Science
Mechanism of Action
This extract operates through several key pathways: it delivers potent antioxidant protection by elevating glutathione levels, boosting superoxide dismutase and catalase activities, and activating Nrf2 expression in human keratinocytes. Its anti-inflammatory action is demonstrated by reducing TNF-ɑ post-UV exposure and safeguarding keratinocytes from NK-ⲕB activation. Furthermore, it offers neuro-soothing effects by modulating the cutaneous neuronal receptor TRPA1, effectively diminishing sensations of itching and tingling. The extract also exhibits anti-aging potential by inhibiting enzymes like collagenase, elastase, tyrosinase, and hyaluronidase, increasing dermal collagen content, and engaging TGFβ/SMAD signaling pathways. An added benefit includes balancing sebum production and showing antimicrobial efficacy against gram-positive bacteria.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Oral supplementation with Coriander Seed Oil (CSO) significantly reduced UV-induced skin erythema by 11.8% and 24.1% in reactive skin types, and by 18.1% and 18.7% across all skin types. It also dramatically decreased UV-induced skin lipoperoxidation by 31.9% at 4 hours and 69.9% at 24 hours post-exposure.
- 02 Further oral studies demonstrated a notable reduction in stinging sensation intensity, decreasing by 20% after 28 days and 62% after 56 days, with duration reductions of 41% and 88% respectively.
- 03 In vitro studies on human dermal fibroblasts and in vivo studies on hairless mice indicated that Coriandrum sativum extract protects against UVB-induced photoaging by enhancing procollagen type I production and lowering MMP-1 levels.
- 04 Topical formulations, including coriander oil cream and nano-encapsulated essential oil, have shown to attenuate UV-induced photoaging in mouse models, reducing markers like MDA, COX-2, PGE-2, MMP-1, JNK, and AP-1, while increasing skin collagen content and expression of TGFβ, TGFβII, and SMAD3 proteins.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Generally stable under recommended storage conditions, requiring protection from direct sunlight and extreme temperatures. Essential oil forms, being prone to volatilization and oxidative degradation, may benefit from nanoencapsulation for enhanced stability.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has determined that coriander oil, sharing similar components, is safe for cosmetic application, showing no irritation, sensitization, or photosensitization in animal or human trials, though it may be a mild ocular irritant. However, it is critical to note that an aqueous extract of Coriandrum sativum leaves, specifically at high concentrations, has exhibited mutagenic effects in Ames tests, reduced cell survival, and induced severe malformations in chicken embryonic development. Therefore, usage conditions, particularly concentration and form, are crucial for ensuring safety, especially for the leaf extract.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Coriandrum Sativum Extract is a valuable ingredient, demonstrating robust antioxidant, anti-inflammatory, soothing, and anti-aging properties across various studies, suggesting significant potential for comprehensive skin benefits.
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