What Does Sodium Hydroxide Do For Your Skin?

Sodium hydroxide is also known as lye, and it is an ingredient that is commonly found in soaps and other cleansing products, writes Cosmetics Info. It is a known irritant, and is usually only seen in its pure form in the process of manufacturing. However, if you're handling it, you should know that sodium hydroxide in its pure form is very caustic, and can cause skin and eye irritation, according to RusticWise. It can also cause respiratory problems if inhaled, and can be very poisonous when ingested. Products with sodium hydroxide can also give you rashes, hives, irritation and itching.

Despite that, it doesn't mean that skincare products with sodium hydroxide are totally unsafe. For the most part, skincare products usually contain sodium hydroxide to balance their pH and keep the product from damaging your skin's acid mantle.

According to Cel, if you have sensitive skin, you should steer clear of skincare products that contain sodium hydroxide — or at least, always run a check by using a tiny bit of the product on a part of your body other than your face, and wait for 24 hours to see how your skin would react to it and if there are any side effects.