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Algae are a natural cosmetic additive valued for their high vitamin and mineral content. Seaweeds derive their abundance of valuable ingredients from extracting elements from the surrounding water. However, different species of algae may differ in the scope of individual minerals, so it is worth knowing these differences to choose the best care for your skin.
Alginic acid is the most common ingredient in marine algae used in cosmetics. Therefore, it can absorb water and has an intense moisturising and protective effect on skin cells. This ingredient can be found in brown algae, i.e. brown seaweed. Algae also contain many polysaccharides, such as hyaluronic acid. It has firming and rejuvenating properties and is often found in cosmetics for mature skin. Moreover, algae are rich in many soothing and anti-inflammatory substances. In this group, we find numerous lipids and hydroxyl alcohols which regulate the processes occurring in the skin, restoring its balance.
Freshwater algae have slightly different properties from marine algae. They differ mainly in the type of active ingredients. The best-known substances present in freshwater algae are spirulina and chlorella. Spirulina has a rejuvenating and regenerating effect. It can also support healing processes and improve skin colour. Chlorella, on the other hand, has deep cleansing and regulating properties. Both substances are also used as detoxifying ingredients and give the skin a healthy glow.
The variety of substances present in algae allows us to create cosmetics tailored to the needs of different skin types. This is why we can find the following types of cosmetics on the market:
Thanks to their natural origin and numerous accompanying substances, the ingredients contained in algae can penetrate the skin extremely effectively. The use of cosmetics with algae helps with most problems, mainly due to the regulation of cell hydration.