COSRX AC Collection Calming Foam Cleanser vs K-Secret Seoul 1988 Daily Gel Cleanser: Retinal Liposome + Pear

COSRX

K-Secret

A face cleanser built around BHA and Salicylic acid, for barrier repair and smoothing.

A face cleanser built around AHA and Niacinamide, for barrier repair and hydration.

Face cleanser

24 ingredients

51 ingredients

Brand price

USD 15.00 · checked 25 Sept 2026 · brand's site

Brand price

USD 16.00 · checked 8 Oct 2026 · brand's site

No retailer listed yet

Brand from South Korea

Brand country not recorded

At a Glance

They come out differently on EU-allergen-free, Pore-clogger-free and Oil-free; those rows are shaded. Tap any answer to see why.

Centella asiatica (Cica)3
Centella asiatica (cica), used to calm irritation.
Asiatic Acid, Asiaticoside, Madecassic Acid
BHA1
Beta hydroxy acid — oil-soluble, so it works inside the pore.
Salicylic Acid
Salicylic acid1
The BHA used in acne treatment.
Salicylic Acid

Ceramide3
Skin-identical lipids that hold the barrier together.
Ceramide AP, Ceramide EOP, Ceramide NP
Colloidal oatmeal1
Finely milled oat — an FDA-recognised skin protectant.
Avena Sativa Kernel Extract
Retinoid1
Vitamin A derivatives that speed cell turnover.
Retinal
AHA1
Alpha hydroxy acids — water-soluble chemical exfoliants.
Citric Acid

Hydrating3
Boosts hydration and relieves dry, tight skin.
Glycerin, PEG-32, Stearic Acid
Barrier Repair6
Strengthens and restores the skin's natural barrier.
Glycerin, Glyceryl Stearate, Lavandula Hybrida Oil, Oleic Acid, Palmitic Acid, Stearic Acid
Reduces Irritation3
Eases discomfort and supports skin resilience.
Asiatic Acid, Asiaticoside, Madecassic Acid
Redness Reducing3
Soothes visible redness and calms irritation.
Asiatic Acid, Asiaticoside, Madecassic Acid

May Trigger Acne6
Can clog pores or trigger breakouts.
Arachidic Acid, Lauric Acid, Myristic Acid, Oleic Acid, Palmitic Acid, Stearic Acid
May Worsen Seborrheic Dermatitis11
May feed the yeast involved in seborrheic dermatitis.
Arachidic Acid, Cocamidopropyl Betaine, Glyceryl Stearate, Lauramide DEA, Lauric Acid, Myristic Acid, Oleic Acid, Palmitic Acid, PEG-100 Stearate, Potassium Cocoate, Stearic Acid
May Worsen Keratosis Pilaris6
May clog follicles or strip skin prone to keratosis pilaris.
Arachidic Acid, Lauric Acid, Myristic Acid, Oleic Acid, Palmitic Acid, Stearic Acid
May Worsen Irritation3
May cause stinging, redness or sensitivity.
Lavandula Hybrida Oil, Limonene, Linalool

May Worsen Seborrheic Dermatitis12
May feed the yeast involved in seborrheic dermatitis.
Aluminum/Magnesium Hydroxide Stearate, Ceramide AP, Ceramide EOP, Ceramide NP, Coco-Betaine, Coco-Glucoside, Macadamia Ternifolia Seed Oil, Phosphatidylcholine, Phytosphingosine, Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate, Potassium Cetyl Phosphate, Sodium Lauroyl Lactylate
May Worsen Oily Skin1
May increase shine or excess oil.
Macadamia Ternifolia Seed Oil
May Worsen Irritation1
May cause stinging, redness or sensitivity.
Fragrance
May Worsen Eczema1
May worsen itching or irritation for eczema-prone skin.
Fragrance

Show highlights for:

Water (in both products)
Skin Conditioning
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Stearic Acid
Cleansing
2-3 / 0
- Fatty acids (stearic, oleic, lauric)
- Fatty alcohols (Malassezia)
- Possibly animal-derived
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Myristic Acid
Cleansing
3 / 0
- Fatty acids (stearic, oleic, lauric)
- Fatty alcohols (Malassezia)
- Possibly animal-derived
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
PEG-32
Humectant
Potassium Hydroxide (in both products)
Buffering
0-1 / —
Palmitic Acid
Emollient
2 / 0
- Fatty acids (stearic, oleic, lauric)
- Possibly animal-derived
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Lauric Acid
Cleansing
4 / 1
- Fatty acids (stearic, oleic, lauric)
- Possibly animal-derived
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Glyceryl Stearate
Emollient
1 / 0
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Possibly animal-derived
- May Worsen Seborrheic Dermatitis
PEG-100 Stearate
Cleansing
0 / 0
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis

Water (in both products)
Skin Conditioning
Sodium C14-16 Olefin Sulfonate
Cleansing
Glycerin (in both products)
Humectant
0 / 0
- Possibly animal-derived
- Hydrating
Coco-Betaine
Cleansing
- Fatty alcohols (Malassezia)
- May Worsen Seborrheic Dermatitis
Acrylates Copolymer
Film Forming
Ethylhexylglycerin
Skin Conditioning
Hydroxyacetophenone
Antioxidant
Potassium Benzoate
Preservative
Zea Mays Starch
Skin Protecting
0-1 / —
Citric Acid
Buffering
0 / —
- AHA
- Exfoliating
- Smoothing

These ingredients are found in both products.

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

Water
Antiplaque, Skin Conditioning, Solvent
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Learn more about Water →
Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →
Potassium Hydroxide
Buffering
Potassium Hydroxide is the inorganic base
Learn more about Potassium Hydroxide →