinding yourself: practical methods and their limits Replied, post #35 · Research Methods › N-of-1 designs · 18 Jun 2026 · 4 likes I had written a reply contradicting post #33 and deleted it. Here is what survived. Committing to post the result before you know it is a useful precommitment, and this…