Science
Mechanism of Action
The extract operates through several cellular pathways to enhance skin vitality. It delivers antioxidant effects, neutralizes free radicals, and precisely targets melanin synthesis by inhibiting tyrosinase and TRP-2 expressions. Furthermore, it modulates key signaling molecules like MITF and phosphorylated CREB while influencing ERK or JNK phosphorylation. Its anti-aging efficacy stems from promoting collagen production in human dermal fibroblasts. Preliminary indications from related species suggest potential for improving skin hydration and reducing wrinkles by modulating matrix metalloproteinases and increasing hyaluronic acid.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In vitro studies reveal that Oenothera laciniata methanolic extract at concentrations under 50 μg/mL exhibits potent antioxidant and anti-melanogenic activities in B16-F10 melanoma cells and Hs68 skin fibroblast cells, without significant cytotoxicity.
- 02 Specifically, at 50 μg/mL, Oenothera laciniata methanol extract significantly decreased melanin content by 35.5% and inhibited intracellular tyrosinase activity by 22.6% in melan-a cells.
- 03 Furthermore, concentrations ranging from 6.25–50 μg/mL of the methanol extract induced collagen production in human dermal fibroblasts, showing increases between 38.7% and 113.0%.
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
While the Cosmetic Ingredient Review (CIR) has not yet reviewed Oenothera Laciniata Leaf/Stem Extract, in vitro safety data is promising. Concentrations of the methanolic extract below 50 μg/mL showed no significant cytotoxicity in tested skin cells. A maximum permissible level of 100 μg/mL was observed in melan-a cells, with cell viability reducing to 53% at 200 μg/mL. Broader genus data for Oenothera biennis suggests general tolerability, though individual sensitivities are possible.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This extract offers a multi-functional approach to skin health, targeting hyperpigmentation, collagen loss, and oxidative stress, making it a promising ingredient for advanced skincare formulations.
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References
Sources