Nevada State Board Of Cosmetology - Advanced Esthetician Practice Exam

Labeling chemical peel products with an expiration date is a safety and regulatory requirement meant to protect clients and ensure the product works as intended. Peels contain active ingredients whose strength, pH, and formulation potency can change over time. Expired products may be less effective or more irritating, and there’s a greater chance of contamination or degraded preservatives once past their shelf life. A clear expiration date on the label helps you confirm the product is still within its safe-and-effective window before use. Relying on brand color is not enough because color can vary between batches and brands, and it does not indicate potency or safety. Saying labeling isn’t required or that expiration dates are optional would violate safety standards and professional practice.