Red Microalgae
Red microalgae is a nutrient-rich natural ingredient harvested from the sea, prized in UK skincare for its ability to hydrate, protect and revitalise skin. Packed with antioxidants, vitamins and polysaccharides, it delivers a soothing, plumping effect without irritation. You’ll find it in moisturisers, serums and masks aimed at tired or stressed complexions.
How it works in skincare
In cosmetics red microalgae works by forming a flexible, breathable film on the skin’s surface that helps lock in moisture while shielding against environmental stressors. Its high polysaccharide content supports the skin’s natural barrier and provides instant smoothness and softness, while naturally occurring antioxidants help defend against free-radical damage that can lead to premature ageing. Formulators love its silky texture and ability to improve product slip and after-feel in both lightweight serums and richer creams.
Key benefits
- Intensely hydrates and plumps the skin
- Strengthens the skin barrier
- Offers antioxidant protection
- Improves skin smoothness and softness
- Soothes and calms stressed skin
- Enhances skin elasticity and resilience
Best for
dry skin, dehydrated skin, mature skin, sensitive skin, dull or tired skin
Where it comes from
Red microalgae (most commonly Porphyridium cruentum) is a microscopic marine plant that grows in coastal waters and rock pools around the UK and other temperate seas. It is sustainably cultivated in controlled bioreactors rather than wild-harvested.