How it works.

The lead peptide modulates tyrosinase activity, the rate-limiting enzyme in melanin biosynthesis. Ancillary components extend the formulation into adjacent pigmentation pathways and antioxidant signaling in melanocyte cultures. Published work on the components has documented effects on tyrosinase expression, ROS handling in cultured melanocytes, and dermal pigmentation modeling.

Each 80mg vial contains a kojic-acid-coupled peptide complex with ancillary tyrosinase-modulating components, studied collectively for effects on melanogenesis pathways. Full composition on every COA.

Lead peptidetyrosinase modulation
Tyrosinase↓ melanin biosynthesis
AncillaryROS · antioxidant signaling
From researchers using Klow

Verified buyer notes.

Initials only — every quote is verified against an order record. We don’t ghost-write reviews.

COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.
M.O.Boston, MAApril 2026
Switched after two bad lots from a previous source. Three orders in, zero issues.
J.K.Austin, TXMarch 2026
Shipment got delayed two days by weather and still arrived at 4°C. Packaging is no joke.
R.A.Seattle, WAFebruary 2026