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Does Hair Dye Expire? 5 Signs Tells Your Dye Is Expired

We’ve all done it: you buy hair dye, promptly forget about it, and it sits on a shelf for months until you finally stumble across it while looking for band-aids, and decide to color your hair right that minute because it’s cocktail-o’clock and it seems like a good idea.

You never stop to question, “Does hair dye expire? Should I seriously be putting this on my head?” You’re more apt to think, “What’s the worst that could happen?”

Oh, my friend, you don’t want to even contemplate the very worst thing that can happen—but you need to, especially if you’re a fan of frequent color changes.

Can Hair Dye Expire? Read on

First of all, here are the hard numbers: most hair color brands state that an unopened tube or bottle of hair dye is good for three years.

Some companies swear that their product has an unlimited shelf life, but I personally find that unbelievable and don’t want to experiment to see if it’s true.

Now, that’s for unopened dye. Let’s talk about open containers of color.

Does Hair Dye Expire after Opening It?

Surely, at least once, you’ve ended up with hair dye left in the bottle and been loathe to throw it away, right?

So, does hair dye expire after opening it? Yup. The basic school of thought is that hair dye expires 1-2 years after opening it. Mind you, that’s for professional colors.

Drugstore brands and cult products such as Manic Panic likely go bad much more quickly. It’s not hard to tell if you’re dealing with over-the-hill hair dye. Extreme changes to the color of the product are a dead giveaway.

You might also notice a strong or unpleasant odor after opening the container. Sometimes, the expired dye will also separate. It looks murky as if it needs to be shaken or stirred. At that point, just chuck it.

Signs of Expired Dyes

If you don’t see an expiration date on the hair dye packing, there are several ways you can tell if it has expired.

Cracked or Leaking Bottle

Signs of Expired Dyes - Cracked or Leaking Bottle

A cracked bottle is a sign that the hair dye is old or has been exposed to the elements, and that will change its efficacy. Chances are if there is a crack, then there’s a leak, so don’t use it if you see any dye on the outside of the bottle.

Also, if the packing the hair dye came in is dented or the bottle itself is swollen, then the hair dye itself could be damaged.

Open Bottle

Whether you purchased the hair dye from a discount store or you previously used the hair dye and mixed it with another hair coloring product, never use an open bottle of hair dye.

Even hair dye that has been mixed with something else should be used within a few hours or at most a few days.

Unusual Consistency

Signs of Expired Dyes - Unusual Consistency

Hair dye should be the consistency of a smooth liquid, so if you see lumps (like you see in cake batter), skip using it. Seeing lumps in hair dye is a sign that the dye has been exposed to outside elements and it won’t work the way it’s supposed to. You shouldn’t have to stir hair dye.

Additionally, do not use hair dye if it has ‘separated’ and you see a film on top. You can be sure the dye is okay to use before application by squeezing out a little to check its consistency.

Nasty Smell

These days, most hair dyes are made to smell pretty nice or will otherwise at least have a slight ammonia smell. You’ll know your hair dye has expired if the smell is obviously foul and similar to spoiled food, such as bad eggs.

Burning Sensation

Hair dye should never burn when you apply it to your head. If you start to rub it into your hair and feel it burning on your scalp, immediately stop and wash it out, and discard the hair dye.

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Side Effects of Expired Hair Dye 

If you dye your hair anyway, then you have to own the consequences. Before taking the risk, maybe you need to hear about some of the worst expired hair dye side effects.

#1: Is Green Your Color?

green color hair dye

You know how chlorine can turn bleached hair green? Well, expired hair dye can do the same thing, and it doesn’t even matter if your hair is bleached.

Using dye once it’s expired changes its chemical makeup—and the way it reacts with your hair. Dark green locks are one of the most frequent complaints people have after taking their chances with expired hair color.

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#2: Color Roulette

colorful hair dye

Green hair isn’t the only color concern associated with a dye that’s past its prime. You really have no way of knowing what color you’ll end up with after the application.

It’s possible that you’ll end up with no change whatsoever—the dye might be entirely ineffective. Then again, it could also produce a color that’s totally different from the shade on the box.

#3: Feel the Frizz

curly hair dye for women

Hair dye that passes its use-by date can be dangerous, not just inconvenient. It can cause serious damage to your hair. After you rinse, you may end up with a frizzy mess that either needs intense TLC or a big chop.

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#4: On Fire

No joke. The risk of burning your scalp is one of the worst expired hair dye side effects imaginable. And not only can expired dye scorch your tender scalp, but it can also lead to hair loss. Is it worth the risk?

#5: Fade Away

 black brown hair dye

Lastly, expired hair color isn’t as strong, intense, or pigmented. Even if you end up with the color you wanted in the first place, it might not last long.

Expired dye tends to fade even faster than fresh color. Then you’ve wasted time and risked your hair for nothing, essentially.

FAQs

When does hair color expire?

Hair dyes generally expire after three years, so make sure you use up your old ones before buying new ones.

If you’re unsure about whether or not a particular box of hair dye has expired and there is no expiration date on the product, you’ll have to open it and do a little detective work.

How to tell if hair dye is expired?

When dealing with hair dye that has been opened, it’s probably been contaminated by fungi or bacteria and needs to be tossed.

Some of the signs of expiration might be a strong smell that is not like the original ammonia smell, caking around the lid, streaks of liquid or color, or separation of the product.

Why shouldn’t I use expired hair dye?

If you use old hair dye, your hair may end up looking green. Or maybe the dye will give you a darker shade. Perhaps it won’t do anything at all.

How to dispose of hair dye?

If it’s just a small amount, wash it down the sink. If it is more, look through the instructions to see if the manufacturer suggests how you can dispose of it.

How to make the shelf life of hair dye longer?

To extend the shelf life of your hair dye, don’t open the package. When you open the box, you expose the product to light, which can start the process of oxidation.

And definitely don’t open the containers inside the packaging, as it will then be exposed to light, air, and bacteria.

For how long can I keep mixed hair dye?

Hair dye that’s already been mixed should be used immediately. Anything you don’t use should be discarded. If the dye isn’t mixed yet, you can keep it for the next dye session, but not for months and years. 

Honestly, what do you save by using expired hair dye? A few bucks? Don’t chance it.

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Rosed

Friday 26th of August 2022

Thanks for information. I just checked a L’Oréal excellence hair color batch code and it said the product was produced on May 2018. Should is still use it?

Daisy

Monday 17th of February 2020

I have a tube of socolor matrix that looks metallic and is seeping through the metal crease of the tube that wae folded over and over too many times... Is that ok?

Nida

Wednesday 12th of February 2020

Well now that I have used expired hair dye coz it had liquid substance at top and I am experiencing worst ever hair fall. What to do ?????? Concerned n dippressed. Help me

Leesa j.

Monday 1st of October 2018

Thank you for this article!! Was just about to be a dummy and use some leftover color.. I've done it once in the past.. but I remember that my hair did get really dried out.. I must have just "blocked it out".. lol- until today..👍😂👸 Thanks!!

Olivia

Tuesday 2nd of October 2018

Welcome, Leesa. Yes, it's always best to avoid such expired dye as your hair is much precious than a couple of dollars right?

Lil

Sunday 11th of February 2018

I have Revelons that don't put expiration dates on their boxes.

That's a disservice to the consumer.

Olivia

Wednesday 23rd of May 2018

Totally agree with you. The expiration date should be mentioned clearly on the hair dye to avoid any confusion.

Comments are closed.