Cosmetic Active Ingredients

L-(+)-Erythrulose

  • CAS No.533-50-6
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity L-(+)-Erythrulose (≥98%) for use as a natural-origin active in self-tanning cosmetic formulations.

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Product Technical Details

Product Overview

L-(+)-Erythrulose is a naturally derived tetrose sugar widely recognized in the personal care industry for its role as a key active ingredient in sunless tanning products. As the L-isomer of erythrulose, it reacts with amino acids in the skin’s stratum corneum through the Maillard reaction, producing a gradual, golden-brown coloration that complements and extends the tan achieved with dihydroxyacetone (DHA). Unlike synthetic dyes, L-(+)-Erythrulose delivers a more uniform, streak-free, and longer-lasting result with reduced risk of orange undertones.

Specifications

Molecular FormulaC₄H₈O₄
Molecular Weight120.104 g/mol
Density1.4 ± 0.1 g/cm³
Boiling Point349.6 ± 27.0 °C at 760 mmHg
Flash Point179.4 ± 20.2 °C
Vapour Pressure0.0 ± 1.7 mmHg at 25°C
Refractive Index1.507
AppearanceWhite to off-white powder
Assay≥98.0%

Industrial Applications

In cosmetic science, L-(+)-Erythrulose is primarily employed as a synergistic tanning agent alongside DHA to enhance color development, improve fade uniformity, and prolong the visual effect of self-tanners. Its slower reaction kinetics compared to DHA contribute to a more natural-looking tan that evolves over 24–72 hours. Beyond aesthetics, it exhibits mild humectant properties, supporting skin hydration during the tanning process. This ingredient is suitable for lotions, mousses, sprays, and wipes targeting clean-beauty, vegan, and dermatologically tested product lines.

  • Delivers a natural, non-orange hue when combined with DHA
  • Extends tan longevity by smoothing the fading profile
  • Compatible with a wide range of cosmetic bases and preservative systems
  • Meets stringent quality standards for global regulatory compliance

Stored in a cool, well-ventilated area, L-(+)-Erythrulose maintains stability under recommended conditions. Standard packaging is 25 kg per drum, with custom options available for industrial-scale buyers.