Why do products expire?

Just like food, skin care products also expire.

As soon as you open a new skin care product, it is exposed to air, light
and temperature changes that affect its formulation. Using skin care products past their expiration can lead to loss of efficacy, and most importantly skin
irritation. It’s better to be safe than sorry when it comes to your skin, so if
you suspect that a product has gone bad, throw it out.

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