Science
Mechanism of Action
This extract operates by activating the skin's intrinsic defense mechanisms against external aggressors like UV and blue light. It actively suppresses cellular signs of aging induced by UV irradiation, significantly boosting the viability of dermal fibroblasts and preserving existing collagen, while notably stimulating the synthesis of new collagen, particularly Collagen III. The ingredient also inhibits tyrosinase activity and the formation of sunburn cells, contributing to a reduction in hyperpigmentation. Rich in algal monosaccharides, trace elements, vitamins (such as B3), and amino acids (proline, alanine), it functions as a potent humectant, attracting and retaining moisture, supporting optimal barrier function, and promoting cell renewal. Carotenoids within the microalgae are key to its blue light absorption capabilities, further reducing oxidative stress and damage from digital exposure.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Demonstrated optimal protective efficacy, improving the viability of UVA-irradiated human dermal fibroblasts by up to 156% when applied one hour prior to irradiation.
- 02 Achieved a significant improvement in cell viability, up to 304%, in UVA-irradiated human dermal fibroblasts when applied one hour post-irradiation. This concentration also yielded a dose-dependent increase in total collagen content by up to 134% in non-UV-irradiated human dermal fibroblasts after 48 hours.
- 03 Resulted in a significant 129% increase in Collagen III content in ex vivo skin tissue.
- 04 Reduced blue light-induced skin hyperpigmentation and redness in an in vivo study with 33 women, observed after once-daily application for 34 days.
Transparency
Dusting Analysis
The provided research data does not contain specific information regarding the 'dusting' of Scenedesmus Rubescens Extract in formulations, nor does it specify a typical dusting threshold or red flag percentage.
The Formula
Formulation
Stability
The raw material typically presents a pH between 4.5-5.5. It is recommended to incorporate the extract into the aqueous phase of emulsions at temperatures below 80°C, ideally below 40°C during hot-hot processes, to ensure optimal stability. For storage, it should be kept light-protected in a cool, dry place (15-25°C) within a tightly closed container.
Conflicts
- Insoluble in lipophilic components.
- May exhibit slight precipitation when formulated with ethanol concentrations exceeding 30%.
- Can influence the rheological properties of electrolyte-sensitive systems, potentially requiring an adjustment, such as an increase, in the amount of electrolyte-sensitive thickeners. Polysaccharide-based thickeners (e.g., Xanthan Gum, Cellulose types, Guar Gum) are compatible without limitation.
Safety
Safety Profile
Specific safety assessments by CIR or SCCS for Scenedesmus Rubescens Extract were not identified. However, the ingredient is part of a product that is 100% naturally derived, COSMOS approved, Halal certified, and Vegan friendly, suggesting a generally favorable safety profile. While INCIDecoder notes 'medium' irritancy, explicit sensitization data is not available.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Scenedesmus Rubescens Extract is a valuable, multi-functional ingredient providing robust protection against environmental stressors, profound anti-aging benefits through enhanced collagen synthesis, and improved skin vitality across all skin types.
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