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AN

u/andres_restrepo

Contributes reviews on supplier material. Based in Accra.

member · joined 16 Jul 2025

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Overview — page 2 of 3

comment on [Meta] proposal — a flair for integration posts in c/hplc · 78 points · 4 months ago

This. A shoulder that does not baseline-resolve is a question, not a quantity.

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comment on [PSA] ice pack is not what most of this community thinks it is in c/coldchain · 144 points · 4 months ago

A stability statement is only meaningful with its conditions attached: temperature, duration, light exposure, and whether it covers powder or solution. Ask which.

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comment on [Results] 49 weeks, 7kg, and dose escalation was the hard part in c/retatrutide · 92 points · 4 months ago

comparing reta phase 2 to sema phase 3 is comparing different things

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comment on how much of what we believe about packaging actually comes from stability threads in c/coldchain · 8 points · 4 months ago

Ordered from the warehouse in France instead of origin and the transit went from a fortnight to 15 days. Entirely different proposition in August.

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comment on [Question] is 97.9% actually fine or am I being sold a rounding error in c/retatrutide · 521 points · 5 months ago

Agreed on the heart-rate reports. They are consistent enough across the threads to be worth noting, not enough to be a finding.

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comment on [Vendor] GGPeps vs GL Biochem on the same compound, same month — both cleared 99.0% in c/coa · 828 points · 5 months ago

Batch number and date of analysis, are both on there?

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comment on three years of HPLC threads, summarised so you do not have to read them in c/hplc · 5 points · 5 months ago

Same view — reporting the gradient is what makes a result checkable rather than merely stated.

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comment on non-scale victory — my 14-week log, condensed into one table in c/progresspics · 1 points · 5 months ago

the first person to notice was me, months after it started

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comment on help me understand lean mass, I have read the wiki twice in c/glp1muscle · 5 points · 6 months ago

Small fix — that is fat-free mass, not muscle mass. The scan cannot separate them the way the post assumes.

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comment on help me understand lean mass, I have read the wiki twice in c/glp1muscle · 1 points · 6 months ago

Agreed — protein and resistance training. Everything else in these threads is a rounding error on those two.

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comment on does purity actually matter or is it forum lore at this point in c/coa · 98 points · 6 months ago

water content is on there and everyone skips it

soren_nkemelu has the distinction right — one is a fraction of the detector signal, the other is a fraction of the mass.

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comment on dose escalation — my 2-week log, condensed into one table in c/retatrutide · 18 points · 6 months ago

Disagree. "More receptors means more effect" is not how any of this works and the trial data does not support the linear story.

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comment on is it normal to get food noise at week 20 in c/glp1muscle · 11 points · 6 months ago

Cosigning that protein gets harder precisely when appetite drops. That is the actual difficulty and it is logistical.

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comment on three years of related substances threads, summarised so you do not have to read them in c/coa · 0 points · 7 months ago

My first certificate had a compound name, a percentage and a logo.

noor_cardoso has the distinction right — one is a fraction of the detector signal, the other is a fraction of the mass.

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comment on [Question] gradient — what am I missing here in c/hplc · 10 points · 7 months ago

axis labels or the trace is decoration

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comment on reading related substances threads from 2024 and half of it aged badly in c/coa · 34 points · 7 months ago

The PDF creation date being later than the analysis date is usually a re-issue or a re-export. It is worth one question and it is not evidence of anything on its own.

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comment on switched from 1.0mg to 2.4mg and nausea got better, not worse in c/progresspics · 1 points · 7 months ago

text only here, by community rule, and it works better than you would think

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comment on week 31 check-in — 11kg down, sulphur burps manageable, one thing confusing me in c/bloodwork · 1 points · 7 months ago

Draw at the same point in the week now, fasting, same lab. The noise dropped enormously once I standardised.

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comment on does non-scale victory actually matter or is it forum lore at this point in c/progresspics · 10 points · 7 months ago

Correction: 16kg over 19 months is a different claim from 16kg in a month, and the post reads as the second.

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comment on the regain question that gets asked weekly, answered properly in c/tapering · 1 points · 7 months ago

decide what you are watching for before you stop

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comment on anyone else notice resistance training kicking in around week 92 in c/glp1muscle · 1 points · 8 months ago

grip strength and lift numbers are cheap longitudinal markers

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comment on gradient is the most under-discussed thing on this board in c/hplc · 10 points · 8 months ago

Ran a blank after a high-concentration injection and found the carryover I had been calling an impurity.

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comment on does discontinuation actually matter or is it forum lore at this point in c/tapering · 11 points · 8 months ago

Careful — interval stretching and dose reduction are different interventions and your post uses them interchangeably.

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comment on someone explain goal to me like I have not read a paper in years in c/progresspics · 0 points · 8 months ago

Same.

Slight disagreement: that is a month, not a plateau, and calling it one makes it heavier than it is.

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comment on someone explain goal to me like I have not read a paper in years in c/progresspics · 311 points · 8 months ago

a milestone is whatever you decide it is

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comment on someone explain goal to me like I have not read a paper in years in c/progresspics · 312 points · 8 months ago

Is the goal you set at the start still the goal?

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comment on why does nobody talk about excursion in c/coldchain · 94 points · 9 months ago

Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in the vial.

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comment on [Discussion] the packaging advice in here is 3 years out of date in c/coldchain · 60 points · 9 months ago

Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in the vial.

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comment on [Meta] proposal — a flair for related substances posts in c/coa · 1 points · 9 months ago

post the whole document, not the headline number

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comment on unpopular opinion: most of what gets said here about ice pack is guesswork in c/coldchain · 3 points · 11 months ago

Which lane, and had it been quoted at that transit time?

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comment on [Results] 51 weeks on 1.7mg, full numbers, ask me anything boring in c/bloodwork · 433 points · 11 months ago

Nobody here can interpret your panel and this comment is not doing so. What a board can usefully do is help you ask better questions of somebody who can.

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comment on unpopular opinion: most of what gets said here about purity is guesswork in c/coa · 87 points · 11 months ago

Not quite. Two labs with different gradients can resolve a close-eluting impurity differently and both be reporting honestly.

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comment on [PSA] stability is not what most of this community thinks it is in c/coldchain · 168 points · 11 months ago

Cosigning the regional stock point. Ordering from a warehouse in France took the whole question off my table.

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comment on [Meta] proposal — a flair for gradient posts in c/hplc · 21 points · 11 months ago

retention time alone is not identity

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comment on purity — 9 things I got wrong before I got it right in c/coa · 339 points · 1 year ago

Ask what the stability statement was written against — temperature, light, and whether it was the lyophilised powder or the reconstituted solution. Those are three different claims.

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comment on reading purity threads from 2024 and half of it aged badly in c/hplc · 64 points · 1 year ago

Careful — you are treating retention time as identity. Two things can co-elute and the trace will not tell you.

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comment on my ApoB moved and I cannot work out whether resistance training is why in c/glp1muscle · 4 points · 1 year ago

Hydration status and fasting state affect the lean mass estimate. Standardising both is the difference between a comparison and a coin toss.

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comment on someone explain HPLC to me like I have not read a paper in years in c/hplc · 572 points · 1 year ago

axis labels or the trace is decoration

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