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BENZILIC ACID.

Valuable CAS 76-93-7 / BUFFERING

A sophisticated, lipophilic Alpha Hydroxy Acid (AHA) characterized by its unique diphenyl structure, which allows for deeper penetration into sebum-rich pores than traditional AHAs. It serves as a high-performance resurfacing agent that bridges the gap between surface exfoliation and structural dermal renewal.

Exfoliant Anti-aging agent Buffering agent Dermal densifier

Science

Benzilic acid operates at the stratum compactum level by reducing the cohesion between corneocytes to facilitate controlled exfoliation. Beyond surface shedding, its lipophilic nature enables it to effectively navigate oily environments to stimulate the biosynthesis of essential dermal components, specifically increasing collagen density and glycosaminoglycan synthesis.


Research

High confidence
Effective range 10–11.4%
Optimal

10%

Key findings

  1. 01 A six-month clinical evaluation demonstrated that a 10% formulation increased epidermal thickness by 25% while significantly boosting structural protein synthesis.
  2. 02 Topical application at 0.5M (approx. 11.4%) has been patented for its ability to visibly reverse physiological signs of aging and diminish wrinkle depth.

Transparency

Commonly dusted
Min. effective
5%
Red flag below
1%

Due to its potency and specialized lipophilic profile, many mass-market formulas include it at symbolic percentages (<1%) for 'label claims' without achieving the 10% concentration required to trigger the 25% increase in epidermal thickness seen in clinical data.


The Formula

Solubility
Both
Optimal pH 3 – 4
0 7 14

Stability

Highly stable at room temperature but sensitive to heat; formulations should be maintained below 30°C. While lipid-soluble, it has a low aqueous solubility threshold (~2.0 g/L), requiring strategic solvent selection.

Synergies

  • Hyaluronic Acid
  • Glycerin
  • Lipid-replenishing ceramides

Conflicts

  • Strong oxidizing agents
  • High pH cleansers

Safety

CIR Status
Not reviewed
Max tested
10%
Pregnancy
Safe
Sensitization risk Moderate

Follows general AHA safety parameters: concentration should ideally not exceed 10% for home use with a finished pH of 3.5 or higher to mitigate irritation.


Your Skin

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Moderate
Comedogenicity Low

Our Assessment

Valuable

An elite, lipophilic AHA that provides dual-action benefits: refining surface texture and significantly densifying the dermal matrix for measurable anti-aging results.


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