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ACETYLGLUTAMINOYL FARNESYLCYSTEINE.

Essential CAS 1227280-36-5 / HUMECTANT, SKIN CONDITIONING

A potent isoprenylcysteine small molecule, Acetylglutaminoyl Farnesylcysteine significantly enhances skin hydration and barrier function. It also visibly reduces wrinkles, improves texture, and diminishes oxidative stress and dark circles.

antioxidant skin-conditioning humectant anti-inflammatory

Science

It primarily boosts Aquaporin-3 (AQP3) expression, vital for water and glycerol transport in the skin. Additionally, it counteracts inflammation by inhibiting cytokines (IL-6, TNF-alpha) and reduces oxidative stress through HO-1 induction.


Research

High confidence
Effective range 0.25–1%
Optimal

1%

Key findings

  1. 01 Concentrations of 0.25-0.5% dose-dependently increased Aquaporin-3 (AQP3) gene expression in epidermal cells by 322- to 456-fold, significantly improving skin hydration and barrier function.
  2. 02 A 1.0% concentration of related IPC molecules showed significant improvements in wrinkle reduction, hydration, and skin texture over 12 weeks compared to vehicle.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 5.5 – 6.5
0 7 14

Stability

Highly stable at skin-neutral pH, with optimal stability typically achieved at pH 6.5. It is miscible in water (>10%) but insoluble in alcohols and oils.

Conflicts

  • low pH environments (<5.0)
  • highly lipophilic anhydrous systems without proper emulsification

Safety

CIR Status
Not reviewed
Max tested
1%
Sensitization risk Low

Manufacturers classify it as safe for topical cosmetic use. Human Repeat Insult Patch Tests on related IPC compounds at 1% showed no signs of sensitization or irritation.


Your Skin

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

Our Assessment

Essential

Acetylglutaminoyl Farnesylcysteine is an essential active for significantly enhancing skin hydration, barrier function, and overall rejuvenation through multiple mechanisms.


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