Science
Mechanism of Action
This ingredient functions primarily as a robust antioxidant, demonstrating significant free radical scavenging with DPPH inhibition exceeding 80% and ORAC values up to 72.1 ± 1.2 µM TE. Its rich composition of polyphenols, flavonoids, and other antioxidants helps to mitigate oxidative stress and reduce the production of pro-inflammatory cytokines. As a hygroscopic humectant, it efficiently draws moisture into the stratum corneum, supporting skin hydration and elasticity. Additionally, it exhibits antibacterial activity against various bacteria, including Staphylococcus aureus (with an MIC as low as 31.25 µg/mL). Containing lipids, proteins, vitamins, and minerals, it offers revitalizing and re-mineralizing effects, potentially stimulating circulation and cell renewal. Furthermore, there is emerging potential for anti-aging benefits through the inhibition of collagenase and hyaluronidase activities, which may help to reduce the formation of uneven pigmentation and wrinkles.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Cystoseira Compressa Powder is safe for use in cosmetics under current practices. While no specific maximum concentration was identified by CIR, a human repeat insult patch test (HRIPT) indicated a low sensitization potential. Manufacturers should adhere to good manufacturing practices to monitor and limit potential impurities such as arsenic, which can naturally occur in brown algae-derived ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Cystoseira Compressa Powder is a valuable multi-functional ingredient, offering significant antioxidant protection, deep hydration, and potential anti-aging benefits, making it suitable for all skin types.
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References
Sources