AHAs (Alpha Hydroxy Acids) and BHAs (Beta Hydroxy Acids) are chemical exfoliants commonly used in skincare products. These acids have a limited shelf life and can expire over time. The expiration date of AHA and BHA products depends on various factors, including the formulation, packaging, and storage conditions.

Typically, most skincare products have a shelf life of 1-3 years. However, AHA and BHA products tend to have a shorter shelf life due to their active nature. On average, these products can last for about 6-12 months after opening, but it's always best to check the specific product's packaging for the recommended expiration date.

It's important to note that the efficacy of AHA and BHA products can diminish over time, especially if they are not stored properly. Exposure to air, sunlight, and high temperatures can accelerate the degradation of these acids, reducing their effectiveness. To ensure the longevity and efficacy of your AHA and BHA products, it's crucial to store them in a cool, dark place and tightly close the packaging after each use.

If you notice any changes in the color, texture, or smell of your AHA or BHA product, it's a sign that it may have expired or become less effective. In such cases, it's best to discard the product and purchase a fresh one to ensure optimal results and minimize the risk of skin irritation or adverse reactions.