Dehydroacetic acid is an organic compound that usually comes in the form of an odourless white crystalline powder. It has potent anti-fungal and antibacterial properties, and is used in many skincare products as a preservative. Clinical tests have shown little to no evidence regarding the ingredient's toxicity and potential for irritation. We use this ingredient with care at a very low concentration (less than 0.6%) to help stop the growth of microbes on our products once they are exposed to air, keeping them stable and working at their best. Dehydroacetic acid is a synthetic chemical (no plant-based preservatives that meet our efficacy standards currently exist) that is considered to be a low hazard for human health and for the environment.

Other names: Dehydracetic acid, Methylacetopyronone, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione