Black & White Peptides Ltd. Registered in England & Wales, company number 16876162.
Purity & Lab Reports
Every batch is independently tested by Janoshik Analytical. Transparency and quality you can verify.
Verified 99%+ Purity
Our peptides consistently exceed 99% purity across all tested batches. Each report includes a unique verification key you can check directly on Janoshik’s website.
99.84%
Tirzepatide
99.48%
Semaglutide
99.21%
CJC 1295 (no DAC)
99.07%
BPC-157
How Our Testing Works
We send samples from every batch to Janoshik Analytical, an independent third-party lab
Janoshik verifies purity, confirms peptide identity, and quantifies the mass of active compound per vial
Each report includes a unique verification key you can check at janoshik.com/verify
Only batches passing 99%+ purity are approved for sale to our customers
Verified Lab Reports
Each report can be independently verified at janoshik.com using the unique key.
Tirzepatide 10mg
99.84% Batch 01BWP26T · 08 Dec 2025
Tirzepatide 30mg
99.76% Batch 02BWP26T · 10 Dec 2025
BPC-157 5mg
99.07% Batch 01BWP26BP · 08 Dec 2025
99.84% Tirzepatide 10mg Batch 01BWP26T · Measured: 31.30mg · 08 Dec 2025
99.84% Tirzepatide 30mg Batch 01BWP26T · Measured: 31.30mg · 08 Dec 2025
99.07% BPC-157 5mg Batch 01BWP26BP · Measured: 4.75mg · 08 Dec 2025
Get new Janoshik HPLC reports by email
We publish a new Janoshik report with every fresh batch. Leave your email to receive the lab report the day it’s issued. No product marketing, no claims – just the raw purity data.