How many drops should I apply?

Apply 2–3 drops to your face.

Where does it go in my skincare routine?

Apply it after cleansing and toning, then gently pat until absorbed.

What does the texture feel like on the skin?

The texture is lightweight and designed to absorb quickly.

Can it be layered beneath cream or sunscreen?

Yes. Its lightweight texture is designed to layer easily beneath cream or sunscreen.

Which notable tone-care ingredients are in the formula?

The formula lists sea buckthorn fruit extract, niacinamide and 3-O-ethyl ascorbic acid, a vitamin C derivative.

Free standard shipping to eligible countries from €71

ISNTREE

C-Niacin Toning Ampoule

Q: Does the formula offer hydration as well as tone care?

Yes. Aloe vera extract and hyaluronic acid provide moisture support, and the formula is intended to leave a hydrated, glowy finish.

What it is: A fast-absorbing ampoule that helps improve the look of dull, uneven tone while supporting a hydrated, glowy finish.

Tone care for visible dullness
Hydrated, glowy finish
Lightweight and fast-absorbing
Layers beneath cream or sunscreen

Net weight: 50 ml

C-Niacin Toning Ampoule

50ml ·€11.98

Tone care for visible dullness

Hydrated, glowy finish

Lightweight and fast-absorbing

Layers beneath cream or sunscreen

Main active: Niacinamide
Intensity: Supportive

PRODUCT DETAILS

Hello, glow. When your skin looks dull or uneven, this ampoule gives your routine a focused step for brighter, more even-looking tone. Sea buckthorn fruit extract helps improve the appearance of skin tone and nourish skin, while niacinamide supports the formula's approach to dullness and visible unevenness.

The formula also includes 3-O-ethyl ascorbic acid, a vitamin C derivative with relevance to uneven-looking tone. Alongside niacinamide, panthenol and bioflavonoids, the formula is designed to support a fresh, radiant-looking complexion. It brings tone care and moisture support together in one simple ampoule step.

Tone care can still feel comfortably hydrating. Aloe vera extract and hyaluronic acid provide moisture support, and the formula is intended to leave a hydrated, glowy finish. This balance makes it a thoughtful option when dehydration sits beside dullness or uneven-looking tone.

On skin, it feels lightweight and fast-absorbing. The texture layers easily beneath cream or sunscreen, helping this focused treatment fit neatly into the rest of your routine.

Learn more

GOES WELL WITH

1025 Dokdo Eye Cream€20.88

1025 Dokdo Sun Cream€17.98

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cleanser€10.99

1025 Dokdo Cream€23.00

1025 Dokdo Lotion€13.98

1025 Dokdo Pad€18.99

1025 Dokdo Sleeping Pack€14.98

Focused tone care, moisture support and a light, layer-friendly finish come together in one ampoule.

Brighter-looking tone
More even-looking complexion
Hydrated glow

Key Ingredients

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Clusters of orange sea buckthorn berries with narrow silvery-green leaves beside a glass bowl of amber liquid on a peach backdrop.

Sea Buckthorn Fruit Extract

A botanical fruit extract used in skincare to support moisture.

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.

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

Panthenol

Pro-vitamin B5 that helps skin hold moisture and feel softer and more comfortable.

Orange-labeled bottle and detached dropper surrounded by suspended water splashes.

Concerns & Benefits

Your Concerns

1
Dullness
For days when your complexion looks flat or less radiant than you would like.
2
Uneven Skin Tone
For visible unevenness that can leave your complexion looking less balanced.
3

How To Use

1Apply after cleansing and toning.
2Place 2–3 drops in your palm and spread them over your face.
3Gently pat until the ampoule is absorbed.
4Once absorbed, layer cream or sunscreen over it if that is your next routine step.

Two hands holding the orange-labeled bottle and its white dropper against a white background.

Frequently asked questions

What skin concerns is this ampoule intended to address?

It is intended for dull, uneven or pigmented-looking skin seeking gentle brightening and a fresher-looking tone.

Keep learning

Customer reviews

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This itemC-Niacin Toning Ampoule€11.98

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1025 Dokdo Sun Cream€17.98

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This itemC-Niacin Toning Ampoule€11.98

1025 Dokdo Eye Cream€20.88

1025 Dokdo Sun Cream€17.98

Total price: €50.84

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50 ml€17.98

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100 Reedle Shot Stick Pouch

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

2 mL × 10€7.88

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1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml€10.99

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1025 Dokdo Cream

A rich, unscented balm moisturizer for lasting hydration and a soft, cushioned feel.

80 ml€23.00

ROUND LAB

1025 Dokdo Lotion

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

200 ml€13.98

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1025 Dokdo Pad

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

70 pads / 120 g€18.99

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1025 Dokdo Sleeping Pack

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

100 ml€14.98

ISNTREE C-Niacin Toning Ampoule for Dull Skin | Sleepy Hello

ISNTREE

C-Niacin Toning Ampoule

What it is: A fast-absorbing ampoule that helps improve the look of dull, uneven tone while supporting a hydrated, glowy finish.

Tone care for visible dullness
Hydrated, glowy finish
Lightweight and fast-absorbing
Layers beneath cream or sunscreen

Net weight: 50 ml

C-Niacin Toning Ampoule

50ml ·€11.98

Tone care for visible dullness

Hydrated, glowy finish

Lightweight and fast-absorbing

Layers beneath cream or sunscreen

Main active: Niacinamide
Intensity: Supportive

PRODUCT DETAILS

On skin, it feels lightweight and fast-absorbing. The texture layers easily beneath cream or sunscreen, helping this focused treatment fit neatly into the rest of your routine.

Learn more

GOES WELL WITH

1025 Dokdo Eye Cream€20.88

1025 Dokdo Sun Cream€17.98

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cleanser€10.99

1025 Dokdo Cream€23.00

1025 Dokdo Lotion€13.98

1025 Dokdo Pad€18.99

1025 Dokdo Sleeping Pack€14.98

Focused tone care, moisture support and a light, layer-friendly finish come together in one ampoule.

Brighter-looking tone
More even-looking complexion
Hydrated glow