COSRX The Niacinamide 15 Serum vs The Derma Co 1% Kojic + Arbutin Night Repair Face Serum-Gel

COSRX

The Derma Co

A serum built around Niacinamide and Zinc salt, for hydration and barrier repair.

A serum built around Alpha arbutin, for hydration and pollution defence.

Serum

15 ingredients

Brand price

USD 25.00 · checked 25 Sept 2026 · brand's site

Brand price

INR 599.00 · checked 28 Sept 2026 · brand's site

No retailer listed yet

Brand from South Korea

Brand from India

At a Glance

They come out differently on Pore-clogger-free; that row is shaded. Tap any answer to see why.

Vitamin E1
Tocopherols — fat-soluble antioxidants.
Tocopherol
Zinc salt (sebum/soothing)1
Zinc salts, used for sebum control and soothing.
Zinc PCA
AHA1
Alpha hydroxy acids — water-soluble chemical exfoliants.
Citric Acid
Niacinamide1
Vitamin B3 — supports the barrier and evens tone.
Niacinamide

Alpha arbutin1
A gentler glycosylated relative of hydroquinone.
Alpha-Arbutin
Kojic acid1
A fungal-derived tyrosinase inhibitor used on pigmentation.
Kojic Dipalmitate

Hydrating5
Boosts hydration and relieves dry, tight skin.
Acetyl Glucosamine, Butylene Glycol, Tocopherol, Trehalose, Zinc PCA
Barrier Repair3
Strengthens and restores the skin's natural barrier.
Allantoin, Niacinamide, Tocopherol
Reduces Irritation2
Eases discomfort and supports skin resilience.
Allantoin, Zinc PCA
Redness Reducing2
Soothes visible redness and calms irritation.
Allantoin, Niacinamide

Hydrating2
Boosts hydration and relieves dry, tight skin.
Glycerin, Propanediol
Barrier Repair2
Strengthens and restores the skin's natural barrier.
Glycerin, Kojic Dipalmitate
Smoothing1
Refines rough or uneven texture.
Kojic Dipalmitate
Brightening2
Restores radiance to dull, tired skin.
Alpha-Arbutin, Kojic Dipalmitate

May Trigger Acne1
Can clog pores or trigger breakouts.
Tocopherol
May Worsen Seborrheic Dermatitis1
May feed the yeast involved in seborrheic dermatitis.
Acetyl Glucosamine
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Tocopherol
May Worsen Irritation1
May cause stinging, redness or sensitivity.
Tocopherol

May Worsen Seborrheic Dermatitis1
May feed the yeast involved in seborrheic dermatitis.
Kojic Dipalmitate

Show highlights for:

Aqua
Solvent
0 / —
Glycerin
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Propanediol
Viscosity Controlling
0-1 / —
- Hydrating
Sodium Acrylates Crosspolymer-2
Absorbent
0-1 / —
Alpha-Arbutin
Antioxidant
- Alpha arbutin
- Brightening
- Dark Spots
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising
C15-19 Alkane
Solvent
Kojic Dipalmitate
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Kojic acid
- Brightening
- Dark Spots
- May Worsen Seborrheic Dermatitis
Ethylhexylglycerin (in both products)
Skin Conditioning
CI 77163
Colorant
0-1 / —

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →

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