Phaeodactylum Tricornutum Extract
Phaeodactylum tricornutum extract is a sustainable marine ingredient derived from a microscopic diatom. Rich in omega-3 fatty acids, antioxidants and natural polysaccharides, it is increasingly used in UK skincare for its hydrating and protective properties. It offers a clean, ocean-derived alternative to many synthetic actives.
How it works in skincare
In cosmetics and skincare, Phaeodactylum tricornutum extract functions as a potent moisturiser and antioxidant. Its unique lipid profile and exopolysaccharides help reinforce the skin’s barrier, reduce transepidermal water loss and shield against environmental stressors such as pollution and blue light. Formulators value it for its ability to deliver lightweight hydration while supporting a smoother, more resilient complexion.
Key benefits
- Helps strengthen the skin barrier
- Provides lightweight, long-lasting hydration
- Offers antioxidant protection against daily environmental stress
- Helps improve skin smoothness and softness
- Supports a more resilient, healthy-looking complexion
- Suitable for soothing and calming sensitive skin
Best for
dry skin, sensitive skin, mature skin, dehydrated skin, urban skin exposed to pollution
Where it comes from
Phaeodactylum tricornutum is a naturally occurring marine diatom (microscopic algae) cultivated in controlled bioreactors. The extract is sustainably sourced from these single-celled organisms rather than wild harvesting.
Products with Phaeodactylum Tricornutum Extract
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Phaeodactylum Tricornutum Extract than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.
- Charlotte Tilbury Airbrush Flawless Stays All Day & Night Foundation 30ml - 5 Warm Charlotte Tilbury
- Charlotte Tilbury Airbrush Flawless Foundation 30ml - 9 Cool Charlotte Tilbury