Collection: Vitamin C

Discover the best Korean vitamin C skincare at K-Touch — the classic glow-getter for bright, even, radiant skin. Vitamin C is a powerhouse antioxidant that fades dark spots, revives dull skin, evens tone, boosts collagen, and defends against environmental damage. Whether you want a high-strength vitamin C serum, a gentle starter, or a brightening ampoule, you'll find your glow here — from COSRX, Anua, Benton, 9wishes, Arencia, Laneige, and more.

New to the ingredient? Read our full guide: Vitamin C in Skincare: The Complete Guide.

What Is Vitamin C?

Vitamin C is a potent brightening antioxidant. The most researched form is L-ascorbic acid (pure vitamin C), highly effective but more active; gentler derivatives suit sensitive skin. You'll see it from around 10% up to 23% — beginners often start lower and build up. It's most effective applied in the morning, before SPF.

Vitamin C Benefits

• Brightens dull, tired skin for a lit-from-within glow
• Fades dark spots and hyperpigmentation
• Evens out skin tone and texture
• Supports collagen for firmer-looking skin
• Defends against environmental damage when paired with SPF

Vitamin C vs. Niacinamide

Both brighten, and they work beautifully together. Vitamin C is an antioxidant that boosts radiance and collagen; niacinamide fades dark spots, controls oil, and strengthens the barrier. Contrary to the old myth, they can be layered. Pair vitamin C with niacinamide for maximum brightening.

Shop Vitamin C by Type

Vitamin C serums: the high-strength COSRX The Vitamin C 23 Serum, gentler COSRX The Vitamin C 13 Serum, Benton Vitamin C Serum, and Dewytree Miracle Vitamin C Serum. Browse Korean Serums.

Ampoules & boosters: the 9wishes Tangerine C Vitamin Ampoule, Arencia Vitamin C Booster Shot, and spot-targeting Laneige Radian-C Vitamin Spot Ampoule.

For blemishes & texture: the Anua Green Lemon Vitamin C Blemish Serum and exfoliating COSRX AHA BHA Vitamin C Booster Serum.

Toners & creams: the COSRX AHA BHA Vitamin C Daily Toner, soothing APRILSKIN Pink Aloe Vitamin C Toner, and COSRX AHA BHA Vitamin C Daily Cream. Explore Korean Toners and Moisturizers.

Vitamin C mask: the cooling Dr.Jart+ Cryo Rubber with Brightening Vitamin C. More in Korean Masks.

Shop by Skin Concern

• Dark spots & hyperpigmentation: a high-strength vitamin C + niacinamide
• Dullness & radiance: a daily morning vitamin C serum
• Blemishes & texture: see Acne-Prone Skin
• Sensitive skin: start gentle — see Sensitive Skin

How to Use Vitamin C

Cleanse, tone on damp skin, apply a vitamin C serum in the morning, follow with moisturizer, and always finish with SPF — vitamin C and sunscreen are the ultimate morning duo. Start slow if you're new to it, and store vitamin C sealed and away from light to keep it potent.

Frequently Asked Questions

What does vitamin C do for your skin?
It brightens dull skin, fades dark spots, evens tone, supports collagen, and protects against environmental damage.

When should I apply vitamin C?
In the morning, before sunscreen — they work together to protect against UV and free-radical damage.

Can I use vitamin C with niacinamide?
Yes — the "they cancel out" claim is a myth. They layer well for brighter, more even skin.

What percentage should I use?
Beginners often start around 10–13% and build up to higher strengths like 23%.

Is vitamin C good for dark spots?
Yes — it's one of the most effective ingredients for fading dark spots and hyperpigmentation over time.

Why did my vitamin C change color?
It oxidizes with light and air, which darkens it and reduces potency. Store it sealed and out of sunlight.

Are these products authentic?
Yes. Every product at K-Touch is 100% authentic, sourced directly from trusted Korean brands.

Browse the full vitamin C collection below, or see what's trending in Best Sellers and New Arrivals.