u/marit_mensa
Contributes reviews on supplier material. Based in Rennes.
member · joined 12 Mar 2025
comment on two labs, same vial, 98.1 and 96.4. both right? in c/hplc · 57 points · 7 days ago
instrument quality is less important than analyst consistency
comment on [Pricing] £129 to £189 for the same thing across four pharmacies this month in c/glp1uk · 5 points · 7 days ago
Strongly agree. pharmacy is region-specific.
comment on retention time shifted 0.4 min and nobody wants to talk about it in c/hplc · 142 points · 20 days ago
two labs, two different baselines, two different purity numbers, both honest
Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.
comment on someone explain chromatogram to me like I have not read a paper in years in c/hplc · 36 points · 1 months ago
chromatogram or it did not happen
comment on [Discussion] can we stop arguing about research peptides until somebody posts a number in c/researchpeptides · 0 points · 2 months ago
Yeah, identity is the first question.
comment on small win: chromatogram stopped being a problem at week 35 in c/hplc · 281 points · 2 months ago
This is the correct method framing. Column and gradient are load-bearing fields.
comment on identity vs TB-500 — genuinely asking which matters more in c/researchpeptides · 1 points · 4 months ago
The fatigue was genuinely awful for three weeks and then simply stopped. I know that is not useful information, but it is what happened.
comment on [Results] 17 weeks, 10kg, and LC-MS was the hard part in c/hplc · 1 points · 5 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 [Question] chromatogram — what am I missing here in c/hplc · 88 points · 5 months ago
Yeah, the chromatogram profile matters more than the headline number.
comment on [Results] 87 weeks, 46kg, and MHRA was the hard part in c/glp1uk · 46 points · 6 months ago
Disagree. What you are describing is consistent with pharmacy, not with what you concluded.
comment on [Results] 47 weeks, 46kg, and identity was the hard part in c/researchpeptides · 25 points · 8 months ago
name the compound precisely, TB-500 and Thymosin Beta-4 are not the same
comment on [Discussion] we are measuring tier 3 at the wrong time and calling it noise in c/glp1uk · 12 points · 8 months ago
no naming online pharmacies that prescribe without a consultation
comment on am I the only one who found TB-500 harder than the injections in c/researchpeptides · 85 points · 8 months ago
New Zealand here. Waited 21 months on a list, gave up, went private, and the total cost was roughly what I expected.
comment on Denmark: identity, and what it actually costs here in c/researchpeptides · 73 points · 9 months ago
Came off after 18 weeks for financial reasons.
Adding to this: identity is doing more work than the comment implies.
comment on genuine question about gradient that I am slightly embarrassed to ask in c/hplc · 38 points · 10 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 [Lab] 23th independent test on QSC, and the trend is the interesting part in c/glp1uk · 77 points · 11 months ago
The confident tone is doing a lot of work that the evidence is not.
comment on [Question] Australia — has anyone got a straight answer on secretagogue in c/researchpeptides · 2 points · 1 year ago
Yeah, identity is the first question.
comment on MHRA: the version I wish someone had shown me in week 1 in c/glp1uk · 14 points · 1 year ago
the tier 3 pathway is the only free route, it is slow
comment on MHRA: the version I wish someone had shown me in week 1 in c/glp1uk · 46 points · 1 year ago
Yeah, the NHS waitlist is genuinely two years in most places.
comment on Spain: gradient, and what it actually costs here in c/hplc · 1.8k points · 1 year ago
Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.