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Lots of people use hair bleach to lighten their hair, but it’s crucial to know how long the product lasts to make sure it’s safe and works properly.
Have you ever wondered if hair bleach goes bad? If yes, when does it expire and how can you tell if it has gone bad?
This article will answer these questions and more, equipping you with the knowledge you need to use hair bleach confidently. Keep reading to find out.
When Does Hair Bleach Expire?
Just like other beauty products, hair bleach doesn’t last forever. How long it lasts depends on different factors, such as the brand, ingredients, and storage.
Usually, hair bleach lasts for about 1–3 years starting from when it was made and unopened. Once opened, hair bleach should be used within 6 months.
Moreover, if your hair bleach requires mixing two or more ingredients, the mixture should be used immediately without being stored for future use. (1)
Does Bleach Expire if Unopened?
Even if you haven’t opened it, hair bleach can still expire. If you’re not sure whether an unopened hair bleach has expired, you can check the expiration date on the packaging.
If there’s no expiration date, hair experts often say that it’s best to assume 3 years as the maximum duration to keep an unopened hair dye, after which it should be discarded.
Furthermore, inspect the packaging for any signs of damage or wear that could suggest the product has been exposed to environmental factors.
How to Store Hair Bleach Properly?
Follow these expert tips to store your bleach properly:
- Store hair bleach in a cool and dry place, away from direct sunlight or other heat sources. (2)
- Avoid storing hair bleach in places with high humidity, such as bathrooms. (2)
- Kep hair bleach out of the reach of children and pets.
By following these guidelines, you can help ensure that your hair bleach stays fresh and effective for as long as possible.
How Do You Know if Hair Bleach Is Expired?
Signs that hair bleach has expired are:
- One of the most obvious signs is the expiration date on the packaging. If the date has passed, it’s best not to use the product.
- The bleach has become thicker or thinner than usual.
- It has changed color or developed a strange odor.
- There are signs of mold or other growth on the hair bleach.
If you notice any of these changes, it’s best to not use the product.
What Are the Risks of Using Expired Hair Bleach?
A study shared how some women often continue to use expired cosmetics, which on analysis were found to have a very high amount of microbial contamination, which may be bad for health. The same may be possibly true for hair bleach. (3)
Using expired hair bleach can pose several risks:
- Expired hair bleach may not work effectively, meaning you may not achieve the desired results.
- Expired hair bleach may cause skin irritation or other adverse reactions, especially if you have sensitive skin.
- Expired hair bleach can damage your hair.
- Using hair bleach that has been exposed to environmental factors or has started to grow mold could lead to infections or other health concerns. (4)
Can I use hair bleach after it expires?
It’s not recommended to use hair bleach after it has expired.
Can hair bleach expire even if it’s unopened?
Yes, hair bleach can expire even if it’s unopened.
Should I throw away expired hair bleach?
Yes, it’s best to throw away expired hair bleach.
Can I donate expired hair bleach to charity?
It’s not recommended to donate or share expired hair bleach.
Hair bleach has an expiration date, and it’s crucial to use it before it goes bad to make sure it’s safe and works well.
Even unopened hair bleach can expire, so it’s important to check the expiration date and store it properly.