Science
Mechanism of Action
This extract operates via a multifaceted approach, primarily as a powerful antioxidant that scavenges free radicals and reactive oxygen species, thereby mitigating oxidative damage at a cellular level. It functions as a photoprotectant by inhibiting the formation of DNA-damaging cyclobutane pyrimidine dimers (CPDs) and increasing the minimal erythema dose (MED), enhancing the skin's resilience to UV radiation. Furthermore, it modulates the immune response by reducing UV-induced immune suppression and Langerhans cell depletion, while also acting as an anti-inflammatory agent by preventing mast cell infiltration and blocking cyclooxygenase-2 expression. The extract also contributes to balanced melanin production, which helps reduce sun spots, and reinforces the skin's natural protective barrier, aiding in optimal moisture retention and firmness.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 When incorporated into sunscreen formulations, a 0.5% concentration was observed to significantly enhance protection against skin changes and damage in volunteers exposed to solar radiation.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The extract is water-soluble and stable in saline solutions. A 1% solution maintains an optimal pH range of 3.5 to 7.5. It exhibits excellent stability for 60 months when stored under controlled conditions of 25 ± 2 °C and 60 ± 5% relative humidity.
Safety
Safety Profile
Considered safe for topical application in cosmetic formulations under current practices, with a low irritancy profile (low irritant if inhaled or in contact with eyes). While specific topical adverse reaction data is limited, oral doses up to 1080 mg/day have been administered with minor, rare side effects such as gastrointestinal complaints. However, due to a lack of safety and efficacy data, use during pregnancy and lactation is generally advised to be avoided.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This fern-derived extract is a valuable addition to skincare formulations, providing multifaceted defense against UV-induced damage, calming inflammation, and supporting overall skin health.
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References
Sources