Spoiled milk probably sounds like the last thing you want to put on your face, right? Well, it turns out it’s actually pretty beneficial. Yet another addition to the bizarre (yet effective) skincare ...

Lactic acid build-up causes a burning sensation in your muscles during intense exercise. Lactic acid is not responsible for sore muscles the day after exercise, contrary to popular belief. To get rid ...

Skin care can be an investment. When it comes to the products you're slathering all over your face, you want to ensure you're getting an efficacious formula that's suitable for your individual skin ...

Retinoids help stimulate a turnover of skin cells which, in turn, unblocks the pores, helps reduce inflammation and oiliness ...

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If you need a complete crash course on glycolic acid and how it works, we’ve got you covered, but for a quick refresher: “Glycolic acid is an alpha hydroxy acid (AHA) that gently dissolves the bonds ...

Lactic acid is often vegan, but this is not always the case, as its sources include dairy products and meat. It occurs naturally in some foods, but manufacturers may add it to certain foods to extend ...

Made from the bacterial fermentation of sugar, lactic acid appears as an additive in vegan foods ranging from sourdough bread to soy sauce. This bacteria gives food its signature sour taste and acts ...