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u/piotr_bruun

Contributes reviews on supplier material. Based in Graz.

member · joined 12 Mar 2025

20,907post karma
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11submissions
103comments

comment on [Explainer] why 1mL syringes cause overdoses and 0.3mL ones do not in c/reconstitution · 13 points · 4 days ago

never post a calculation as advice without stating the concentration

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comment on [Explainer] why 1mL syringes cause overdoses and 0.3mL ones do not in c/reconstitution · 67 points · 5 days ago

dead space is real and the syringe matters

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comment on do i need to keep it in the fridge before i mix it in c/newbiequestions · 8 points · 6 days ago

what is bac water — bacteriostatic water, preservative included

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comment on cored the stopper on day 9. rotate your puncture site in c/reconstitution · 1 points · 6 days ago

This is correct. 2mL versus 10mL is the common mistake.

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comment on [Stats] the placebo arm lost weight too. always ask by how much. in c/trialwatch · 16 points · 8 days ago

Yeah, absolute numbers matter more than the press release.

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comment on what is a COA and how do i know if it is real in c/newbiequestions · 6 points · 9 days ago

What does the wiki say?

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comment on sulphur burps: a taxonomy, a timeline, and my sincere apologies to my flatmate in c/sideeffects · 1 points · 15 days ago

Strongly agree. Describe your dose, your week number, and your titration speed or nobody can help.

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comment on what does 0.25 mean, 0.25 of what in c/newbiequestions · 10 points · 15 days ago

link the wiki instead of retyping, but politely

Disagree on that part. 97.4% and 97.6% on the same vial is normal.

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comment on [Paper] ATTAIN-1 — an oral pill with no food restrictions is a bigger deal than the % suggests in c/trialwatch · 0 points · 17 days ago

Slight fix: the number was 93.7, not 99.3. Decimal point, but a fairly consequential one.

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comment on reconstituted at 1mL instead of 2mL and caught it before injecting. lucky. in c/reconstitution · 19 points · 17 days ago

What was the vial size and how much bac water?

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comment on [Question] how long were you on before you tapered in c/tapering · 0 points · 17 days ago

tapering instructions are not welcome here

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comment on small win: non-peptide stopped being a problem at week 16 in c/orforglipron · 10 points · 17 days ago

Stalled for 14 weeks, changed nothing, and it started moving again on week 11.

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comment on genuine question about concentration that I am slightly embarrassed to ask in c/reconstitution · 72 points · 24 days ago

Not convinced. The evidence does not support that reading.

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comment on [Results] 47 weeks, 36kg, and SURPASS was the hard part in c/trialwatch · 1 points · 24 days ago

give the trial name, phase, n, and primary endpoint in the body

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comment on ACHIEVE — my 18-week log, condensed into one table in c/orforglipron · 52 points · 25 days ago

Second this question. I have wondered about small molecule for 18 months and never seen a straight answer.

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comment on [Results] 12 weeks, 35kg, and FLOW was the hard part in c/trialwatch · 10 points · 1 months ago

Strongly agree. Phase 2 is investigational, not conclusive.

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comment on silly question but which day of the week should i pick in c/newbiequestions · 92 points · 1 months ago

what is a COA — certificate of analysis, document from the lab

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comment on what would you tell week-1 you about week one in c/newbiequestions · 19 points · 1 months ago

Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.

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comment on week 71 check-in — 6kg down, constipation manageable, one thing confusing me in c/reconstitution · 8 points · 1 months ago

This is correct. 1mL versus 12mL is the common mistake.

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comment on small molecule vs ATTAIN — genuinely asking which matters more in c/orforglipron · -11 points · 1 months ago

Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.

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Cake day 12 Mar 2025
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Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

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GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

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