Do Hair Masks Expire? (When Should We Throw Them Away)

We all love hair masks, but how many times do we buy one to do as soon as we get home but simply chuck in the cupboard and forget about it (or is that just me?).

It’s easy to forget how long it’s actually been there.

So the question is, do hair masks expire?

This is a question that often confuses people, as it is not always clear when hair masks should be thrown away.

Like with most products, the shelf life is 12 months until it needs to be thrown away but is there a way to work out if your hair mask is really out of date?.

In this article, we will break down the confusion and help you decide when to discard your favourite hair treatment.

Hair Masks Expiration Dates and Shelf Life

Hair masks have an expiration date because the ingredients in the mask will eventually lose their potency. The shelf life for hair masks is 12 months, but if the mask is stored correctly, it can last longer than that.

To store a hair mask correctly, keep it in a cool, dark place away from direct sunlight or heat sources (i.e., stove).

Avoid storing hair masks next to products with strong odors such as perfume or cologne (or other cosmetics) because they will absorb these odors which may alter the smell of your hair mask. Keep hair masks out of reach of children and pets.

If a hair mask does not have a best before date, it should be discarded after 12 months.

However, if you are using a hair mask that has the best before date and you do not finish the entire jar or tube, it is important to follow the guidelines for use by date.

girl applying hair mask herself

Instructions for Use By Date

The use-by date is the date after which the hair mask should not be used. The use-by date is located on the bottom or side of the hair mask container.

If you have opened a hair mask, it is important to follow the instructions for how long it can be used after opening. Generally, hair masks can be used for 3-6 months after opening, but it is best to check the instructions on the hair mask container.

When you are finished with your hair mask, always make sure to reseal the container and store it in a cool, dark place.

Hair masks are an important part of hair care, but they can expire. By following the instructions for storage and use, you can make sure your hair masks last as long as they should.

If you have any questions about hair masks or their expiration date, please contact the manufacturer. They will be able to give you specific instructions for their product.

How To Tell If Your Hair Mask Has Expired

If you’re not sure whether your hair mask has expired, there are a few ways to tell. Let’s take a look at how you tell –

Smells Different

The first way to tell is if the hair mask smells different. If it smells rank or sour, it’s likely that the product has gone bad.

Texture Has Changed

If the hair mask has changed texture, it might be a sign that it’s expired. For example, hair masks often become thicker and more difficult to spread when they’ve gone bad.

Color Has Changed

Another way to tell if a hair mask has expired is by checking its color. If it’s turned a different color, or even black, it’s likely that it’s no longer safe to use.

Looks Curdled

If the hair mask looks curdled or lumpy, it’s another sign that it might be bad.

hair mask and brush

How To Extend The Life Of Your Hair Mask

If you want to extend the life of your hair mask, there are a few things you can do.

– Keep it in a cool, dry place

One way to keep your hair mask fresh is to store it in a cool, dry place. This will help prevent bacteria from growing and ruining the product.

– Don’t store it near heat sources

Another thing to avoid is storing your hair mask near heat sources. Heat can cause the product to spoil more quickly.

– Use clean hands

Another tip is to make sure you use clean hands when applying and taking off the hair mask. This will help prevent any bacteria from getting into the product.

– Don’t share jars

Lastly, don’t share jars with other people. This can increase the risk of bacteria spreading and ruining the product.

How To Make Your Hair Mask Last Longer

If you’re not ready to throw away your hair mask, there are a few ways to make it last longer.

– Don’t mix too much product at once

When you first start using the hair mask, only mix a small amount at first. This will help prevent the product from expiring sooner.

– Only use what you need

Also, try to use only what you need each time you apply the hair mask. This will help keep it fresh for longer.

– Don’t store it in the shower

Finally, don’t store your hair mask in the shower. This can cause it to become wet and expire more quickly.

What Happens If You Use an Out Of Date Hair Mask?

If you use an out of date hair mask, you could end up with a number of issues. For example, using a hair mask that’s past its expiry date can lead to irritation or an allergic reaction. Additionally, the product might not be effective if it’s expired.

It’s always best to check the expiration date on your hair mask before using it. By following the tips in this article, you can help make sure your hair masks last as long as they should.

Read Here: Does Hairspray Expire?


Although the expiration date is 12 months after opening, that doesn’t mean you have to toss it in the trash when it hits month 13. If the mask still smells okay, looks good and has a nice texture, go ahead and use it up!

But if you have any doubt, it’s always best to discard a product that’s been sitting around for too long.

By following the tips in this article, you can make sure your hair masks last as long as they should. By knowing how to store and use them correctly, you can avoid expiration dates and keep your hair looking and feeling its best.

So, do hair masks expire? The answer is a little complicated. Generally speaking, hair masks last between 6 to 12 months after opening.

Just be sure to keep an eye on any changes in how your hair reacts to the treatment.

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