Agar is an algae-based natural ingredient that serves as a thickener in cosmetics.

References for this information:

IOP Conference Series Earth and Environmental Science, February 2020
Marine Drugs, November 2018, pages 1-41
Carbohydrate Polymers, July 2013, Volume 96, Issue 1, pages 71-81
Biomedical Materials, November 2008, Volume 3, Number 4

See algae

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