Rate My SPF

Cladosiphon Okamuranus Extract

What Cladosiphon Okamuranus Extract is & what it does

Cladosiphon Okamuranus Extract is obtained from okinawa mozuku, a brown seaweed cultivated in Japan. It is a notable source of fucoidan, a sulfated polysaccharide, and is used in skincare as a conditioning and humectant ingredient that helps the skin hold moisture. In a sunscreen formula it typically supports a soothing, hydrated skin feel rather than contributing to UV protection.

What does Cladosiphon Okamuranus Extract do in skincare?

It works as a conditioning and moisture-binding ingredient. Derived from okinawa mozuku seaweed, it is rich in the polysaccharide fucoidan, which helps the skin feel hydrated and smooth. It is typically used to support comfort and softness rather than as a UV filter.

Is Cladosiphon Okamuranus Extract vegan?

Yes, it is derived from brown seaweed, which is a plant-like marine organism, so the ingredient itself contains no animal-derived material. Whether a finished product is fully vegan depends on the other ingredients and the brand's overall sourcing.

Is Cladosiphon Okamuranus Extract safe?

It is used in cosmetics as a skin-conditioning seaweed extract and is generally well tolerated. As with any botanical or marine extract, individual sensitivities are possible. A patch test is reasonable if your skin reacts easily.

Sunscreens with Cladosiphon Okamuranus Extract

We rate 7 sunscreens that contain it:

← All ingredients