What does the serum feel like as it absorbs?

It has a moisture-rich texture that spreads smoothly and absorbs with a fresh feel.

Where does this serum go in a skincare routine?

Apply it after toner, spread it gently over your face and leave it on to absorb.

Which skin types and concerns is it recommended for?

It is recommended for all skin types, including sensitive skin, and is especially relevant to dullness, visible dark spots and blemishes.

Which featured ingredients support its brightening and hydrating positioning?

The formula contains 4% niacinamide and 1% vitamin C derivative for brighter, more even-looking skin. Ferulic acid, tocopherol and ascorbic acid provide antioxidant support, while allantoin and beta-glucan help hydrate and give skin a plumper look.

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Cell Fusion C

Toning C Dark Spot Serum

What it is: A facial serum that helps diminish visible dark spots while supporting a brighter, more even-looking complexion.

Helps soften visible dark spots
Supports radiant, even-looking tone
Moisture-rich, fresh feel
Antioxidant care for visible aging

Net weight: 30 ml

Toning C Dark Spot Serum

30ml ·$17.99 USD

Helps soften visible dark spots

Supports radiant, even-looking tone

Moisture-rich, fresh feel

Antioxidant care for visible aging

Main active: Niacinamide
Intensity: Standard

PRODUCT DETAILS

When dark spots and dullness leave your complexion looking less even, this brightening serum offers focused care. It helps diminish the look of dark spots while supporting a more radiant, even-looking tone—a clear choice when brightness is at the top of your list.

The formula pairs 4% niacinamide with 1% vitamin C derivative. Niacinamide helps improve the appearance of tone and texture, while the vitamin C derivative supports brighter, more even-looking and firmer-looking skin. Ferulic acid, tocopherol and ascorbic acid add antioxidant support against environmental aggressors associated with premature visible aging.

There’s a softer side to the formula, too. Allantoin and beta-glucan offer hydrating, plumping support, while Melissa leaf extract supports a calm, soothed feel. The serum has a moisture-rich texture with a fresh feel, spreading smoothly before it absorbs. It is recommended for all skin types, including sensitive skin, and is especially suited to dullness, visible dark spots and blemishes.

Learn more

GOES WELL WITH

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sun Cream$18.99 USD

Alpha-5 Mela Care Cream$14.99 USD

All Around Safe Block Soft Finish Sun Milk SPF50+ PA+++$11.99 USD

5α Control No-sebum Sun Lotion SPF50+ PA++++$17.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused brightening, hydrating and antioxidant care for a fresher, more even-looking complexion.

More even-looking tone
Fresh-looking radiance
Hydrating comfort
Antioxidant support

Key Ingredients

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

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.

Translucent gel lattice draped over two coral ceramic supports on a warm ivory surface.

Beta-Glucan

A moisture-supporting polysaccharide commonly used to help skin feel hydrated, soothed and more comfortable.

Three oversized translucent, softly faceted glass crystals arranged on a pale lavender stage above a blush background with a small coral accent.

Allantoin

Helps soothe and soften dry, rough-feeling skin.

An angled serum bottle surrounded by translucent yellow citrus slices.

Concerns & Benefits

Your Concerns

1
Dark Spots Hyperpigmentation
For dark spots that leave your complexion looking less even.
2
Dullness
For skin whose natural radiance looks a little muted.

How To Use

1After toner, apply an appropriate amount over your face.
2Spread the serum gently, following the direction of your skin texture.
3Leave it on and allow it to absorb.

Two serum bottles arranged diagonally across a bright white panel.

Frequently asked questions

What concerns is this serum designed to address?

It helps diminish the visible appearance of dark spots and hyperpigmentation while supporting a brighter, more radiant and even-looking tone.

Keep learning

Customer reviews

Frequently Bought Together

Buy these products together

This itemToning C Dark Spot Serum$17.99 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sun Cream$18.99 USD

Total price: $59.97 USD

This itemToning C Dark Spot Serum$17.99 USD

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sun Cream$18.99 USD

Total price: $59.97 USD

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1025 Dokdo Eye Cream

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

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1025 Dokdo Sun Cream

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

50 ml$18.99 USD

TIAM

Alpha-5 Mela Care Cream

Focused care for brighter, more even-looking skin

40 ml$14.99 USD

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All Around Safe Block Soft Finish Sun Milk SPF50+ PA+++

Lightweight daily SPF50+ PA+++ sun milk with a soft matte, natural tone-up finish.

70 ml$11.99 USD

DR CEURACLE

5α Control No-sebum Sun Lotion SPF50+ PA++++

Lightweight physical sunscreen for shine control and a powdery matte finish

50ml$17.99 USD

VT COSMETICS

100 Reedle Shot Stick Pouch

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

2 mL × 10$8.09 USD

ROUND LAB

1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml$11.99 USD

ROUND LAB

1025 Dokdo Lotion

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

200 ml$14.99 USD

Cell Fusion C Toning C Dark Spot Serum 30ml | Sleepy Hello

Cell Fusion C

Toning C Dark Spot Serum

What it is: A facial serum that helps diminish visible dark spots while supporting a brighter, more even-looking complexion.

Helps soften visible dark spots
Supports radiant, even-looking tone
Moisture-rich, fresh feel
Antioxidant care for visible aging

Net weight: 30 ml

Toning C Dark Spot Serum

30ml ·$17.99 USD

Helps soften visible dark spots

Supports radiant, even-looking tone

Moisture-rich, fresh feel

Antioxidant care for visible aging

Main active: Niacinamide
Intensity: Standard

PRODUCT DETAILS

Learn more

GOES WELL WITH

1025 Dokdo Eye Cream$22.99 USD

1025 Dokdo Sun Cream$18.99 USD

Alpha-5 Mela Care Cream$14.99 USD

All Around Safe Block Soft Finish Sun Milk SPF50+ PA+++$11.99 USD

5α Control No-sebum Sun Lotion SPF50+ PA++++$17.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

Focused brightening, hydrating and antioxidant care for a fresher, more even-looking complexion.

More even-looking tone
Fresh-looking radiance
Hydrating comfort
Antioxidant support