Science
Mechanism of Action
This extract operates through multiple pathways to enhance skin health. It demonstrates potent anti-inflammatory effects by inhibiting the COX-2 enzyme and significantly reducing the expression of a broad spectrum of pro-inflammatory cytokines, including IL-1beta, IL-6, IL-4, IL-5, IL-13, and TNF-α. Furthermore, it modulates thymic stromal lymphopoietin (TSLP) in inflammatory conditions. For anti-aging benefits, Isatis tinctoria extracts exhibit senolytic and senostatic properties, effectively attenuating the pro-inflammatory senescence-associated secretory phenotype (SASP) in senescent fibroblasts. The seed oil specifically contributes emollient and moisturizing qualities, attributed to its rich content of fatty acids such as oleic, erucic, and linolenic acids. Additionally, it possesses general antioxidant properties.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Woad extracts demonstrated a senolytic effect on senescent human skin fibroblasts and attenuated pro-inflammatory senescence-associated secretory phenotype (SASP), indicating potential for preventing skin aging.
- 02 Topical application of a 100 µg/ml petroleum ether Isatis tinctoria extract significantly inhibited acute edema and inflammatory response in a mouse model of contact hypersensitivity.
- 03 An in vitro study observed 45% inhibition of the COX-2 enzyme with a 7 µg/ml petroleum ether Isatis tinctoria extract.
- 04 An Isatis tinctoria L. water extract decreased serum levels of IgE and TNF-α, and inhibited mRNA expression of TNF-α, IL-6, and IL-13 in skin tissues, improving mast cell and eosinophil infiltration in a DNCB-induced atopic dermatitis mouse model.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Some active compounds within Isatis tinctoria, such as isatans A and B, are more stable in acidic environments and tend to degrade or transform into indigo under alkaline conditions. These compounds are also thermolabile and can be degraded by conventional drying methods.
Conflicts
- Alkaline conditions may lead to the degradation or transformation of active compounds into indigo.
Safety
Safety Profile
Isatis tinctoria extracts contain chemicals similar to aspirin, posing a potential risk of allergic reactions or asthma attacks in individuals with aspirin allergies. The erucic acid content in Isatis tinctoria seeds necessitates controlled concentrations for cosmetic or pharmaceutical applications to comply with regulatory limits. The ingredient is listed as positive for cosmetic use in Europe by the CosIng Database.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Given its demonstrated anti-inflammatory, anti-aging, and moisturizing properties, Isatis Tinctoria Seed Extract is a valuable ingredient for addressing various skin concerns, particularly in sensitive and aging skin formulations.
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References
Sources