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CETYL 2-GLYCERYL ASCORBATE.

Valuable / ANTIOXIDANT, HUMECTANT

A sophisticated, amphiphilic Vitamin C derivative designed for superior stability and dual-phase solubility. This multifunctional molecule acts as both a potent skin-brightening antioxidant and a structural emulsifier that reinforces the skin's lipid barrier.

Antioxidant Skin Brightening Emulsifying Humectant Collagen Synthesis Support

Science

By integrating both cetyl (lipid-loving) and glyceryl (water-loving) groups, this molecule penetrates the skin effectively to inhibit tyrosinase activity, thereby slowing melanin biosynthesis. Simultaneously, it triggers fibroblasts to accelerate Type I collagen production while self-assembling into lamellar structures that stabilize emulsions and improve epidermal moisture retention.


Research

High confidence
Effective range 1–5%
Optimal

2%

Key findings

  1. 01 Demonstrated significant reduction in melanin synthesis and induction of Type I collagen at concentrations between 1-5% (Seiwa Kasei Technical Data).

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.5%

Because this ingredient also functions as a high-performance emulsifier, brands may include it at negligible levels (below 0.5%) for label claims. A concentration of at least 1% is required to achieve the documented brightening and collagen-boosting effects.


The Formula

Solubility
Both
Optimal pH 3 – 7
0 7 14

Stability

Highly resistant to heat and oxidation; unlike L-Ascorbic Acid, it does not yellow over time or degrade when formulated with mineral filters like titanium dioxide.

Synergies

  • Titanium Dioxide
  • Pentylene Glycol
  • Vitamin E

Conflicts

  • Strong oxidizing agents
  • Formulations with pH above 8.0

Safety

CIR Status
Not reviewed
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Widely utilized in Japanese quasi-drug formulations with an established safety profile for long-term topical use.


Your Skin

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

Our Assessment

Valuable

An elite Vitamin C derivative that solves the traditional stability issues of ascorbic acid while providing secondary benefits as a barrier-mimicking emulsifier.


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