Science
Mechanism of Action
This extract functions as a potent antioxidant, primarily due to components like epigallocatechin and quercetin, which actively neutralize free radicals on the skin's surface, supporting cellular regeneration. It demonstrates anti-inflammatory properties that reduce redness and sensitivity, while also possessing antibacterial effects that help manage excessive oiliness. Further, it bolsters the skin's natural barrier against environmental aggressors, improves moisture balance and elasticity, and can diminish the visible signs of aging. Its content of tannins and saponins also offers antiseptic and wound-healing benefits, potentially enhancing microcirculation and promoting a more even skin tone.
Research
Clinical Evidence
Medium confidence1%
Key findings
- 01 An in vivo study on 20 female volunteers demonstrated an over 70% increase in epidermis moisturization when 1.0 wt.% Solidago Virgaurea Extract was incorporated into cosmetic macroemulsions. This study also observed beneficial changes in skin macrorelief and topography.
- 02 An alcoholic extract of aerial parts of Solidago Virgaurea subsp. alpestris has been determined suitable for topical cosmetic or dermatological compositions within a concentration range of 0.001-10%.
Transparency
Dusting Analysis
There is no available research data to indicate that Solidago Virgaurea Extract is commonly 'dusted' or used at ineffective sub-clinical percentages, nor is there a defined threshold for such practices.
The Formula
Formulation
Stability
Formulations incorporating Solidago Virgaurea Extract maintain pH stability within the 5.5 to 7.7 range over at least 30 days. Optimal effectiveness and stability are significantly influenced by compatibility with the chosen cosmetic base and the specific emulsifier, with Sorbitan Stearate identified as particularly effective.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has not assessed Solidago Virgaurea Extract for cosmetic use, and it is listed under 'No Reported Uses' by the FDA. While an EMA assessment for ingestible use highlighted a data gap regarding mutagenicity and genotoxicity, these concerns relate to internal consumption. For topical application, SkinSAFE suggests a favorable safety profile, noting the absence of common allergens or irritants.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Solidago Virgaurea Extract is a valuable botanical for its robust antioxidant capacity, significant moisturizing benefits at 1.0 wt.%, and comprehensive skin-soothing and barrier-strengthening properties across all skin types.
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