Rate My SPF

Carrageenan

What Carrageenan is & what it does

A seaweed-derived gelling agent that thickens and stabilizes formulas and adds a smooth, cushiony body. It also offers light hydrating, film-forming benefits.

Is Carrageenan safe in skincare?

Carrageenan is a widely used seaweed-derived thickener and is generally regarded as safe for use in topical cosmetics at typical levels. Most of the concerns raised about carrageenan relate to ingested forms, not skin application. As with any ingredient, those with sensitive skin can patch test first.

What does Carrageenan do in skincare?

Carrageenan is used as a thickener, gelling agent, and stabilizer. It helps give creams and gels their texture and keeps the formula from separating. It can also provide a smooth, cushiony feel on application.

Is Carrageenan natural or synthetic?

Carrageenan is natural in origin, extracted from certain species of red seaweed. It is purified for cosmetic and food use but starts from a marine plant source. This also makes it plant-based rather than animal-derived.

Sunscreens with Carrageenan

We rate 34 sunscreens that contain it, showing the top 10 by overall score:

← All ingredients