Certificates
Every batch, independently tested.
We publish a Certificate of Analysis for every production batch — peptide identity, purity by HPLC, heavy metals and microbial screen. First-batch COAs are being finalised and will drop in as products ship.
HPLC purity
High-performance liquid chromatography confirms peptide identity and purity ≥ 98%.
Heavy metals
ICP-MS screen for lead, arsenic, cadmium and mercury against ISO limits.
Microbial
Total viable count + pathogen screen per ISO 17516 cosmetic standard.
| Product | Batch | Purity | Tested | Lab | COA |
|---|---|---|---|---|---|
| Peptide Serum (GHK-Cu 2%) | SP-SER-2601 | ≥ 99.2% | Feb 2026 | Independent SA lab | Pending |
| Peptide Cream (Copper tri-peptide) | SP-CRE-2601 | ≥ 99.0% | Feb 2026 | Independent SA lab | Pending |
| The Duo bundle | SP-DUO-2601 | See SERUM + CREAM | Feb 2026 | Independent SA lab | Pending |
Need a specific batch report? Email hello@summerpeptides.co.za with your order number and we'll send it back within one working day.