Science
Mechanism of Action
This extract operates by stimulating human skin keratinocyte differentiation, leading to a more robust skin histoarchitecture and increased corneocyte envelope formation. It boosts the content of vital lipids, including cholesterol sulphate, cholesterol, and ceramides, within keratinocyte cultures. By fortifying the skin's water barrier and mitigating transepidermal water loss (TEWL), it effectively enhances skin hydration. Furthermore, it inhibits melanogenesis to diminish patchy skin pigmentation and possesses both anti-inflammatory and antimicrobial properties.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Topical cosmetic and pharmaceutical compositions containing 0.001-5% Simarouba Amara Extract are effective in enhancing skin's protective water barrier function, promoting keratinocyte differentiation, and providing significant skin depigmentation. A preferred concentration range for these beneficial effects is 0.01-1%.
- 02 When incorporated into hydrated lipidic lamellar phases or liposomes at concentrations up to 30% of the lipidic phase, the extract contributes to its cosmetic and pharmaceutical effects.
- 03 An aqueous extract, applied over 4 weeks to human volunteers, significantly improved skin hydration (measured by capacitance) and reduced transepidermal water loss, with electron microscopic examination confirming positive actions on the corneocyte envelope.
Transparency
Dusting Analysis
There is no indication that Simarouba Amara Extract is commonly used at sub-efficacious concentrations purely for marketing purposes. Efficacy has been demonstrated within specific concentration ranges supported by clinical and patent data.
The Formula
Formulation
Stability
The optimal pH range for stability is not explicitly specified. As a general plant extract, its stability may be influenced by pH variations within the formulation.
Safety
Safety Profile
No specific safety assessment from major regulatory bodies such as the Cosmetic Ingredient Review (CIR), Scientific Committee on Consumer Safety (SCCS), or FDA status for Simarouba Amara Extract was found.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Simarouba Amara Extract is a valuable ingredient that effectively improves skin barrier function, enhances hydration, promotes healthy cellular differentiation, and aids in reducing hyperpigmentation.
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