They’re the miracle tools used to fight acne, wrinkles, age spots, scarring, and uneven skin tone. But with so many acids on the market, it can seem overwhelming to remember which to use — and for what — and which products to buy. Before all that, you have to know where to start.
The Most well-known Acne Cleanser
Salicylic acid has been around for a long time. It’s well-known for its ability to exfoliate the skin and keep pores clear, which helps reduce acne. You’ll find it in serums and cleansers at concentrations between 0.5 and 2 percent, as well as in spot treatments for breakouts.
Salicylic acid is also used in higher concentrations as a peeling agent for treating acne, acne scars, melasma, sun damage, and age spots in dermatology clinics. It’s so effective that it’s used in wart and corn removal solutions, although it’s still safe to use in pigmentation-prone dark skin. Since it’s related to aspirin (acetylsalicylic acid), it also has anti-inflammatory properties.
The Fantastic anti-aging Weapon
Glycolic acid is the most popular alpha-hydroxy acid (AHA) used in skin care. It comes from sugar cane, and is the smallest AHA, so it’s the most effective at getting into the skin. Glycolic acid is a fantastic anti-aging agent that seems to do it all.
It’s very effective at exfoliating skin and reducing fine lines, preventing acne, fading dark spots, increasing skin thickness, and evening out skin tone and texture. So it’s no surprise that you’ll find it in many cult skin care products. It’s commonly found at concentrations below 10 percent.
Much like salicylic acid, glycolic acid is also used in peels for treating acne and pigmentation, sometimes in tandem with microdermabrasion or micro-needling. However, use of glycolic acid increases sun sensitivity even when it’s not on the skin, so you need to use sunscreen as well to prevent extra sun damage.
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