Batch 20260921-0 · cosmetic grade
Decapeptide-12
DE12P · INCI Decapeptide-12 · CAS 137665-91-9
A ten-amino-acid peptide used in brightening programmes. The largest molecule in the range, and the one most sensitive to how it is weighed.
| Test item | Specification | Result |
|---|---|---|
| Appearance | White to off-white powder | Complies |
| Identity by ESI-MS | Theoretical MW 1395.55 | Complies |
| Purity (HPLC) | > 98.0% | 99.72% |
| Water content (K.F.) | ≤ 7.0% | 4.01% |
| Acetic acid content | ≤ 15.0% | 9.92% |
| Solubility | ≥ 2 mg/ml in water | Complies |
| Manufacturer | Leon (Nanjing) Biotechnology | |
| Reference standard | Enterprise standard · cosmetics grade | |
| Packaging | Sealed container; outer aluminium foil bag | |
| Shelf life | Two years when stored as directed | |
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