Yes, sunscreens are manufactured to remain stable and at original strength for a minimum of three years.
I have an old bottle of sunscreen from last year. Is it still good? Or should I throw it out? ... Some sunscreens include an expiration date — the date at which time the sunscreen is no longer effective. Discard sunscreen that is past the expiration date or is more than 3 years old.
www.mayoclinic.com/health/sunscreen-expire/AN01968 www.mayoclinic.com/health/sunscreen-expire/AN01968
Our beauty experts give advice about the shelf life of sunscreen. ... Sunscreen SPF Expiration Info ... Will my leftover sunscreen from last year still be effective?
www.cosmopolitan.com/hairstyles-beauty/how-to/sunscreen... www.cosmopolitan.com/hairstyles-beauty/how-to/sunscreen-expiration
Sunscreens are designed to remain at original strength for up to three years. This means you can use leftover sunscreen from one summer to the next.
http://www.thirdage.com/skin-nails/the-truth-about-tann...
anything can expire depending on the ingredients... however most things that expire usually have an expiration date on them... if they don't then they're usually at least good for a long time... either way it's probably better than nothing....
http://answers.yahoo.com/question/index?qid=20080817085...
Posted: 04/10/06 - 10:17 Post subject: does sunscreen 'expire' ... It does expire. I throw ours out every fall and then buy new in the spring. We go through a lot, but I never toss out more than 1/4 a bottle or so. I'm militant with the kids. Not so much with myself.
www.runningforums.com/ntopic42609.html
Sunscreen Tips ... Also see Tips from the Canadian Cancer Society about Shade from the Sun, Protecting Children from the Sun and Sunscreen Use ... Sunscreen's active ingredients do expire. If your bottle is two or more years old, throw it out. Expiration dates are usually on the bottom of the bottle.
www.hotelfun4kids.com/travelsafetytips/sunsafety.htm
Cancer Myth 3: You can prevent skin cancer by putting on one application of sunscreen at the start of each day. ... Most sunscreen products expire within two to three years, but you should check the expiration date on the container for the date it becomes ineffective.
health.discovery.com/centers/cancer/top10myths/myth3.ht... health.discovery.com/centers/cancer/top10myths/myth3.html
Health News - Does Sunscreen Have An Expiration Date? ... The zinc oxide in sunscreen will never expire. Zinc oxide is so stable you can make paint out of it. I'm not sure about sunscreen's other ingredients, but I assume it's a pretty durable product. Storing it in a cool, dark place prolongs its potency.
www.healthcentral.com/drdean/408/13251.html
> Can I still use sunscreen lotion that I bought last summer? Sunscreen does in some cases expire. Check on the bottle for an expiration date or you can call the; 800 number of the manufacturer. A dermatologist was on our local public radio station a few weeks ago and discussed this very topic.
www.cyclingforums.com/t46151.html