How long does sunscreen last?

Most sunscreen products last up to three years unopened.

Sunscreen can remain effective for up to 3 years once it's been opened. Generally, sunscreen can last 6 to 12 months after opening and varies per product. Be sure to check the product packaging and follow directions for the best results.

Skincare ingredients in sunscreen break down and deteriorate over time. This process can be sped up by unfavourable storage conditions, such as heat. This can result in the product becoming ineffective before its stated expiration date.

Here are a few ways to store your sunscreen to ensure it lasts up to its expiration date:
1) Make sure it's stored in a dark place to prevent UV rays from damaging it.
2) Avoid exposing your sunscreen to heat which can cause the formula to separate and become ineffective.
3) As with heat, moisture can cause sunscreen to separate and even cause mould growth. Be careful with storing your sunscreen in the bathroom since the damp air and fluctuating humidity can cause your sunscreen to go off.

Skincare ingredients in sunscreen break down and deteriorate over time. This process can be sped up by unfavourable storage conditions, such as heat.

Your sunscreen package may have a jar symbol with the lid open to show when your sunscreen will go out of date. The open jar symbol will have a number and an ‘M’ on it which refers to how long the sunscreen will last once opened. For example, at the back of the NIVEA Sensitive Sun Lotion, you’ll see a ‘12M’ on the open jar symbol. Hence, this means that the sunscreen will last for 12 months once opened.

Lastly, an hourglass symbol on the packaging means that the product will last for 30 months from its manufacturing date, opened or unopened.

For example, if you notice a change in consistency such as it’s become more watery or clumpy, then it’s time to replace your sunscreen. Moreover, if you notice a change in smell or colour, it’s advised that you do not use the products and purchase a new one.

Here are 5 reasons why it’s important to wear sunscreen:

1) Sunscreen is effective against harmful UV rays from the sun that can lead to sunburn. Continuous sunburn can lead to other skin issues like premature wrinkling or even cancer.
2) Wearing sunscreen helps to prevent inflammation and redness caused by prolonged UV ray exposure.
3) Applying SPF to the skin reduces the harmful effect of the sun and helps in reducing the risk of skin cancer.
4) Frequent exposure to the sun can cause hyperpigmentation as it triggers the production of melanin that gives the skin its colour. Hence, regular use of sunscreen can help prevent hyperpigmentation.
5) Sunscreen protects the Collagen and Elastin produced by the skin to remain healthy and smooth, preventing premature ageing.