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AMINOPROPYL KOJYL PHOSPHATE.

Valuable / SKIN CONDITIONING

A stable pro-drug of kojic acid, Aminopropyl Kojyl Phosphate offers enhanced skin brightening and antioxidant benefits. It effectively targets hyperpigmentation while being gentler and more stable than traditional kojic acid.

antioxidant skin brightening skin-conditioning

Science

Upon skin penetration, it is enzymatically converted into active kojic acid, which inhibits tyrosinase activity to reduce melanin synthesis. This mechanism, combined with its antioxidant properties, helps fade dark spots and brighten the complexion.


Research

High confidence
Effective range 1–3%
Optimal

N/A

Key findings

  1. 01 A 0.1% nanoemulsion formulation demonstrated significant antioxidant and depigmenting efficacy, comparable to 1 mM ascorbic acid, without cytotoxicity up to 1%.
  2. 02 In situ studies on human melanocytes confirmed its pro-drug action, showing significant tyrosinase inhibition and reducing melanin in melanoma cells by 75%.
  3. 03 In vivo application on UVB-induced hyperpigmented guinea pig skin demonstrated clear depigmenting effects.

Transparency

Not commonly dusted

No specific data is available regarding the dusting potential of this ingredient.


The Formula

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Significantly more stable than kojic acid, resisting oxidation and discoloration. It should be stored in a cool, dark, and dry place, showing stability in nanoemulsion systems for up to 12 months.

Conflicts

  • strong oxidizing agents

Safety

CIR Status
Not reviewed
Max tested
3%
Sensitization risk Low

Commonly used in commercial products at concentrations between 1% and 3%. Studies showed no cytotoxicity up to 1%, and it is considered gentler than pure kojic acid.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This pro-drug offers effective, stable skin brightening and antioxidant benefits with improved tolerability compared to traditional kojic acid, making it a valuable ingredient for hyperpigmentation concerns.


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