Cosmetic IngredientsL-Ergothioneine
L-Ergothioneine, CAS No. 497-30-3, is a naturally occurring sulfur-containing histidine derivative with antioxidant properties. It is supplied as a white to off-white powder with an HPLC purity specification of ≥99.5% and an assay of ≥99.0% on a dry basis. The current quality specification includes identity, optical rotation, bulk density, loss on drying, heavy metals, HPLC purity, assay, residual solvent, elemental impurities and microbiological limits.
Cosmetic IngredientsAHK-Cu Copper Peptide
AHK-Cu is a copper peptide complex formed from the tripeptide Alanine-Histidine-Lysine (AHK) and copper. It is associated with CAS No. 682809-81-0. The product is supplied as a bluish to bluish-purple powder and is easily soluble in water. The current specification includes purity of ≥98.0%, AHK peptide content of ≥65.0%, and copper content of 8.0–14.0%. Quality parameters also include solution clarity, pH, loss on drying and elemental impurities.
Cosmetic Ingredients3-O-Ethyl Ascorbic Acid
3-O-Ethyl Ascorbic Acid is a vitamin C derivative supplied as a white crystalline powder. The product is controlled by HPLC with an assay of ≥99.0% and purity of ≥99.0%, and is suitable for use as a cosmetic ingredient.
Cosmetic IngredientsCopper Tripeptide-1 (GHK-Cu)
Copper Tripeptide-1, commonly known as GHK-Cu or copper peptide, is a copper complex of the GHK tripeptide and is used as an ingredient for skin and hair cosmetic formulations. It is supplied as a bluish to bluish-purple crystalline powder and is easily soluble in water. The product is controlled according to an in-house quality specification with a purity of ≥99.0%. Key quality parameters include GHK peptide content, copper content, pH, residual solvents, heavy metals and microbiological limits.