Sulwhasoo
The Ultimate S Infusion TreatmentA serum built around Niacinamide and Vitamin E, for barrier repair and smoothing.
A serum built around Niacinamide and Retinoid, for barrier repair and hydration.
Brand price
USD 37.00 · checked 8 Oct 2026 · brand's site
Brand price
USD 590.00 · checked 26 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free, EU-allergen-free, Vegan and Cruelty-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Benefits
Hydrating12
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Camellia Sinensis Leaf Extract, Dipotassium Glycyrrhizate, Glycerin, Helianthus Annuus Seed Oil, Hyaluronic Acid, Hydroxyethyl Urea, Propanediol, Sodium Hyaluronate, Squalane, Stearic Acid, Tocopherol
Barrier Repair13
Strengthens and restores the skin's natural barrier.
Allantoin, Camellia Sinensis Leaf Extract, Cetearyl Alcohol, Glycerin, Glyceryl Stearate, Glycine Soja Oil, Helianthus Annuus Seed Oil, Niacinamide, Palmitic Acid, Sodium Polyacrylate, Squalane, Stearic Acid, Tocopherol
Reduces Irritation4
Eases discomfort and supports skin resilience.
Achillea Millefolium Extract, Allantoin, Camellia Sinensis Leaf Extract, Dipotassium Glycyrrhizate
Redness Reducing3
Soothes visible redness and calms irritation.
Hydrating25
Boosts hydration and relieves dry, tight skin.
Acetyl Heptapeptide-4, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Beta-Glucan, Betaine, Butylene Glycol, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Ectoin, Glycerin, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Hydrolyzed Proanthocyanidin, Jojoba Esters, Mannitol, Methyl Gluceth-20, Polyglycerin-3, Propanediol, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Soluble Collagen, Squalane, Theanine, Tocopherol
Barrier Repair28
Strengthens and restores the skin's natural barrier.
Behenyl Alcohol, Betaine, Butyrospermum Parkii Butter, Caprylic/Capric Triglyceride, Caprylyl Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Ethylhexyl Stearate, Glycerin, Glyceryl Caprylate, Glycine Soja Oil, Hydrogenated Poly(C6-14 Olefin), Hydrogenated Polyisobutene, Hydrolyzed Proanthocyanidin, Isononyl Isononanoate, Jojoba Esters, Methyl Glucose Sesquistearate, Niacinamide, Octyldodecyl Myristate, Panax Ginseng Berry Extract, Panax Ginseng Root Extract, Panax Ginseng Seed Oil, Pentaerythrityl Tetraethylhexanoate, Phytosteryl Isostearyl Dimer Dilinoleate, Squalane, Theanine, Tocopherol, Tripeptide-1
Reduces Irritation4
Eases discomfort and supports skin resilience.
Achillea Millefolium Extract, Beta-Glucan, Jojoba Esters, Palmitoyl Tetrapeptide-7
Redness Reducing3
Soothes visible redness and calms irritation.
Concerns
May Trigger Acne7
Can clog pores or trigger breakouts.
Cetearyl Alcohol, Glycine Soja Oil, Lauric Acid, Myristic Acid, Palmitic Acid, Stearic Acid, Tocopherol
May Worsen Seborrheic Dermatitis11
May feed the yeast involved in seborrheic dermatitis.
Cetearyl Alcohol, Glyceryl Stearate, Glycine Soja Oil, Helianthus Annuus Seed Oil, Hydrogenated Lecithin, Lauric Acid, Myristic Acid, Palmitic Acid, Polyglyceryl-3 Methylglucose Distearate, Sodium Stearoyl Glutamate, Stearic Acid
May Worsen Keratosis Pilaris7
May clog follicles or strip skin prone to keratosis pilaris.
Cetearyl Alcohol, Glycine Soja Oil, Lauric Acid, Myristic Acid, Palmitic Acid, Stearic Acid, Tocopherol
May Worsen Oily Skin3
May increase shine or excess oil.
May Trigger Acne6
Can clog pores or trigger breakouts.
Cetearyl Alcohol, Ethylhexyl Stearate, Glycine Soja Oil, Sorbitan Isostearate, Steareth-2, Tocopherol
May Worsen Seborrheic Dermatitis28
May feed the yeast involved in seborrheic dermatitis.
Acetyl Heptapeptide-4, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-11, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Behenyl Alcohol, Butyrospermum Parkii Butter, Cetearyl Alcohol, Cetearyl Glucoside, Ethylhexyl Stearate, Glycine Soja Oil, Hydrogenated Lecithin, Jojoba Esters, Lauroyl Lysine, Methyl Glucose Sesquistearate, Octyldodecyl Myristate, Palmitoyl Hexapeptide-12, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Panax Ginseng Seed Oil, Phytosteryl Isostearyl Dimer Dilinoleate, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Polyglyceryl-3 Methylglucose Distearate, Polysorbate 60, Sodium Acetylated Hyaluronate, Sorbitan Isostearate, Steareth-2, Steareth-21
May Worsen Keratosis Pilaris6
May clog follicles or strip skin prone to keratosis pilaris.
Cetearyl Alcohol, Ethylhexyl Stearate, Glycine Soja Oil, Sorbitan Isostearate, Steareth-2, Tocopherol
May Worsen Oily Skin4
May increase shine or excess oil.
Butyrospermum Parkii Butter, Glycine Soja Oil, Panax Ginseng Seed Oil, Squalane
Ingredients Side-by-side
Skin Conditioning
Water (in both products)
Skin Conditioning
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
1,2-Hexanediol (in both products)
Skin Conditioning
Glyceryl Polymethacrylate (in both products)
Viscosity Controlling
Pentaerythrityl Tetraethylhexanoate
Emollient
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Hydrogenated Poly(C6-14 Olefin)
Emollient
Polyglyceryl-3 Methylglucose Distearate (in both products)
Emulsifying
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
1,2-Hexanediol (in both products)
Skin Conditioning
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 →Propanediol
Solvent, Viscosity Controlling
Propanediol is the organic compound that conforms to the formula
Learn more about Propanediol →Water
Antiplaque, Skin Conditioning, Solvent
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Learn more about Water →Dipropylene Glycol
Fragrance, Perfuming, Solvent, Viscosity Controlling
1,1'-Oxydipropan-2-ol; Oxydipropan-2-ol; Hydroxypropyloxypropanol
Learn more about Dipropylene Glycol →Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Squalane
Hair Conditioning, Refatting, Skin Conditioning, Emollient
Squalane is a face oil.
Learn more about Squalane →Glyceryl Polymethacrylate
Viscosity Controlling
2-Propenoic acid, 2-methyl-, homopolymer, ester with 1,2,3-propanetriol
Learn more about Glyceryl Polymethacrylate →Cetearyl Alcohol
Emulsion Stabilising, Opacifying, Emollient, Cleansing, Emulsifying, Foam Boosting, Viscosity Controlling
Cetearyl Alcohol isn't fungal acne safe.
Learn more about Cetearyl Alcohol →
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