Humectant

Plankton Extract

Reviewed by Kate · Last updated 18 Aug 2026

A marine species known as Thalasso plankton and derived

What Is Plankton Extract?

A marine species known as Thalasso plankton and derived from various algae, seaweed, or marine skeletons. There is no research showing plankton extract has any benefit for skin but, like most forms of algae, it can have moisture-binding properties.

Although that’s good, keep in mind plankton isn’t a miracle (not even a minor one) or a must-have ingredient for skin.

Clinical Evidence & References

Published Research

How widely it's used

0.4%
of skincare products contain this ingredient — placing it in the top 50% of most-used ingredients.
Most common in: Treatments Sunscreens

Regulatory information

Standardised cosmetic-ingredient identifiers used by regulators.

Show identifiers
INCI Name
PLANKTON EXTRACT
EC Number
293-445-7
Function
Skin Conditioning

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