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BETA-ALANINE.

Valuable CAS 107-95-9 / HUMECTANT

A specialized amino acid that serves as the essential precursor to carnosine, providing robust protection against the structural degradation of skin proteins. It is a dual-action molecule that addresses both metabolic aging through anti-glycation and surface clarity through melanin regulation.

Humectant Skin Brightening Anti-Glycation Antioxidant

Science

Topical Beta-Alanine acts primarily by boosting carnosine levels, which neutralizes oxidative stress and inhibits the formation of Advanced Glycation End-products (AGEs) that cause skin rigidity. In its stabilized derivative forms, it prevents hyperpigmentation by interfering with tyrosinase enzymes and preventing the transfer of pigment-carrying melanosomes to surface keratinocytes.


Research

High confidence
Effective range 2–18%
Optimal

2%

Key findings

  1. 01 A 56-day clinical evaluation of a 2% concentration demonstrated significant reductions in spot intensity and overall brightening, with early improvements noted at the 14-day mark.
  2. 02 Research indicates that supplemental Beta-Alanine effectively elevates carnosine concentrations within tissues, providing systemic anti-glycation and antioxidant support to mitigate the signs of aging.

Transparency

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

While effective at 2%, many mass-market formulas include it at trace levels purely for label claims. To see visible brightening and anti-glycation benefits, concentrations should ideally reach the 2% threshold established in efficacy studies.


The Formula

Solubility
Water
Optimal pH 6 – 7.5
0 7 14

Stability

Highly stable in dry environments but sensitive to moisture, light, and high thermal exposure in aqueous solutions. It exhibits amphoteric properties with an isoelectric point of 6.9.

Synergies

  • Antioxidants
  • Niacinamide
  • Peptides

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments (>pH 8.5)

Safety

CIR Status
Safe as used
Max tested
18%
Pregnancy
Safe
Sensitization risk Low

The CIR Expert Panel classifies Beta-Alanine as safe within current cosmetic practices. Users should distinguish between the amino acid and its diacetic acid derivative, which currently lacks sufficient safety data.


Your Skin

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

Our Assessment

Valuable

An scientifically-backed multi-tasker that excels at reversing protein glycation while providing visible brightening for uneven skin tones.


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