
medicube
TXA Niacinamide 15% Serum
Serum · 40 ingredients · South Korea
TXA Niacinamide 15% Serum is a high-potency Korean serum formulated with 5% Tranexamic Acid and 10% Niacinamide to brighten dark spots, even skin tone, and deeply hydrate. Medicube's highest TXA concentration for dark spot and acne scar care to make healthy skin barrier and complexion.

Paula's Choice
25% Vitamin C + Glutathione Clinical Serum for Brightening & Dark Spots
Serum · 30 ingredients
A brightening serum formulated with 25% vitamin C to visibly improve uneven tone, discoloration, and dark spots. Glutathione works alongside vitamin C to strengthen skin's defenses, while ergothioneine supports the skin's natural antioxidant function. Fragrance-free and suited for those concerned with dark spots, uneven texture, and signs of aging.
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Both are Serum products.
Niacinamide
Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.
Hyaluronic Acid
Holds water in the skin for instant plumping and hydration.
Peptides
Amino-acid messengers that signal collagen production for firmer, smoother skin.
Glycerin
The workhorse humectant — simple, effective, and exceptionally well-tolerated.
Tranexamic Acid
Targets stubborn melasma at its inflammatory root — gentle and well-tolerated.
Alpha Arbutin
A safe, stable brightener without the risks of hydroquinone.
Adenosine
A cell-signaling ingredient that smooths fine lines and supports firmer skin.
Panthenol (B5)
A barrier-repairing humectant that hydrates and calms — a sensitive-skin staple.
Rosa Centifolia Flower Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Ferulic Acid
An antioxidant that stabilizes vitamins C and E and roughly doubles their sun defense.
Glutathione
An antioxidant brightener that supports a more even tone.
25% Vitamin C
A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.
Glutathione
An antioxidant brightener that supports a more even tone.
Hydration
Barrier
Brightening
Anti-aging
Firmness
Pores
Oil control
Soothing
Antioxidant
Healing
Brightening
Anti-aging
Antioxidant