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 reconstitution vs mg/mL — genuinely asking which matters more — 42 comments in the full submission. View in context.
3.7k
c/reconstitution·submitted 1 year ago by u/tomas_kimani

reconstitution vs mg/mL — genuinely asking which matters more

PSAbranch of 5 comments

I have had 16 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 40 days on nominally the same lane, which matters more in summer than in February. The independent number came back 98.4% against a claimed…

Read the full submission and all 42 comments →

This branch

5 comments, started 1 year ago
u/arne_restrepo110 points·1 year ago

Spent 2 weeks confused about concentration math until someone showed me the table. 20mg, 2mL, concentration is 20/2.

replysharereportpermalink
u/georgi_adebayo45 points·1 year ago

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

replysharereportpermalink
u/andres_sorensen45 points·1 year ago

stopper coring on the 10th draw because you keep using the same entry point. rotate.

replysharereportpermalink
u/rasmus_mensah28 points·1 year ago

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

replysharereportpermalink
u/runa_grimaldi10 points·1 year ago

bacteriostatic and sterile water are not interchangeable, do not use them that way

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

Sigma-Aldrich Standards

Certified reference materials for peptide identity and purity work.

sigmaaldrich.com
More in c/reconstitution
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.
Full rules and how they are enforced →
Moderators
u/bac_water_banditu/vial_math_verau/units_not_mgu/swirl_dont_shake
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 →