GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
Single comment threadYou are looking at one branch of week 91 check-in — 17kg down, fatigue manageable, one thing confusing me — 48 comments in the full submission. View in context.
2.1k
c/coa·submitted 3 months ago by u/cesar_ivaturi

week 91 check-in — 17kg down, fatigue manageable, one thing confusing me

Labbranch of 5 comments

Quick one. Canada here. certificate of analysis works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 15 weeks and cost roughly what I expected. The admin was…

Read the full submission and all 48 comments →

This branch

5 comments, started 3 months ago
u/soren_nkemelu202 points·3 months ago

the batch number or it did not happen

replysharereportpermalink
u/india_generic_g-27 points·3 months ago

Sceptical. If this were true we would see it reflected in the data and we do not.

replysharereportpermalink
u/fatima_wojcik1 point·3 months ago

axis labels included, always

replysharereportpermalink
u/santiago_szabo138 points·3 months ago

the batch number or it did not happen

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

replysharereportpermalink
u/cesar_ivaturiOP76 points·3 months ago

Sent one vial to PeptideMeter and VendorInvestigate. 97.9% and 97.2%. Cost me more than the vial did and I would do it again.

replysharereportpermalink

← back to the whole thread

About c/coa

How to read a certificate of analysis and what it does and does not tell you. Area% versus mass%, identity versus quantity, water content, related substances, acetate counterions, and the difference between a vendor-supplied COA and an independent test on the vial you actually received.

71kmembers
130submissions
Aug 2023created
submissions / month, last year
Sponsored

Janoshik Analytical

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

janoshik.comSponsored

GL Biochem (Shanghai)

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

glbiochem.net
More in c/coa
c/coa rules
  1. Post the full document. Cropped COAs that hide the batch number or date get removed.
  2. Redact your own name and order id, not the vendor's batch details.
  3. No "is this good?" without saying what the compound and claimed purity are.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
Full rules and how they are enforced →
Moderators
u/coa_janitoru/purity_pedantu/coa_collectoru/certified_referenceu/first_hundred
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
Before you read on

Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.

Full disclaimer →