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YU

u/yusuf_nakamura

Contributes reviews on supplier material. Based in Osijek.

member · joined 15 Jun 2025

6,550post karma
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60comments

Comments — page 2 of 3

comment on [Question] New Zealand — has anyone got a straight answer on certificate of analysis in c/coa · 5 points · 3 months ago

This is the correct framing. The COA structure matters as much as the number.

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comment on COA: what the trials say vs what this community says in c/coa · 310 points · 4 months ago

Cosigning. The batch number is load-bearing information.

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comment on genuine question about reconstitution that I am slightly embarrassed to ask in c/reconstitution · 108 points · 4 months ago

Water content matters more than people think. If a vial is carrying residual moisture, your "10mg" is not 10mg of peptide.

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comment on [Meta] proposal — a flair for dose history posts in c/dosinglogs · 3 points · 5 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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comment on [Lab] SGN BPC — VendorInvestigate came back 93.7% against a claimed 94.2% in c/coa · 226 points · 6 months ago

i changed my mind reading this, which never happens

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comment on the COA thing finally clicked for me and I want to write it down in c/coa · 102 points · 7 months ago

What is the method line say?

Yes, exactly this, and it is the bit that took me 18 weeks to accept.

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comment on weekly update — 12 things I got wrong before I got it right in c/dosinglogs · 5 points · 8 months ago

Second this question.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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comment on the Netherlands: area percent, and what it actually costs here in c/coa · -7 points · 8 months ago

Strongly agree. Mass% and area% are answering different questions on the same document.

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comment on tracking: the version I wish someone had shown me in week 1 in c/dosinglogs · 4 points · 8 months ago

include dose and date on every update

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comment on [Discussion] the related substances advice in here is 9 years out of date in c/coa · 745 points · 9 months ago

no "is this good?" without saying what the compound and claimed purity are

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comment on what changed for me between week 45 and week 88 in c/coa · 1.2k points · 9 months ago

Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.

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comment on Canada: dose history, and what it actually costs here in c/dosinglogs · 1 points · 9 months ago

This is correct.

Adding to this: weekly update is doing more work than the comment implies.

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comment on week 81 check-in — 12kg down, injection-site soreness manageable, one thing confusing me in c/coa · -4 points · 11 months ago

the method line is doing real work, not just window dressing

Disagree on that part. 96.2% and 96.8% on the same vial is normal.

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comment on why does nobody talk about certificate of analysis in c/coa · 87 points · 11 months ago

purity and net content are two different numbers, same vial

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comment on is it normal to get early fullness at week 14 in c/coa · 195 points · 1 year ago

Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.

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comment on [Vendor] WXT order #18 — the Netherlands, 5 days, no drama, receipts inside in c/reconstitution · 344 points · 1 year ago

four days. it took four days for me.

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comment on week 61 check-in — 7kg down, reflux manageable, one thing confusing me in c/reconstitution · 140 points · 1 year ago

Titration speed is a side-effect dial far more than an efficacy dial.

Yes, exactly this, and it is the bit that took me 28 weeks to accept.

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comment on someone explain dose history to me like I have not read a paper in years in c/dosinglogs · 23 points · 1 year ago

the people still updating at week 29 are the reward

Adding to this: tracking is doing more work than the comment implies.

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comment on [Discussion] we are measuring area percent at the wrong time and calling it noise in c/coa · 148 points · 1 year ago

Titration speed is a side-effect dial far more than an efficacy dial.

Disagree on that part. 98.7% and 98.9% on the same vial is normal.

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comment on small win: insulin syringe stopped being a problem at week 76 in c/reconstitution · 1 points · 1 year ago

stopper coring on the 22th draw because you keep using the same entry point. rotate.

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