Science
Mechanism of Action
This extract functions as a powerful antioxidant and humectant, leveraging a complex blend of bioactive compounds. It contains hydrating polysaccharides and essential fatty acids, such as linolenic acid, which are crucial for reinforcing the skin's barrier function and enhancing moisture retention. Antioxidant carotenoids, notably zeaxanthin, actively neutralize pro-aging damage induced by UV exposure and environmental pollutants, simultaneously promoting a more uniform skin tone. The extract also supplies amino acids to bolster connective tissue, Vitamin B12 to provide moisturizing and antioxidant effects that decelerate cellular aging and stimulate regeneration, and Vitamin C to protect against atmospheric aggressors and stimulate collagen production, yielding a discernible 'filling and tensor' effect. Furthermore, Omega-3 fatty acids contribute to a robust skin barrier, mitigate irritation, and assist in regulating sebum production to help manage acne. Collectively, these components enable anti-melanogenic, anti-inflammatory, modest UV-protective, and anti-wrinkling activities, complemented by film-forming properties.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 When formulated in an oil-in-water emulsion, an in-vivo study on healthy volunteers demonstrated a significant increase in skin hydration for at least one hour post-application. In vitro assessments also indicated a UV protection factor not exceeding SPF 12.5.
- 02 An ethanol extract from Nannochloropsis sp. (NG15) exhibited broad skin-protective actions, including anti-melanogenic, antioxidant, moisturizing, anti-inflammatory, anti-wrinkling, and UV-protective functions, with low associated cytotoxicity. Notably, it dose-dependently enhanced the expression of HAS-2, a crucial skin moisturizing agent, by up to 274.58% at this concentration.
- 03 Cosmetic ingredient suppliers propose concentrations between 1% and 5% for inclusion in blends targeting skin-tightening; however, additional research is required to fully substantiate this specific claim.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Due to its rich antioxidant content, formulations containing Nannochloropsis oculata extract require packaging in air-tight and light-proof containers to safeguard against degradation. The inherent chemical instability and suboptimal solubility can present formulation challenges, suggesting encapsulation as a promising strategy to enhance both stability and bioavailability. It has been successfully incorporated at 2% into stable oil-in-water emulsions.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR), SCCS, and FDA have not conducted specific evaluations for Nannochloropsis oculata extract. Nevertheless, studies indicate low cytotoxicity at concentrations relevant for cosmetic applications, and it is generally regarded as non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Nannochloropsis Oculata Extract is a valuable, multi-functional ingredient, providing notable hydration, robust antioxidant defense, and anti-aging benefits suitable for all skin types with a low risk of irritation.
Related
Similar Ingredients
Finding similar ingredients…