What are vitamin C's Benefits for the Skin?

Rosie Petrillo holding two halves of a sliced orange in front of her eyes, resembling playful "orange glasses."

In short, everything.

  • For one, vitamin C promotes collagen production, which has the potential to thicken the dermis, diminish fine lines, and is essential for firm, youthful skin.

  • In addition, vitamin C is an antioxidant, meaning it protects skin cells from damaging free radicals caused by UV exposure.

  • It also inhibits melanin production in the skin, which helps to lighten hyperpigmentation and brown spots, even out skin tone, and enhance skin radiance.

  • Finally, vitamin C helps to repair damage from sun exposure and collagen loss by encouraging healthy cell turnover and regeneration.

Vitamin C's antioxidant properties (ascorbic acid) and role in collagen synthesis make it a vital molecule for skin health.

Dietary and topical ascorbic acid have beneficial effects on skin cells, and some studies have shown that Vitamin C may help prevent and treat ultraviolet (UV)-induced photodamage.

Traditionally, topical Vitamin C products contain L-ascorbic acid, the “grandparent” form of the ingredient, but it is also famously unstable.

How to Use Vitamin C Effectively

  1. Choose the Right Formulation
    Serums are the best vitamin C skin care products because they are more effective at penetrating the skin barrier than a cream or toner. For optimal results, look for serums with a concentration of 10–20%.

  2. Apply in the Morning
    Use vitamin C serum in the morning after cleansing and before applying moisturizer and sunscreen. This maximizes its protective effects against environmental damage throughout the day.

  3. Then, Be Patient
    Like most skincare products, vitamin C takes time to show noticeable results. With daily use, expect visible improvements in six to eight weeks.

  4. Test for Sensitive Skin
    If you have sensitive skin, do a skin test first, as the high acidity can be irritating.

Important Tip for Pairing Vitamin C with Other Ingredients:

  • Do not mix vitamin C with retinol or niacinamide because the pH levels are incompatible. If you want to use both, I suggest using vitamin C in the morning and niacinamide at night (retinol is always used at night).

Below are some of my favorite vitamin C products to help you get started:

Adding vitamin C to your routine is a step toward healthier, more radiant skin!


 
 

Rosie Petrillo, Licensed Esthetician

Âme Skin Studio

108 Washington Street, Norwalk, CT

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