3. Using Expired Products

Holding onto skincare products past their prime can do more harm than good. Expired creams and serums may harbor bacteria, leading to irritation or breakouts. Their active ingredients also lose potency over time, making them less effective. Look for the open jar symbol on packaging, which indicates shelf life after opening (e.g., 6M for six months). Sunscreens especially should be replaced yearly, as their protective abilities degrade quickly. Regularly check and refresh your products for optimal results.