Have you found yourself with sunscreen from last summer again this year? Have you wondered if you can still use it or should you throw it away? Why is sun protection so important – and can old sunscreen really do more harm than good?
Or is it sunscreen from last summer still usable? Creams don't last forever.
Although many still look perfectly useful at first glance, they have a clear shelf lifeThis is often marked on the packaging – either with a date or a jar symbol indicating the number of months the product is safe to use after opening.
In most cases it is about period between 6 and 12 months.
Mineral cream formulations containing zinc oxide or titanium dioxide, are generally more stable than chemical ones. The latter are more easily damaged by heat, light or air, meaning that the protection becomes unreliable over time.
What happens if you use old cream?
UV filters, essential for skin protection, can break down, degrade or oxidize. The consequences can be very unpleasant – from uneven protection, to skin sensitivity, to serious damage caused by UV radiation.
The most common risks include:
– burns,
– faster skin aging,
– increased risk of pigment spots,
– long-term increased risk of skin cancer.
What does the condition of the cream say?
Old sunscreen can change its texture, color, or smell. If the contents separate into a watery and thick part, have an unpleasant or strange smell, or behave strangely on the skin when applied, it is likely no longer safe. While you may be tempted to use it again, the risks are too high.
Can you use it if you don't have another one?
If there is no other option, it is essential to carry out sensitivity test. Apply a small amount of sunscreen to the inside of your hand and wait a few hours. If there is no redness, rash, or itching, it may still be safe to use. But this should really only be a temporary solution, not a long-term practice.
How to store sunscreen properly?
If you want your sunscreen to last as long as possible, always apply it save away from direct sunlight and heat. A cool, dark place, such as a bathroom cabinet or drawer, is ideal. Close the container tightly after each application to prevent air and bacteria from entering.
