Science
Mechanism of Action
This extract enhances skin health through a multi-faceted approach. It functions as a potent antioxidant, efficiently neutralizing damaging free radicals such as hydroxyl and nitric oxide, thereby reducing oxidative stress and offering considerable anti-photoaging protection. Its anti-inflammatory action stems from its ability to decrease pro-inflammatory mediators, soothing irritated skin. Furthermore, it acts as an effective skin conditioning agent, supporting revitalization, stimulating microcirculation, boosting cell renewal, and serving as a humectant to improve skin suppleness. It addresses signs of aging by exhibiting anti-tyrosinase activity to counteract uneven pigmentation, and by inhibiting collagenase and hyaluronidase, which helps to maintain dermal thickness and reduce the appearance of wrinkles. Additional benefits include antimicrobial properties and the promotion of wound healing and fibroblast proliferation.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In vitro studies on related Cystoseira species demonstrated hydroxyl radical scavenging (EC50 392-454 µg/mL) and nitric oxide radical scavenging (EC50 546-1293 µg/mL).
- 02 Polysaccharides from Cystoseira species achieved maximal in vitro antioxidant efficacy, including up to 100% DPPH radical scavenging and 98.27% hydroxyl-radical scavenging.
- 03 Significant anti-inflammatory activity was observed with 80% inhibition of nitric oxide radicals for a polysaccharide.
- 04 High hyaluronidase inhibitory potential was exhibited by extracts of related species.
- 05 Related extracts provided photoprotective and anti-aging properties by mitigating UV-induced toxicity, oxidative stress, and pro-inflammatory responses in skin cells.
- 06 In vivo experiments (rats) showed accelerated wound healing after 16 days and pro-angiogenic effects for a polysaccharide from Cystoseira spinosa.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The optimal pH range for the stability of Cystoseira Caespitosa Extract is not explicitly defined. However, polysaccharides from related species typically exhibit a near-neutral pH (e.g., 7.1 ± 0.1 for a 1% solution), and extracts are often neutralized to approximately pH 7.0 for specific applications. The composition and properties of the extract can vary based on factors such as genus, origin, season, age, light intensity, salinity, and water temperature, which can influence formulation stability. Advanced extraction techniques like UAE and MAE are utilized to enhance stability and prevent the deterioration of less stable compounds within the extract.
Safety
Safety Profile
The CIR Expert Panel has deemed Cystoseira Caespitosa Extract safe for use in cosmetics at current concentrations and practices, as part of its assessment of brown algae-derived ingredients. Due diligence in good manufacturing practices is advised to monitor and limit potential impurities, especially arsenic. Extracts from closely related Cystoseira species have shown very low toxicity in cellular tests and no toxicity in mice up to 2000 mg/kg.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Cystoseira Caespitosa Extract is a valuable multi-functional ingredient offering significant antioxidant, anti-inflammatory, anti-aging, and skin conditioning benefits, with a favorable safety profile.
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References
Sources