What Are Antioxidants, and Why Should You Use Them in Skin Care?

If you're a human being with anything close to a basic skin-care routine — and if not, we can help you with that — then there's a good chance you've used a facial product with any of today's most buzzy skin-care ingredients, like niacinamide or hyaluronic acid. Another popular one is antioxidants, which are often found in many products you use, but outside of knowing that they're supposed to be good for your skin, do you actually know what antioxidants are?

To help clear up any confusion, we asked a dermatologist to explain. Ahead, you'll learn what antioxidants for skin are, how to add them to your routine with facial serums, and more.

What Are Antioxidants For Skin?

"Antioxidants are molecules that neutralise free radicals in your body, which are unstable molecules that can damage to your cells," dermatologist Shari Sperling, MD, of Sperling Dermatology tells POPSUGAR. Free radicals naturally occur in the body, though they can also come from environmental factors like pollution, cigarette smoke, and other chemicals.

"Prolonged stress from free radicals can cause damage to your DNA, which can then lead to certain diseases and skin ageing," Dr. Sperling says. "Antioxidants can be found in some foods such as fruits and vegetables and plants, but you can also get antioxidants from skin products."

Types of Antioxidants For Skin

According to Dr. Sperling, antioxidants found in vitamins C, A, and E are effective and can be used topically on the skin. Vitamin A is also known as retinol, and even though it's a popular ingredient in many acne products, it can also improve the skin's elasticity, exfoliate, and prevent and fade sun damage.

After vitamin A is vitamin C, a skin-care hero that you can find in tons of serums, moisturisers, and eye creams.

"Vitamin C is a super antioxidant, which protects the skin from environmental damage and prevents premature skin aging associated with UV rays and pollution," Saira Vasdev, co-founder and medical director of Skin and Sanctuary, previously told POPSUGAR. "It penetrates deep into the skin's surface and acts to neutralise free radicals which are toxic to skin cells, as well as stimulating cell renewal and supporting new collagen synthesis. Visible benefits include brighter skin with improved texture, softening of fine lines and wrinkles, and increased firmness and elasticity."

Others, like ferulic acid and niacinamide (vitamin B3), can help to increase the skin's firmness and elasticity, reduce inflammation, and brighten dark spots.

How to Use Antioxidants in Your Skin-Care Routine

Antioxidants work best when they're paired with other products. "It is best to use a vitamin C serum (with A [and] E) in the morning and some even use it at nighttime too," Dr. Sperling says. For best results, you should use an antioxidant-rich product in your morning routine and follow it with a moisturiser and SPF.

— Additional reporting by Tori Crowther and Jessica Harrington