What does the serum feel like?

It has a watery, lightweight texture that absorbs quickly and layers without pilling when appropriately applied. Using more than recommended may feel sticky or cause pilling.

How should sensitive skin introduce it?

Start with a small amount 2–3 times weekly. Beginner guidance also suggests 1–2 drops every other day before moving toward daily use, while watching how your skin responds.

Can I pair it with vitamin C, retinol, or AHA/BHA?

It can generally be paired with these actives when your skin is comfortable with the routine. When combining several potentially irritating actives, start slowly and reduce frequency or separate them by time of day if stinging or redness occurs.

Free standard shipping to eligible countries from €71

TIAM

Vita B3 Source

What it is: A watery, lightweight facial serum made to bring a fresher look to dull skin and help fade visible post-acne marks.

Fresher-looking skin
Helps soften visible post-acne marks
Watery, lightweight feel
Fragrance-free and unscented

Net weight: 40 ml

Vita B3 Source

40ml ·€11.00

Fresher-looking skin

Helps soften visible post-acne marks

Watery, lightweight feel

Fragrance-free and unscented

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

Vita B3 Source pairs 10% niacinamide with 2% arbutin in a focused serum for dull-looking skin and lingering post-acne marks. It helps bring a fresher look to dull skin and soften the appearance of visible marks.

The watery texture feels lightweight, absorbs quickly, and layers under moisturizer or makeup without pilling when appropriately applied. Keep to the recommended amount, since extra product may feel sticky or cause pilling.

The formula is fragrance-free and unscented.

Learn more

GOES WELL WITH

1025 Dokdo Sun Cream€17.98

1025 Dokdo Cleanser€10.99

1025 Dokdo Eye Cream€20.88

1025 Dokdo Lotion€13.98

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cream€23.00

1025 Dokdo Pad€18.99

1025 Dokdo Sleeping Pack€14.98

A focused formula for a fresher-looking complexion, softer-looking post-acne marks, and lightweight layering.

Fresher-looking skin
Softer-looking post-acne marks
Easy, lightweight layering

Key Ingredients

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

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.

Close-up of the clear serum texture beneath a glass dropper.

Concerns & Benefits

Your Concerns

1
Dullness
When your skin looks dull and you want a fresher-looking finish.
2
Post Acne Marks Scars
When visible post-acne discoloration lingers, rather than indented or raised scars.
3

How To Use

1In your morning or evening routine, apply 2–3 drops evenly to your face.
2Gently pat the serum to support absorption.
3If your skin is sensitive, start with a small amount 2–3 times weekly; beginner guidance also suggests 1–2 drops every other day before moving toward daily use.
4During the day, finish with sunscreen.

A dropper held above the back of a hand beside the open bottle.

Frequently asked questions

Can it remove indented acne scars?

It is intended to help fade visible post-acne discoloration. It cannot remove indented or raised acne scars.

Keep learning

Customer reviews

Frequently Bought Together

Buy these products together

This itemVita B3 Source€11.00

1025 Dokdo Sun Cream€17.98

1025 Dokdo Cleanser€10.99

Total price: €39.97

This itemVita B3 Source€11.00

1025 Dokdo Sun Cream€17.98

1025 Dokdo Cleanser€10.99

Total price: €39.97

ROUND LAB

1025 Dokdo Sun Cream

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

50 ml€17.98

ROUND LAB

1025 Dokdo Cleanser

Creamy, slightly acidic foam for a comfortable cleanse

150 ml€10.99

ROUND LAB

1025 Dokdo Eye Cream

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

30 ml / 1.01 fl oz€20.88

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

VT COSMETICS

100 Reedle Shot Stick Pouch

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

2 mL × 10€7.88

ROUND LAB

1025 Dokdo Cream

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

80 ml€23.00

ROUND LAB

1025 Dokdo Pad

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

70 pads / 120 g€18.99

ROUND LAB

1025 Dokdo Sleeping Pack

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

100 ml€14.98

TIAM Vita B3 Source 40ml Serum | Sleepy Hello

TIAM

Vita B3 Source

What it is: A watery, lightweight facial serum made to bring a fresher look to dull skin and help fade visible post-acne marks.

Fresher-looking skin
Helps soften visible post-acne marks
Watery, lightweight feel
Fragrance-free and unscented

Net weight: 40 ml

Vita B3 Source

40ml ·€11.00

Fresher-looking skin

Helps soften visible post-acne marks

Watery, lightweight feel

Fragrance-free and unscented

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

The formula is fragrance-free and unscented.

Learn more

GOES WELL WITH

1025 Dokdo Sun Cream€17.98

1025 Dokdo Cleanser€10.99

1025 Dokdo Eye Cream€20.88

1025 Dokdo Lotion€13.98

100 Reedle Shot Stick Pouch€7.88

1025 Dokdo Cream€23.00

1025 Dokdo Pad€18.99

1025 Dokdo Sleeping Pack€14.98

A focused formula for a fresher-looking complexion, softer-looking post-acne marks, and lightweight layering.

Fresher-looking skin
Softer-looking post-acne marks
Easy, lightweight layering