Youlief DIA Clear Serum bottle with dropper, macro still life

Step 05 · Brighten

DIA Clear Serum Tranexamic Acid 5%

Name: DIA Clear Serum Tranexamic Acid 5%
Brand: Youlief
Price: 32 USD
Availability: InStock

1.01 fl. oz. / 30 mL

$32

The quiet star of Korean brightening.

Tranexamic acid — the ingredient Korean dermatology reaches for first — at a full 5%, paired with niacinamide to visibly reduce the look of dark spots, post-blemish marks and uneven tone.

Tranexamic 5%Spot-focusedClear look

✓Dermatologist Tested

✓Sensitive-Skin Tested

✓Made in Korea

In stock — ships across the United States now

Where to buy

Available now through Vegalab, Youlief’s distributor in the United States. Retail & stockist inquiries welcome.

How to use

After toner, smooth 2–3 drops over the full face or concentrate on areas of concern, morning and evening. Pair with daily sunscreen for best results.

Key ingredients

Tranexamic Acid 5% · Niacinamide · 8-Form Hyaluronic Acid · Diamond Powder

Full ingredient list (INCI)

Water, Tranexamic Acid, Dipropylene Glycol, Propanediol, 1,2-Hexanediol, Niacinamide, Arginine, Carbomer, Ethylhexylglycerin, Adenosine, Butylene Glycol, Disodium EDTA, Hydrolyzed Extensin, Pentylene Glycol, Panthenol, Sodium Hyaluronate, Polymethylsilsesquioxane, Potassium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Diamond Powder

Ingredient Talk

What is tranexamic acid?

A derm-office favorite that made its way from Korean clinics into serums. It’s prized for softening the look of stubborn dark marks — the kind that linger after blemishes — and it plays beautifully with niacinamide, which is exactly the pairing in this bottle.

Product features

5% Tranexamic Acid

A generous concentration for the look of dark spots and uneven tone.

Niacinamide Assist

2% niacinamide reinforces the bright, even-toned look.

Eight Hyaluronic Forms

Layered hydration keeps treated skin comfortable and dewy.

Diamond Luminosity

Micro-fine diamond powder lends an immediate glow while tone evens over time.