Sea Cucumber Extract
INCI: SEA CUCUMBER EXTRACT
Reviewed by Kate · Last updated 14 Aug 2026
Marine-derived peptides and polysaccharides that support skin's antioxidant defences
Best For Skin Types
All, Dry, Sensitive, Mature
Addresses
Usage Frequency
Daily
What Is Sea Cucumber Extract?
Sea cucumber extract is derived from a marine invertebrate and contains a complex mixture of bioactive compounds, including peptides, polysaccharides, and phenolic compounds. These naturally occurring molecules are thought to work primarily through antioxidant and skin-conditioning mechanisms.
The extract functions as a skin protectant and conditioning agent, helping to support the skin's natural defences against environmental stressors and oxidative damage. It is typically used in formulations at low concentrations as part of a broader skincare approach.
How It Works
Sea cucumber extract contains bioactive peptides that exhibit antioxidant properties. These work by neutralising harmful free radicals and reactive oxygen species that form when skin is exposed to environmental stressors, UV exposure, and pollution. By reducing this oxidative load, the extract may help protect skin cells from damage to their DNA and mitochondria.
Additionally, the polysaccharides present in the extract support skin hydration and act as humectants, helping to bind water to the skin's surface. Together, these components work to condition the skin and support its natural barrier function.
Clinical Evidence & References
Research on sea cucumber extract shows promise for antioxidant and skin-protective effects. In-vitro studies have demonstrated that low molecular weight peptide extracts can protect skin cells from oxidative DNA damage and support cell migration and wound healing processes under oxidative stress conditions.
However, clinical evidence in human subjects remains limited. Most studies to date have been conducted in laboratory or cell-based settings rather than on living skin. Further research would help establish the extent of these benefits when the ingredient is applied topically in finished formulations at typical concentrations.
Published Research
How to Use
Sea cucumber extract is typically incorporated into serums, creams, and targeted treatments. It works well as part of a comprehensive skincare routine alongside other antioxidants and hydrating ingredients. There is no specific timing requirement; use according to the product instructions and your skin's tolerance.
Safety & Precautions
Frequently Asked Questions
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