How To Tell If Your Sun Cream Has Expired

How do you actually know if that old bottle of sunscreen will still protect you?

Most Popular

We spoke with cosmetic dermatologist, Dr Mervyn Patterson from Woodford Medical, to find out everything you need to know about suncream going bad: How long does it last? And most importantly, how do you know if it's expired? 

Firstly, does suncream expire?

"Most sunscreens do expire and because of this a lot should come with an expiry date stamped on the box" explained Dr Patterson. "It is very important not to ignore this as the chemicals do degrade and may well lose their protective effect."

Advertisement - Continue Reading Below

So that's all well and good, but what if you've thrown away the box – and with it – the expiration date? As a rule of thumb Dr Patterson says most sun tan lotions will last for 'at least a year of use'.

How to tell if it's gone bad...

Most Popular

The warning signs to look for, are smell and texture. If your sun protection has expired the formula will have 'started to separate'.

"If it's looking different in terms of texture or smell from when you first bought it, then things may not be well with the product. In this case, it's best to simply discard."

What happens if you use expired sun cream by accident?

It's likely you'll burn and the formula itself could trigger a reaction from your skin.

"If a sunscreen product has deteriorated, then in theory there is a risk of chemical alteration of the ingredients."

This means there's a greater likelihood of 'contact reactions' with the skin, which means it could be irritating. There will also be a fall in sun protection, hence the burning.

So what causes it to expire? These are the triggers to avoid...

Most sun creams have been designed to withstand a lot,

"However if sunscreen containers are left in direct sunlight even the most stable of formulations can degrade." Dr Patterson continues, "Storage is important. Leaving your sunscreen baking in the sun, whether it's on the beach, or in the back window of your car, may trigger degradation of the formula, and that renders the product useless."

The best place to store it? Somewhere shaded, preferably cool and dry.

Via:

What do you think?

Life
Share
Twinkle Khanna Speaks About Workplace Sexual Harassment
Safe to say that Mrs. Funnybones did not find it funny AT ALL
Life
Share
5 Easy-Peasy Workouts You Can Do WITHOUT Getting Out of the Bed
Thank us later!
Life
Share
5 Easy Ways to Get Rid of That Spare Tyre Around Your Waist
Know more ways to beat the bloat and get a toned waist.
Life
Share
A Cosmo Girl's Guide To Doing Dubai Shopping Festival Right
#ShoppingIsMyCardio
Life
Share
This One Crazy Act Could Actually Mean You are a Genius
Time to tell the world what you always knew
Life
Share
5 More Celeb Statements on the Ugly Nepotism Spat Between Kangana Ranaut and Karan Johar
They seem to be with Karan on this.🙇
Life
Share
Yet Another Case Of Uber Driver Harassing a Delhi Girl is Going Viral...
"Madam, where do you stay and where are you from? Do you stay alone?"
Life
Share
10 People Who Look Like Disney Characters IRL
Dope stuff!
Life
Share
6 Easy and Effective Ways to Cut Down Face Fat
Chiseled cheekbones, here I come!
Life
Share
Here Are the Best Health and Weight Loss Tips Based on Your Zodiac Sign
No more excuses.