Best For Skin Types
All, Sensitive, Combination
Addresses
Usage Frequency
Daily
What Is Enteromorpha Prolifera Water?
Enteromorpha prolifera water is an extract derived from a species of green seaweed commonly found in coastal waters. The ingredient contains water-soluble polysaccharides—complex carbohydrates that naturally occur in the algae—which are retained in the water extract during processing.
In skincare formulations, it functions primarily as a humectant, drawing moisture into the skin's outer layers. It also offers skin-conditioning and protective properties, helping to maintain skin's hydration and support the skin barrier.
How It Works
The polysaccharides in Enteromorpha prolifera water work through two main mechanisms. As humectants, they bind water molecules and draw them into the skin's upper layers, improving hydration and plumpness. This can help the skin feel smoother and more supple.
At a cellular level, research indicates the ingredient may suppress inflammatory signalling pathways—specifically through mechanisms involving immune cells and their inflammatory mediators. This suggests it could help reduce redness and calm irritated skin, though most evidence to date comes from laboratory studies rather than extensive clinical trials on human skin.
Clinical Evidence & References
Laboratory studies on the low-molecular-weight polysaccharides in Enteromorpha prolifera have shown promising anti-inflammatory effects. In cell cultures, the extract suppressed the production of inflammatory compounds such as nitric oxide and pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) through multiple cellular pathways. Some in vivo (animal) research has suggested benefits for wound healing and inflammation reduction.
However, clinical evidence on human skin is limited. Most published research focuses on purified polysaccharide isolates rather than the ingredient as used in cosmetic products. Further human studies would help clarify its efficacy in skincare formulations at typical concentrations.
How to Use
This ingredient is typically incorporated into serums, toners, essences, and moisturisers. There are no known restrictions on frequency of use. It can be layered with most other skincare ingredients, though it works particularly well alongside other hydrating and soothing actives. Start with products containing it at normal concentrations and observe your skin's response over a few weeks before assessing benefit.
Safety & Precautions
Frequently Asked Questions
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