Red Microalgae (Porphyridium cruentum)
Red Microalgae (Porphyridium cruentum) is a nutrient-rich marine ingredient prized in British skincare for its ability to deeply hydrate and protect the skin. Naturally rich in polysaccharides, antioxidants and essential fatty acids, it helps create a breathable, invisible shield that locks in moisture while soothing the complexion.
How it works in skincare
In cosmetics and skincare, Red Microalgae works by forming a flexible, film-like matrix on the skin’s surface that reduces transepidermal water loss while allowing the skin to breathe. Its high polysaccharide content delivers immediate and long-lasting hydration, while naturally occurring antioxidants help shield the skin from environmental stressors. Formulators value its silky texture and ability to improve product slip and after-feel in creams, serums and masks.
Key benefits
- Intensely hydrates and plumps the skin
- Strengthens the skin’s moisture barrier
- Soothes and calms irritation
- Provides antioxidant protection against daily environmental stress
- Improves skin softness and smoothness
- Enhances product texture and slip
Best for
dry skin, dehydrated skin, sensitive skin, mature skin, dull skin
Where it comes from
Red Microalgae (Porphyridium cruentum) is a microscopic marine plant cultivated from natural seawater sources. It is sustainably grown in controlled bioreactors rather than harvested from the wild.
Products with Red Microalgae (Porphyridium cruentum)
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Red Microalgae (Porphyridium cruentum) than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.
We haven’t matched this ingredient to a product ingredients list yet — check back as more pages are enriched.