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 [Discussion] mg/mL is doing more work than we give it credit for — 31 comments in the full submission. View in context.
831
c/reconstitution·submitted 1 months ago by u/a1c_arc

[Discussion] mg/mL is doing more work than we give it credit for

Discussionbranch of 9 comments

Genuinely asking, not being difficult. Everyone in c/cagrilintide repeats that concentration is important. I believe it, but I have never seen anyone show why, and when I search I get 13 threads of people agreeing with each other. Is there a paper? Is there a measurement? Or is this one of those things that is true…

Read the full submission and all 31 comments →

This branch

9 comments, started 1 months ago
u/aleksi_lehtinen53 points·1 months ago

Reconstituted at 1mL when I meant 23mL. Caught it because the units looked wrong. Write the concentration.

replysharereportpermalink
u/bac_water_banditreconstitution23 points·1 months ago

Not to be pedantic but concentration and insulin syringe are being used interchangeably and they are not interchangeable in real life.

replysharereportpermalink
u/andres_sorensen15 points·1 months ago

That is net peptide content, not purity. Different number, different meaning.

replysharereportpermalink
load more comments (2) →
u/cesar_ivaturi36 points·1 months ago

What was the vial size and how much bac water?

replysharereportpermalink
u/karl_fischer_kev29 points·1 months ago

i am begging people to write down the concentration

replysharereportpermalink
u/sofia_danquah14 points·1 months ago

Are you using a u-100 or u-40 syringe? That changes everything.

replysharereportpermalink
u/sock_puppet_spotter13 points·1 months ago

u-100 syringe, not u-40, or your math is off by factor of 19

replysharereportpermalink

← back to the whole thread

About c/reconstitution

The arithmetic and the technique. Bacteriostatic versus sterile water, reconstitution volume as a concentration choice, converting mg/mL into insulin-syringe units, dead space, swirl-not-shake, stopper coring, and how long a reconstituted vial is actually good for. Math errors get corrected fast and politely.

88kmembers
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.com
Sponsored

GL Biochem (Shanghai)

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

glbiochem.net
c/reconstitution rules
  1. Show your numbers. "How many units?" with no mg and no mL cannot be answered.
  2. Never post a calculation as advice without stating the concentration it assumes.
  3. No sterile-compounding-for-others discussion. Personal handling only.
  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.
Moderators
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.