Science
Mechanism of Action
It stimulates collagen production and preserves elastin by inhibiting degrading enzymes. Additionally, it neutralizes oxidative stress, brightens skin tone, and enhances barrier function through increased epidermal-dermal junction proteins.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Exhibited neuroprotective activity in SH-SY5Y cells with 73.7% cell viability, noting no cytotoxicity up to 0.0125%. (Note: This study focused on neuroprotective effects, not direct skin efficacy.)
- 02 A cream containing Chlorella vulgaris (a different species) improved skin firmness, tone, stretch marks, spider veins, and decreased pigmentation after 84 days of use.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability for Chlorella extracts is typically within pH 5-9, with particular effectiveness around pH 7.09 and 7.5; acidic solutions may cause immediate color changes.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded insufficient data for Chlorella Variabilis Extract safety. Dermal toxicity is 'Not determined' for this species, though Chlorella Vulgaris showed no toxicity in rats at 2000 mg/kg BW.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite a promising mechanism of action and evidence of neuroprotective properties, direct clinical efficacy for Chlorella Variabilis Extract on human skin is limited, and its safety in cosmetic formulations is currently deemed with 'insufficient data' by CIR.
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References
Sources