Do Sheet Masks Expire - The serum the mask leaves behind is supposed to stay on your skin, not be washed away. Generally, masks expire in about one to two years from opening, depending on the active ingredients used. When do face masks expire? And remember, when it comes time to remove the mask, don’t rinse off. Before applying your sheet mask make sure you’re starting with a clean canvas by cleansing first. Clay masks may possibly dry out on the shorter end of that estimate, depending on the type of mask it is.
And remember, when it comes time to remove the mask, don’t rinse off. Generally, masks expire in about one to two years from opening, depending on the active ingredients used. Clay masks may possibly dry out on the shorter end of that estimate, depending on the type of mask it is. The serum the mask leaves behind is supposed to stay on your skin, not be washed away. Before applying your sheet mask make sure you’re starting with a clean canvas by cleansing first. When do face masks expire?