Science
Mechanism of Action
This extract functions as a robust antioxidant, safeguarding the skin from oxidative stress primarily through its rich composition of vitamin E, polyphenols, and flavonoids. Its moisturizing capabilities stem from a high content of fatty acids, including linoleic and oleic acids, alongside polysaccharides that form a protective, moisture-retaining film on the skin. Proteins and peptides present in the extract contribute to strengthening the skin's natural barrier. For anti-aging, it delivers firming and tensing effects, notably minimizing muscle cell contractions via oligopeptides (patented as Myoxinol), which helps to smooth expression lines. Additionally, it stimulates collagen synthesis to improve overall wrinkle appearance. The extract also exhibits anti-inflammatory properties and may contribute to skin brightening through anti-tyrosinase activity.
Research
Clinical Evidence
Medium confidence1-7% w/w
Key findings
- 01 In vitro studies demonstrated a concentration-dependent increase in collagen biosynthesis within fibroblasts, observed at concentrations between 50-2000 ppm.
- 02 Ex vivo research on isolated rat diaphragms revealed an inhibition of muscle contraction, suggesting a potential to reduce expression wrinkles, also effective within a 50-2000 ppm range.
- 03 Lotions formulated with 1-7% w/w of the extract maintained physical and chemical stability over six heating/cooling cycles, indicating its suitability for formulation and potential for skin whitening and anti-aging applications.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The extract demonstrates good stability, remaining physically and chemically sound in oil-in-water lotions at concentrations of 1-7% w/w over multiple heating/cooling cycles. It can be processed using either water or organic solvents.
Safety
Safety Profile
In vitro studies confirmed the extract's nontoxicity to normal fibroblast cells (L929), and it is generally considered highly safe for topical skin application. While the raw plant may cause irritation during harvesting due to spiny hairs, this risk does not apply to the refined cosmetic seed extract. No specific review by CIR or SCCS has been found.
Your Skin
Skin Compatibility
Our Assessment
Verdict
With its proven ability to enhance collagen, reduce expression lines, provide antioxidant protection, and moisturize, coupled with a low risk of irritation, Hibiscus Esculentus Seed Extract is a valuable, versatile ingredient for comprehensive skin health.
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References
Sources