How many drops should I use, and where does the serum go in my routine?

After cleansing and toner, apply 2–3 drops evenly over your face and gently pat until absorbed. Follow with moisturizer.

Should I use this serum in the morning or evening?

Evening use is recommended. If you apply it during the day, follow with sunscreen.

What does the serum feel like?

The serum has a lightweight texture, and its formula is designed to minimize stickiness.

Is this serum intended for sensitive skin?

It is intended for all skin types, including sensitive skin. Patch testing before first use is recommended.

Which ingredients lead its brightening-focused formula?

The formula contains 20% pure vitamin C as ascorbic acid, along with niacinamide and glutathione. Together, the trio supports brighter-looking skin, more even-looking tone and the appearance of dark spots while refining the look of texture and clarity.

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MIXSOON

Vitamin C 20 Serum

What it is: A lightweight facial serum with 20% pure vitamin C that helps brighten dull-looking skin and improve the appearance of uneven tone and dark spots.

20% Pure Vitamin C
Dullness, Tone & Dark Spot Care
Helps Smooth Skin Texture
Lightweight, Less-Sticky Design

Net weight: 10 mL

Vitamin C 20 Serum

10ml ·$10.00 USD~~$15.00 USD~~

20% Pure Vitamin C

Dullness, Tone & Dark Spot Care

Helps Smooth Skin Texture

Lightweight, Less-Sticky Design

Main active: Vitamin C
Intensity: Advanced

PRODUCT DETAILS

Hello, radiance. This facial serum centers 20% pure vitamin C in a formula created for dull-looking skin, uneven tone and the appearance of dark spots.

Reach for it when you want brighter, more even-looking tone without losing sight of texture. Alongside its brightening focus, the serum helps smooth the look of skin texture and improve the appearance of elasticity.

Niacinamide and glutathione join vitamin C in a trio designed to brighten dull-looking skin, improve the appearance of uneven tone and dark spots, and refine the look of texture and clarity. Each highlighted ingredient has a clear place in the same focused brightening story.

The texture is lightweight and designed to minimize stickiness. Suitable for all skin types, including sensitive skin, it brings tone, dark-spot and texture care together in one serum.

Learn more

GOES WELL WITH

1025 Dokdo Sun Cream$18.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused care for brighter, more even-looking skin, visible dark spots and smoother-looking texture.

Brighter-Looking Skin
More Even-Looking Tone
Dark Spot Appearance Care
Smoother-Looking Texture

Key Ingredients

Seven dry amber, apricot, lavender and celadon relief rays spread diagonally across one warm-ivory matte plaster surface beside a tiny coral point.

Vitamin C

An antioxidant ingredient family that can help brighten uneven-looking tone and soften visible dullness.

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Fine dry pressed striations with soft amber, celadon, lavender and coral tones fade into a warm ivory matte surface.

Glutathione

A reduced tripeptide used as a cosmetic reducing agent. Small topical studies test specific concentrations and complete regimens—not every formula that lists GLUTATHIONE.

Betaine

A humectant that helps maintain moisture balance, leaving skin feeling soft and comfortable.

Gluconolactone

A gentle exfoliating PHA that helps smooth skin texture while attracting moisture.

Pleated lavender paper fan with a coral-red edge on a pale blush surface.

Adenosine

A skin-conditioning ingredient commonly used to help skin look smoother and soften the appearance of fine lines.

Translucent amber-toned abstract sculpture with flowing loops and rounded forms, set on a soft blush seamless surface with warm highlights and a gentle grounding shadow.

Ferulic Acid

An antioxidant that helps defend skin against environmental stressors and supports a resilient-looking complexion.

Pale yellow serum shown as a glossy three-lobed swatch on white.

Concerns & Benefits

Your Concerns

1
Dullness
For skin that looks muted and could use a brighter appearance.
2
Uneven Skin Tone
For areas that make your overall complexion look less even.
3

How To Use

1Before first use, patch test the serum.
2After opening the bottle, remove the original cap and replace it with the supplied dropper.
3After cleansing and toner, dispense 2–3 drops, spread the serum evenly over your face and gently pat until absorbed.
4Follow with moisturizer.
5Evening use is recommended. If you apply the serum during the day, follow with sunscreen.

Two amber bottles, a detached dropper and a pool of pale serum on white.

Frequently asked questions

What skin concerns is this serum designed to target?

It is designed to brighten dull-looking skin, improve the appearance of uneven tone and dark spots, and help skin texture look smoother and more elastic.

Customer reviews

Frequently Bought Together

Save money buying these products together

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This itemVitamin C 20 Serum$10.00 USD$15.00 USD

1025 Dokdo Sun Cream$18.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

Total price: $37.08 USD $42.08 USD

This itemVitamin C 20 Serum$10.00 USD$15.00 USD

1025 Dokdo Sun Cream$18.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

Total price: $37.08 USD $42.08 USD

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MIXSOON Vitamin C 20 Serum | Brightening Care | Sleepy Hello

MIXSOON

Vitamin C 20 Serum

What it is: A lightweight facial serum with 20% pure vitamin C that helps brighten dull-looking skin and improve the appearance of uneven tone and dark spots.

20% Pure Vitamin C
Dullness, Tone & Dark Spot Care
Helps Smooth Skin Texture
Lightweight, Less-Sticky Design

Net weight: 10 mL

Vitamin C 20 Serum

10ml ·$10.00 USD~~$15.00 USD~~

20% Pure Vitamin C

Dullness, Tone & Dark Spot Care

Helps Smooth Skin Texture

Lightweight, Less-Sticky Design

Main active: Vitamin C
Intensity: Advanced

PRODUCT DETAILS

Hello, radiance. This facial serum centers 20% pure vitamin C in a formula created for dull-looking skin, uneven tone and the appearance of dark spots.

The texture is lightweight and designed to minimize stickiness. Suitable for all skin types, including sensitive skin, it brings tone, dark-spot and texture care together in one serum.

Learn more

GOES WELL WITH

1025 Dokdo Sun Cream$18.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused care for brighter, more even-looking skin, visible dark spots and smoother-looking texture.

Brighter-Looking Skin
More Even-Looking Tone
Dark Spot Appearance Care
Smoother-Looking Texture