Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6950024/

Use of Seaweed Bioactive Compounds in Skincare

This study explores the potential use of seaweeds in skincare applications. Seaweeds contain bioactive compounds like polyphenols, fucoidan, and carotenoids, which have antioxidant properties. The study focuses on various skincare benefits provided by seaweeds, including:

1. Tyrosinase Inhibition: Seaweeds have compounds that inhibit tyrosinase, an enzyme responsible for melanin synthesis. This inhibition can control hyperpigmentation and contribute to skin whitening.

2. Collagenase and Elastase Inhibition: Seaweeds contain substances that inhibit collagenase and elastase, enzymes responsible for skin matrix degradation. This inhibition may help prevent skin sagging and reduce wrinkles.

3. Hyaluronidase Inhibition: Some seaweed components show the ability to inhibit hyaluronidase, an enzyme involved in hyaluronic acid degradation, contributing to anti-aging effects.

4. Photoprotection Ability: Seaweeds offer photoprotection by producing antioxidants that absorb UV radiation, protecting against DNA damage, hyperpigmentation, premature aging, and sunburn.

5. Moisture Retention Ability: Polysaccharides from seaweeds, with high water-holding capacity, contribute to skin hydration and moisturization, improving skin texture.

6. Antimicrobial Activity: Seaweeds exhibit antimicrobial properties, potentially serving as preservatives in cosmetic products. This can help prevent microbial contamination and extend the shelf life of products.

7. Anti-Acne Activity: Seaweed compounds show antimicrobial potential against acne-inducing bacteria, suggesting their use in formulations for preventing acne-related skin issues.

In conclusion, the study suggests that the bioactive compounds present in seaweeds make them promising ingredients for various skincare applications, offering antioxidant, anti-aging, and protective benefits for the skin.