In November 2019 researchers from the Cosmetic Ingredient Review Panel in the USA published their safety assessment of Avena sativa (oat)-derived ingredients. These ingredients are used in cosmetics as abrasives, antioxidants, skin conditioning agents, absorbents, and bulking agents. The Panel reviewed relevant studies related to these substances. The reviewers stated that as the finished product formulations may contain multiple botanicals, each containing the same substances of concern, manufacturers of cosmetics are advised to be aware of these substances to avoid them reaching levels that may lead to sensitization or other adverse effects. The Panel stated that the cosmetics industry should continue to use good manufacturing practices to limit impurities and concluded that all but one of the Avena sativa (oat)-derived ingredients are safe as cosmetic ingredients when they are used for the previously described purposes and at levels so that the product is non-sensitizing. However, the Panel could not reach a conclusion as to the safety of Avena Sativa (Oat) Meristem Cell Extract as the existing information was deemed to be insufficient.
Becker LC et al. Safety Assessment of Avena sativa (Oat)-Derived Ingredients As Used in Cosmetics. Int J Toxicol. 2019 Nov/Dec;38(3_suppl): 23S-47S.