Crafting Cosmetics
Erythrulose (L-Erythrulose)
Erythrulose (L-Erythrulose)
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Product Overview
Erythrulose (L-Erythrulose) is a specialized keto-sugar cosmetic raw material widely utilized in sunless tanning systems to facilitate a gradual, natural-looking bronzed appearance. By reacting with the amino acids in the outermost layers of the skin, this water-soluble active develops color progressively, offering formulators a reliable alternative to rapid-developing tanning agents. Its inclusion in skin care formulations and dedicated self-tanners ensures a smoother, more even aesthetic with a minimized risk of abrupt color transitions.
Key Benefits & Cosmetic Applications
Formulating with Erythrulose provides cosmetic chemists and indie brand founders with a highly versatile tanning active that prioritizes even color development and formulation flexibility. Its unique kinetic profile makes it an excellent choice for creating sophisticated, professional cosmetic formulations that deliver a refined user experience.
- Gradual Color Development: Erythrulose develops color more slowly than traditional tanning actives, creating a progressive, natural-looking tan that reduces the appearance of abrupt transitions.
- Supports Even Tone Uniformity: When incorporated into well-designed aqueous systems, this active contributes to a smoother, more uniform tanning result across the skin's surface.
- High Water Solubility: Its complete solubility in water makes it exceptionally suitable for lightweight, water-based serums, sprays, gels, and clear emulsions.
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Formulation Versatility: This cosmetic raw material can be seamlessly integrated into a wide variety of product categories, allowing for customized self-tanning systems across multiple formats.
Common Cosmetic Applications
- Self-Tanning Lotions & Creams
- Water-Based Tanning Sprays & Mists
- Self-Tanning Serums & Gel-Creams
- Gradual Tanning Moisturizers
- Tanning Mousses & Foams
- Professional Sunless Tanning Solutions
Technical Profile & Specifications
| Property | Specification |
|---|---|
| INCI Name | Erythrulose |
| CAS Number | 40031-31-0 |
| Appearance | Clear viscous liquid, yellow to orange-brown, almost odorless |
| Purity / Active Content | ≥ 76.0 % |
| Solubility | Soluble in water |
| Functional Class / Role | Tanning Active |
| pH Stability Range | 2.0 – 5.0 |
| Suggested Usage Rate | 1.0 – 5.0 % |
| Recommended Processing Phase | Water phase (cold process) or cool-down phase below 40°C (104°F) |
| Shelf Life & Storage | 2 years. Store in a cool, dry place away from direct sunlight, heat, and moisture. Keep containers tightly sealed when not in use to prevent degradation, oxidation, or microbial contamination. Refrigeration is recommended for long-term storage to maintain optimal stability and color integrity. |
Formulation & Processing Guidelines
How to Incorporate
- Erythrulose is water-soluble and should be incorporated into water-based systems.
- Add the ingredient to the water phase (cold process) or during the cool-down phase, depending on the overall formulation design and thermal stability requirements.
- Validate specific processing conditions and temperature limitations through bench testing and stability evaluation.
Compatibility
- Maintain the final formulation within the optimal acidic pH range (pH 2.0 – 5.0) to support active performance and product stability.
- Verify compatibility with other tanning actives, preservatives, fragrances, and colorants through comprehensive stability testing.
- Where specific compatibility data is unavailable, conduct additional laboratory testing prior to scale-up or commercialization.
Formulation Tips
- Monitor the final product pH carefully during development to ensure optimal tanning performance.
- Conduct both accelerated and real-time stability testing to assess color development, color stability, and overall product integrity over time.
- Evaluate packaging compatibility, particularly for formulations intended for extended shelf life, to prevent ingredient degradation.
- Begin with small pilot batches when developing new self-tanning systems to fine-tune the color development profile.
Suggested Applications
- Self-tanning lotions and creams
- Water-based tanning sprays and mists
- Gel serums and gradual tanning moisturizers
- Professional sunless tanning formulations
Sustainability & Ethical Profile
Erythrulose is a keto-sugar that aligns with modern, conscientious formulation practices. While specific environmental or sourcing details beyond our core standards are not detailed in the current documentation, it functions effectively in clean, water-based systems.
In alignment with Crafting Cosmetics sourcing standards, this ingredient is vegan-friendly and cruelty-free.
Regulatory & Safety Disclaimer
Disclaimer: This product is supplied as a cosmetic raw material for external use only. It is intended for cosmetic and personal care formulation applications only and should not be used as a finished product.
Technical Documentation
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