Touchstone Peptides

Home Certificates of analysis RETA20-0803

Certificate of analysis

Retatrutide 20 mg

Lot RETA20-0803 · certificate issued Aug 28, 2026

Latest certificate

Verified · COA7599

Purity

99.79%

RP-HPLC (214 nm)

Measured content

20.22 mg

Stated strength 20 mg

Sterility

Not Detected

USP <71>

All results

TestResultMethod
Purity99.79%RP-HPLC (214 nm)
Measured content20.22 mgHPLC quantitation
IdentityConformsLC-MS/MS
Endotoxin<0.05 EU/mlUSP <85>
Heavy metals<0.01 ppmUSP <232>
SterilityNot DetectedUSP <71>

Values as printed on the laboratory’s certificate. Where a certificate does not list a result, this page says so and fills nothing in.

Certificate & verification details

Verification number

COA7599

Checked Sep 24, 2026: this number opens this certificate on the testing laboratory’s own site.

Testing laboratory
Bioviridian Inc. · signed by Shane Straight, M.S.
Laboratory site
bioviridians.com
Certificate number
COA7599
Lot number
RETA20-0803
Sample received
Aug 11, 2026
Certificate issued
Aug 28, 2026
Sample as named on the certificate
Retatrutide 20mg
Sample type
White lyophilized powder
Vendor named on the certificate
American Peptides

The laboratory tested a sample of this lot submitted by the vendor named above. The certificate is not reproduced on this site; the links go to the original files, unaltered.

Issue history

  1. Current issue · Aug 28, 2026 · served by bioviridians.com3f951037…2e7c93PDF
  2. Earlier issue · Aug 17, 2026 · as published by the vendor before the laboratory reissued it7049f899…dc231dPDF

Changed in the reissue: Sterility result added; sample type changed from "blue lyophilized powder" to "white lyophilized powder". Lot, strength and results are the same in both issues.

The fingerprint (SHA-256) identifies the exact file we read on Sep 24, 2026. If the laboratory changes the file, the fingerprint changes and the next check flags it.

Other certificates for Retatrutide

See RetatrutideAll certificates

For laboratory research use only. Not a drug, not a supplement, not for human or veterinary use.