Algae are a group of aquatic or marine organisms. As simple plants, all algae are able to photosynthesise, whether they're red or green, blue-green, or just plain brown algae!
In skincare, some algae extracts have been shown to act as emollients and soothing agents capable of delivering a variety of nutrients to the skin.
Types Of Algae Used In Skin Care
There are thousands of varieties of algae, broken somewhat simplistically into groups based on their colours. All are rich in nutrients, vitamins, and minerals, but each group also has unique benefits when used in skincare:
- Brown algae is the most commonly used in cosmetic applications, high in antioxidants, and best for supporting skin hydration and elasticity.
- Red algae have the highest level of carotenoids and are also considered to be the most useful as a UV protectant, helping protect skin from the sun’s harmful rays.
- Blue-green algae (also known as spirulina) is rich in antioxidants. Spirulina is often found as an ingredient in smoothies and nutrition supplements.
- Green algae is used less frequently in cosmetics than other, more colourful algae, but it is antioxidant-rich, and is also used as a thickening agent in skin care products.
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