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ANHYDROXYLITOL.

Valuable CAS 53448-53-6 / HUMECTANT, SKIN CONDITIONING

A sophisticated, sugar-derived humectant that acts as a structural hydration manager within the skin. It transcends basic moisture binding by optimizing the skin's internal water transport system and reinforcing the physical lipid barrier.

Humectant Skin-conditioning agent Barrier restructurer Aquaporin booster

Science

Operates as a '3D hydration booster' by upregulating the expression of Aquaporin-3 (AQP3) proteins, which facilitate water and glycerol circulation through the epidermis. Simultaneously, it stimulates the synthesis of essential ceramides and cholesterol while boosting Natural Moisturizing Factors (NMF) like hyaluronic acid to lock in moisture at a cellular level.


Research

High confidence
Effective range 1.5–3%
Optimal

1.5%

Key findings

  1. 01 In vivo testing of 1.5% pure concentration demonstrated a 127% surge in skin hydration levels 24 hours after application, alongside significant barrier reinforcement.
  2. 02 Clinical trials involving a 3% complex showed immediate and long-term increases in stratum corneum moisture content, resulting in visible improvements to skin smoothness over 30 days.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.1%

While often included in 'Aquaxyl' complexes at low total percentages, concentrations below 1% of the pure ingredient may provide surface humectancy without triggering the significant AQP3 protein expression or lipid synthesis required for true barrier restructuring.


The Formula

Solubility
Water
Optimal pH 5 – 7.5
0 7 14

Stability

Highly stable in aqueous solutions within the physiological pH range. It is hygroscopic and requires climate-controlled storage to prevent moisture absorption prior to formulation.

Synergies

  • Xylitylglucoside
  • Xylitol
  • Glycerin
  • Hyaluronic Acid

Conflicts

  • Extreme heat over 135°C
  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
1.5%
Pregnancy
Safe
Sensitization risk Low

Assessed by the CIR in 2021; 1.5% represents the typical maximum pure concentration used in high-performance leave-on applications.


Your Skin

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

Our Assessment

Valuable

An essential ingredient for precision hydration that bridges the gap between surface moisture and long-term barrier resilience.


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