Aminopropyl Ascorbyl Phosphate

What is Aminopropyl Ascorbyl Phosphate?

Aminopropyl Ascorbyl Phosphate is a synthetic, water-soluble compound derived from L-ascorbic acid, featuring a phosphate group linked to an aminopropyl chain. This modification boosts its chemical stability, preventing rapid degradation from light, air, or heat that affects pure vitamin C. Primarily used in skincare formulations like serums, moisturizers, and treatments, it functions by slowly releasing active ascorbic acid through enzymatic action in the skin. As an antioxidant, it neutralizes free radicals, while its skin conditioning properties help maintain moisture balance and suppleness. Its enhanced solubility allows incorporation into a wide range of products without instability issues, making it suitable for aqueous-based cosmetics where long-term efficacy matters.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Antioxidant
Slows oxidation of oils, fragrances, and sensitive actives to improve shelf life and reduce rancidity or color change; sometimes also supports skin protection from oxidative stress.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Delivers antioxidant effects to help shield skin from environmental stressors.

Supports skin conditioning to promote softness and flexibility.

Provides a stable vitamin C source that integrates well into various formulations.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with sensitive skin needing a milder vitamin C option.
Those with allergies to ascorbic acid derivatives.
Individuals seeking antioxidant support in daily routines.
People who react to phosphate-based compounds.
Users looking for non-comedogenic ingredients in their products.
Individuals advised to patch test new actives.

Safety Notes

  • Considered low hazard with no significant comedogenic concerns.
  • Typically well-tolerated across skin types when used as directed.

Frequently Asked Questions about Aminopropyl Ascorbyl Phosphate

What makes it different from regular vitamin C?

Its phosphate and aminopropyl groups enhance stability and solubility for better formulation use.

Is it suitable for sensitive skin?

Yes, it generally shows low irritation potential compared to ascorbic acid.

How does it work in products?

It converts to active vitamin C in the skin, supporting antioxidant and conditioning roles.