What does the serum feel like, and how does it finish?

It feels lightweight and absorbs quickly with a clean finish. The visible capsules melt into the serum, leaving a smooth, translucent-looking appearance.

Is the serum intended for daily use?

Yes. It is intended for daily use.

Can I apply another layer for more hydration?

Yes. Apply another layer as needed when you want additional hydration.

What should I apply after the serum during the day?

Follow the serum with sunscreen whenever you use it during the day.

Does the 3% claim mean the serum contains 3% pure astaxanthin?

No. The 3% refers to the membrane-free astaxanthin capsule preparation, not pure astaxanthin. The English ingredient declaration separately lists astaxanthin at 10,003ppb.

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VT COSMETICS

Vitamin C+ Astaxanthin Serum

What it is: A daily-use vitamin C and astaxanthin serum that hydrates and helps dull, uneven-looking skin appear brighter and smoother.

Brighter-looking radiance
More even-looking tone
Hydrating and moisturizing care
Fast-absorbing, clean finish

Net weight: 30ml

Vitamin C+ Astaxanthin Serum

30ml ·$15.99 USD

Brighter-looking radiance

More even-looking tone

Hydrating and moisturizing care

Fast-absorbing, clean finish

Main active: Vitamin C Complex
Intensity: Supportive

PRODUCT DETAILS

Hello, radiance. This serum brings vitamin C and astaxanthin together for antioxidant care while helping dull, uneven-looking skin appear brighter and more radiant. It also supports hydration and a smoother-looking texture, giving you a focused answer for skin that looks a little flat or feels less refined.

The texture keeps things light. Visible astaxanthin capsules melt on contact and dissolve into the serum for quick absorption. It settles into a clean, lightweight finish with a smooth, translucent-looking appearance, making it comfortable to layer into your routine.

Designed for daily use, it balances brightening and antioxidant care with moisture support. Niacinamide and kojic acid join the vitamin C blend to support a more radiant-looking complexion, while several declared forms of hyaluronic acid add a useful hydration story. It’s a thoughtful fit when you want more even-looking radiance with a lightweight finish.

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Sun Cream$18.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

A balanced blend of radiance, hydration and texture benefits, finished with a light touch.

Brighter-looking radiance
More even-looking tone
Smoother-looking texture
Comforting hydration

Key Ingredients

Abstract still life of translucent blush-toned crystalline forms and smooth pearlescent droplets arranged on a warm ivory surface, softly lit with a grounding shadow.

Vitamin C Complex

A blend of vitamin C forms used in brightening-focused formulas to help soften the look of dullness and support visible radiance.

A glossy translucent red-orange abstract gel-like form rests on a matte peach surface against a soft ivory backdrop, lit with gentle highlights and a grounding shadow.

Astaxanthin

A carotenoid antioxidant used in skincare to help soften the look of visible effects associated with oxidative stress.

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Abstract translucent peach and ivory folded forms with small droplets, arranged on a softly lit warm cream surface.

Kojic Acid

Helps target uneven-looking patches to support clearer, more radiant-looking skin.

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

Model holding the open dropper beside her cheek with hydration, tone, texture, and antioxidant callouts.

Concerns & Benefits

Your Concerns

1
Dullness
When your complexion looks flat and could use more visible radiance.
2
Uneven Skin Tone
When uneven-looking tone makes your complexion appear less clear.

How To Use

1Apply a few drops evenly over your face and allow the serum to absorb.
2If you want more hydration, apply another layer as needed.
3When using the serum during the day, follow with sunscreen.

Model dispensing serum drops onto her cheek beside three numbered application instructions.

Frequently asked questions

What skin concerns is this serum designed to address?

It is designed to help with dullness, uneven-looking tone, dehydration and uneven-looking texture while providing antioxidant care.

Keep learning

Customer reviews

Frequently Bought Together

Buy these products together

This itemVitamin C+ Astaxanthin Serum$15.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cream$24.99 USD

Total price: $49.07 USD

This itemVitamin C+ Astaxanthin Serum$15.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cream$24.99 USD

Total price: $49.07 USD

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100 Reedle Shot Stick Pouch

A travel-size evening booster for smoother-feeling, more refined-looking skin.

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1025 Dokdo Eye Cream

Lightweight daily eye care for hydration, brightness and smoother-looking fine lines.

30 ml / 1.01 fl oz$22.99 USD

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1025 Dokdo Pad

Two-sided toner care for tidier texture and balanced moisture.

70 pads / 120 g$20.99 USD

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1025 Dokdo Sleeping Pack

A lightweight, unscented overnight gel for hydration and smoother-feeling skin.

100 ml$15.99 USD

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1025 Dokdo Sun Cream

SPF 50+ PA++++ protection in a lightweight, no-white-cast lotion.

50 ml$18.99 USD

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1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml$11.99 USD

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1025 Dokdo Lotion

A lightweight, unscented facial moisturizer with three forms of hyaluronic acid for lasting moisture without stickiness.

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VT COSMETICS Vitamin C Astaxanthin Serum | Sleepy Hello

VT COSMETICS

Vitamin C+ Astaxanthin Serum

What it is: A daily-use vitamin C and astaxanthin serum that hydrates and helps dull, uneven-looking skin appear brighter and smoother.

Brighter-looking radiance
More even-looking tone
Hydrating and moisturizing care
Fast-absorbing, clean finish

Net weight: 30ml

Vitamin C+ Astaxanthin Serum

30ml ·$15.99 USD

Brighter-looking radiance

More even-looking tone

Hydrating and moisturizing care

Fast-absorbing, clean finish

Main active: Vitamin C Complex
Intensity: Supportive

PRODUCT DETAILS

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cream$24.99 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Pad$20.99 USD

1025 Dokdo Sleeping Pack$15.99 USD

1025 Dokdo Sun Cream$18.99 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

A balanced blend of radiance, hydration and texture benefits, finished with a light touch.

Brighter-looking radiance
More even-looking tone
Smoother-looking texture
Comforting hydration