NEA Diagnostics
RE

Reta-Peptide

Semaglutide

147 tests · latest 20 May 2026

88%
NEA rating
#2 of 19 Semaglutide vendors

16 of 17 classifiable tests passed

natural 97% · customers 4.1★ (9)

NEA analysis · Semaglutide

Reta-Peptide Semaglutide tests strong on purity at 98.9% and fill sits right on the label at 100.1%. A small number of lots show variance, but identity passes and recent results trend up.

Purity focus — purity 99.5%+, dose ±35%methodology

Peptides

10 rated · tap to focus
#PeptideRatingN
1Semaglutideselected88%17
2GLOW84%26
35 Amino 1MQ79%15
4TB 50067%10
5Tirzepatide66%33
6DSIP61%2
7IGF 1 LR347%8
8CJC 129546%11
9Retatrutide44%20
10GHK Cu37%5
Rating trend

Semaglutide rating from this vendor, after each test

Reta-Peptide Semaglutide test history

17 tests · 16 pass · 1 fail

COA-backed lab tests
DateResultPurityDosageLabel
20 May 2026Pass99%Identity Pass-0.5%4.97 mg tested / 5 mg labelBatch SE202617sent by Vendor
28 Apr 2026Pass99.3%Identity Pass+2.3%5.11 mg tested / 5 mg labelBatch SE202616sent by Vendor
30 Mar 2026Pass98.6%Identity Pass+0.3%5.01 mg tested / 5 mg labelBatch SE202615sent by Vendor
4 Mar 2026Pass98.9%Identity Pass+0.2%5.01 mg tested / 5 mg labelBatch SE202614sent by Vendor
15 Feb 2026Pass99.3%Identity Pass+0.9%5.04 mg tested / 5 mg labelBatch SE202613sent by Public
1 Feb 2026Pass99.9%Identity Pass+0.9%5.04 mg tested / 5 mg labelBatch SE202612sent by Vendor
9 Jan 2026Pass99.5%Identity Pass-1%4.95 mg tested / 5 mg labelBatch SE202611sent by Public
29 Dec 2025Pass99.4%Identity Pass-0.1%5 mg tested / 5 mg labelBatch SE202610sent by Public
4 Dec 2025Pass98.4%Identity Pass+2.1%5.1 mg tested / 5 mg labelBatch SE202609sent by Vendor
24 Nov 2025Pass98.4%Identity Pass-1.2%4.94 mg tested / 5 mg labelBatch SE202608sent by Public
1-10 of 17
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