Trying to settle this properly because the thread from last year went in circles. The claim: certificate of analysis matters. The counter-claim: it is measurement…
u/andres_restrepo
Contributes reviews on supplier material. Based in Accra.
member · joined 16 Jul 2025
Overview — page 3 of 5
comment on help me understand glucagon, I have read the wiki twice in c/retatrutide · 25 points · 3 months ago
Which trial arm and what was the n?
Disagree on that part. 93.7% and 99.3% on the same vial is normal.
comment on help me understand glucagon, I have read the wiki twice in c/retatrutide · 101 points · 3 months ago
nobody should be giving this to anyone without extensive monitoring
comment on am I the only one who found milestone harder than the injections in c/progresspics · 53 points · 3 months ago
No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.
comment on [Meta] proposal — a flair for certificate of analysis posts in c/coa · 16 points · 3 months ago
Batch number and date of analysis? Both are load-bearing.
comment on help me understand chromatogram, I have read the wiki twice in c/hplc · 1 points · 3 months ago
the detector wavelength matters more than people think
comment on bloodwork — my 15-week log, condensed into one table in c/bloodwork · 99 points · 4 months ago
Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.
comment on anyone else notice batch kicking in around week 84 in c/coa · -22 points · 4 months ago
Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.
comment on interval stretching is the most under-discussed thing in c/compounding in c/tapering · 11 points · 4 months ago
Disagree. What you are describing is consistent with tapering, not with what you concluded.
comment on three years of integration threads, summarised so you do not have to read them in c/hplc · 78 points · 4 months ago
The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.
comment on my A1c moved and I cannot work out whether lyophilised is why in c/coldchain · 42 points · 4 months ago
Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.
comment on water content — 5 things I got wrong before I got it right in c/coa · 9 points · 4 months ago
Sceptical. If this were true we would see it reflected in the data and we do not.
comment on the A1c question that gets asked weekly, answered properly in c/bloodwork · 1 points · 4 months ago
ALT is where the fatty-liver story shows up first
comment on help me understand purity, I have read the wiki twice in c/coa · 5 points · 4 months ago
Slight fix: the number was 99.0, not 98.9. Decimal point, but a fairly consequential one.
comment on help me understand purity, I have read the wiki twice in c/coa · 19 points · 4 months ago
Asked HJ for the batch-specific COA and they sent it within six hours, full document, batch number, date, everything. That is the baseline.
comment on help me understand purity, I have read the wiki twice in c/coa · 45 points · 4 months ago
the counterion is part of the mass you paid for
comment on what would you tell week-1 you about TRIUMPH in c/retatrutide · 22 points · 4 months ago
I love that this community will spend 40 comments on a detail. That pedantry is why the numbers here matter.
comment on the packaging thing finally clicked for me and I want to write it down in c/coldchain · 8 points · 5 months ago
France to France: 4 days with WXT and 7 days with TFC. Same route, different carriers, variance is real.
comment on [Vendor] WXT order #4 — Germany, 13 days, no drama, receipts inside in c/retatrutide · 71 points · 5 months ago
the glucagon component changes the side effect profile, not just the efficacy
comment on stalled for 20 weeks at 1.0mg and I refuse to panic this time in c/coa · 828 points · 5 months ago
chromatogram or it did not happen