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Quick answer: How long skincare lasts depends on the product, how you use it and where you keep it. There’s no fixed rule for most cosmetics, but sunscreens usually carry an expiry date and mascara is usually discarded after two to four months. Throw away any product that smells, looks or feels different.
Your moisturizer has no alarm clock. It never beeps when it goes off. It just changes quietly, a little at a time, and you keep using it.
That’s the problem with how long skincare lasts: there’s rarely a clear rule. This guide shows what the official sources say, what they don’t say, and a simple habit that works for any product. If you need help choosing products first, start with our guide to the best skincare products in Pakistan.
Do skincare products expire?
Not always, and not by law everywhere. The US Food and Drug Administration says no U.S. laws or regulations require cosmetics to have specific shelf lives or expiration dates on their labels. Manufacturers are responsible for making sure their products are safe.
Drugs are different. The FDA notes that products such as sunscreens and acne treatments are drugs under US law, and they must carry expiration dates. I couldn’t verify the exact labelling rule in Pakistan, so treat a printed date as the maker’s guide, and use the checks below when there’s no date.
What makes skincare go off?
According to the FDA, products break down for several common reasons:
- Dipping fingers into a jar adds bacteria and fungi.
- Preservatives can break down over time, which lets bacteria and fungi grow.
- Mixtures of water and oil can separate.
- Moisture, such as in a bathroom, makes it easier for bacteria and fungi to grow.
- Products can dry out, harden and crack.
- Heat, sunlight and air can change colour and texture, and cause smells.
How long skincare lasts: what the sources say
| Product | What the sources say | What I’d do |
|---|---|---|
| Mascara and eye-area products | The FDA says eye-area cosmetics tend to have shorter shelf lives, and manufacturers usually recommend discarding mascara two to four months after purchase | Write the date on the tube and replace it within that window |
| Sunscreen | Sunscreens must carry expiration dates under US rules, and AAD advice is that an expired product may not protect you | Follow the printed date, and replace it sooner if it smells or separates |
| Creams in jars | No official number. Fingers add bacteria and fungi | Use a clean spatula or clean fingers, and replace it if it changes |
| Cleansers, serums and the rest | No official number | Use the date-it-and-check method below |
Many blogs give exact months for every product. I couldn’t find an official source for those numbers, so I’ve left them out.
For sunscreen, our guide on how to choose sunscreen explains the label, and the AAD’s advice on applying sunscreen notes that expired products are one reason people still get burned.
What is the date-it-and-check method?
Here’s a habit I like. It’s my own method, so treat it as a suggestion. It works for every product, even when there’s no expiry date.
- Date it. Write the opening date on the product with a marker or a small sticker.
- Check it. Every time you use it, run the three-S check below.
- Store it. Keep it cool, dry and closed.
- Decide. If you see any red flag, stop using it.
| The three-S check | What to look for |
|---|---|
| Smell | A new sour, sharp or “off” smell |
| Separation | Water and oil that split into layers and don’t mix back |
| Surface | A change in colour, clumps, dark spots or a dry crust |
The FDA’s advice on using cosmetics safely is to throw away a product if its colour or smell changes. That applies to a new product as much as an old one.
How should you store skincare in Pakistan’s heat and humidity?
Heat and moisture are the quiet enemies. The FDA advises against leaving cosmetics where they’re exposed to heat, such as in a hot car, because heat can make preservatives break down and let bacteria and fungi grow faster.
- Keep products in a cool, dry drawer, not on a steamy bathroom shelf.
- Keep them away from sunny windowsills and hot rooms.
- Close lids tightly, and wash your hands before you dip into a jar.
- Don’t add water to a product to make it last longer.
In sticky months, our guide to skincare for humid weather has more tips. And when a parcel arrives in summer, check it before you pay. Our guide to cash on delivery for beauty products explains how.
Why should you ask sellers for the expiry date?
Because you can’t see the date when you shop online. The FDA warns that products sold at flea markets or re-sold over the internet may be past their shelf life, already used, diluted or even counterfeit.
So ask any online seller, including us, for the batch code and the expiry or manufacture date, and for a clear photo of the back label. Our guide to identifying original cosmetics in Pakistan has the full checklist, and our skincare ingredient list guide shows how to read the rest.
What should you do with old skincare?
Throw it away. Don’t “use it up” on your body, and don’t give it to someone else. If you ever get an eye infection, the FDA says to stop using all eye-area cosmetics, throw away the ones you were using at the time and talk to your health care provider.
Before you start a replacement, patch test it first, so one reaction doesn’t send you back to the start. If you’re also checking your makeup, our makeup starter kit guide explains why you shouldn’t buy mascara in bulk.
FAQs about how long skincare lasts
Does skincare expire?
Yes, in practice. Products can break down over time, even if there’s no date on the pack. The FDA says no U.S. rule requires an expiry date on most cosmetics, but sunscreens are drugs and must carry one.
How can you tell if skincare has gone bad?
Use the three-S check: smell, separation and surface. A new sour smell, layers that won’t mix back, a change in colour, clumps or dark spots are all reasons to throw it away.
How long does mascara last?
The FDA says manufacturers usually recommend discarding mascara two to four months after purchase. If it dries out, throw it away. Never add water or saliva to moisten it.
Does sunscreen expire?
Yes. Sunscreens carry an expiration date under US rules, and an expired sunscreen may not protect you properly. Follow the printed date, and replace it sooner if the colour or smell changes.
Can you use skincare after its expiry date?
It’s safer not to. After the date, the preservatives and active ingredients may have broken down. If a product is past its date or looks, smells or feels different, throw it away.
Where should you store skincare in summer?
In a cool, dry drawer, away from sunlight and steam. Avoid hot cars and bathroom shelves, keep the lids closed, and wash your hands before you use jars.