The World Health Organization has Five Moments for washing hands: 1  before patient care. 2  after environmental contact. 3  after exposure to blood/body fluids. 4  before an aseptic task, and. 5  after patient care.
This means that you can use leftover sunscreen from one year to the next. Some sunscreens include an expiration date â a date indicating when they're no longer effective. Discard sunscreen that is past its expiration date. If you buy sunscreen that doesn't have an expiration date, write the date of purchase on the bottle and be sure to throw it out within three years. Also, discard sunscreen that has any obvious changes in color or consistency.
Question: How do you know if sunscreen has expired? I found a bottle of sunscreen under my cabinet from last year and don't know if it is still good. How do you know is sunscreen has expired? Answer: To determine if sunscreen has expired, first look for an expiration date on the label. Many manufacturers do print an expiration date on sunscreen. If there is no expiration date, you can always call the customer service number listed on the label. You can provide them with the codes that are printed on the bottle and they can tell you if it has expired.