The expiration date on any cosmeceutical product is very important – and perhaps especially so for sunscreens. If used past the date of expiration on the product, then the results may be less than expected. This is especially important for photoprotection and decrease in skin cancer risk expected from sunscreens. Always check the expiration date on the container before using the product. The expiration date is usually within two (2) to three (3) years of manufacture for skin care products.