See what's really in the vial.

We collect independent lab tests so you don't have to take a brand's word for it. Each test shows how pure the product is — higher percentages are better.

What is purity?

The percentage of the vial that actually matches the labeled peptide. 98%+ is generally considered high-quality.

Why does it matter?

Low purity can mean weaker effects, unknown ingredients, or both. Independent tests catch this.

Who tested these?

Accredited third-party labs. We never run our own tests in-house — that keeps things honest.

BPC-157
Helix Bio
Excellent
Purity
99.4%
Batch
HLX-0421
Date
May 12, 2026
Semaglutide
Cortex Labs
Excellent
Purity
98.9%
Batch
CTX-2210
Date
May 9, 2026
Tirzepatide
Apex Research
Very good
Purity
98.2%
Batch
APX-1109
Date
May 5, 2026
TB-500
Northbound Bio
Very good
Purity
97.7%
Batch
NBB-0884
Date
May 2, 2026
CJC-1295
Pure Peptide Co.
Good
Purity
97.1%
Batch
PPC-0312
Date
Apr 28, 2026
GHK-Cu
Vector Compounds
Good
Purity
96.3%
Batch
VEC-0091
Date
Apr 22, 2026
Ipamorelin
Atlas Peptides
Acceptable
Purity
95.6%
Batch
ATL-0741
Date
Apr 18, 2026