When you think of acids on the skin, the most popular one is probably salicylic acid, which is good for oily acne prone skin. Does that mean people with dry dull skin should stay away from acids? Not necessarily, this is where lactic acid should be used. Not only does it exfoliate the skin, but it also attracts water molecules. This type of exfoliation is called chemical exfoliation because you aren’t rubbing off the outer layer of skin but simply applying an acid that breaks it down. Not only does this rejuvenate the skin but this type of hydroxy acid makes your skin super soft as well. It’s great for acne and even wrinkles. You may have already guessed that milk contains lactic acid, but it’s actually the sour milk that it’s derived from. 

Another benefit of Lactic Acid is the lightening of dark patches. For this to actually make a difference make sure the product has at least 5% of the ingredient. Are you wondering if you can just let your milk spoil so you can put it on your skin? Although this worked for Cleopatra back in the day, we recommend you either go to a dermatologist or find an at home kit depending on how strong of a peel you want. Make sure to be careful when out in the sun and if you experience any irritation such as peeling, don’t overdo it.  

Aline Agopian