🍪 CompoundTalk uses cookies to improve your experience, analyze traffic, and personalize content. By continuing to use this site, you agree to our Cookie Policy.
Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingUnderstanding peptide purity percentages — what worked for you? Page 3

Understanding peptide purity percentages — what worked for you?

Dr.NateNeph Sat, Aug 16, 2025 at 4:06 PM 29 replies 1,285 viewsPage 3 of 6
Admin
Administrator
2,456
9,812
Oct 2023
Online
Aug 16, 2025 at 8:21 PM#11

Moderator note: Great discussion, everyone. Just a reminder to keep things civil and evidence-based.

Thread quality is excellent — keep it up. 👍

27 6PedsEndoPhilly, SleepDoc_PDX, RegAffairsDC and 24 others
Reply Quote Save Share Report
PurityPaulOR
Senior Member
1,890
7,890
Mar 2024
Oregon
Aug 16, 2025 at 8:38 PM#12

Slightly tangential to Understanding peptide but Dr.ObesityLA reminded me — has the insurance landscape changed recently?

I know it is not exactly on-topic but it seems related enough to ask here rather than starting a new thread. Apologies if this has been covered — I did search first.

2 4MikeNYC_runner
Reply Quote Save Share Report
RunnerRach
Member
467
2,123
Aug 2024
Boston, MA
Aug 16, 2025 at 8:55 PM#13
marcus_mpls said:
Follow-up question: what labs did your doctor order to monitor this

This is exactly right. marcus_mpls articulated what I have been trying to explain to my friends for months. The Understanding peptide aspect is what made the difference for me.

32 5Dr.RaviCardio, jennifer_SEA, tyler_CSCS and 29 others
Reply Quote Save Share Report

Sigma-Aldrich — Research-Grade Standards

Certified reference materials, analytical reagents, and research-grade standards for peptide verification. Trusted by laboratories worldwide.

Shop Reference Standards
FDA_TrackerJim
Senior Member
1,567
7,890
Feb 2024
Rockville, MD
Aug 16, 2025 at 9:12 PM#14

Saving this for reference. Quality thread.

15 17Dr.LeslieOBGYN, MikeNYC_runner and 12 others
Reply Quote Save Share Report
lisa_labSD
Member
278
1,234
Oct 2024
San Diego, CA
Aug 16, 2025 at 9:29 PM#15

Adding my data to this Understanding peptide discussion:

MetricBaselineMonth 4Month 6
Weight252 lbs222 lbs217 lbs
A1C6.6%6.2%5.2%
hsCRP6.03.01.0

Protocol: Tirzepatide 15mg/wk, resistance training 3x/wk, protein 1.4g/kg/day.

34 10cory_ATX, lori_vegas, Dr.PulmRoch and 31 others
Reply Quote Save Share Report

Similar Threads

HPLC vs UPLC for peptide purity — method comparison study18 replies
Mass spectrometry for peptide identity verification — ESI-MS guide7 replies
Endotoxin testing methods — LAL vs recombinant Factor C17 replies
Red flags on COAs — how to spot a fake certificate5 replies
USP reference standards for peptide verification — sourcing guide3 replies
ForumsNewTrendingMembersAccount

Log In

Forgot password?
No account? Register