Etude SoonJung pH 6.5 Whip Cleanser vs COSRX: Sensitive Skin

Etude SoonJung pH 6.5 Whip Cleanser, 150ml, sells for about $17.99 (2026-09-08 retail check) and pairs a pH-6.5 glucoside surfactant base with panthenol and madecassoside, a combination meant to stop the squeaky, tight feeling that follows a harsh wash. The deciding axis for a sensitive-skin cleanser is which trigger the reader actually has: plain dryness and reactivity, a weakened lipid barrier, occasional breakouts, or a wish for gentle exfoliation alongside the soothing.

For dryness and reactivity alone, SoonJung's short ingredient list, with no fragrance, essential oils or added acids, answers that trigger directly. AESTURA Atobarrier365 Cream Cleansing Foam, ILLIYOON Ceramide Ato Concentrate Cream Cleansing Foam, COSRX Low pH Good Morning Gel Cleanser and PURE'AM Amino Acid Mild Cleanser sit on the same low-pH shelf, each solving a narrower version of the same problem.

Etude SoonJung pH 6.5 Whip Cleanser

Etude SoonJung pH 6.5 Whip Cleanser, 150ml, sells for roughly $17.99 (2026-09-08, retail listing) and whips into a soft, low-friction foam at a pH of 6.5, just above skin's own acidity.

The full formula, Water, Glycerin, Sorbitol, Propanediol, Lauryl Glucoside, Disodium Cocoyl Glutamate, Panthenol, Citric Acid, Glyceryl Caprylate, Ethylhexylglycerin, Madecassoside, Butylene Glycol, Tocopherol and Camellia Sinensis Leaf Extract, runs to thirteen ingredients with no fragrance, essential oil or added acid. Panthenol draws water into the surface and Madecassoside, drawn from Centella asiatica, targets redness, and the brand states the mix is 98% naturally derived.

The cleanser drops sulfates for Lauryl Glucoside and Disodium Cocoyl Glutamate, two low-irritation surfactants, and skips the ceramide, ceramide-precursor or acid actives found in several of the cleansers below.

• Free of fragrance, mineral oil, silicone, paraben and PEG surfactants
• 98% naturally-derived ingredient content per product packaging
• Available in 150ml and 250ml

SoonJung suits skin whose only complaint is post-wash tightness, with no need for added lipids or exfoliating acids.

PURE'AM Amino Acid Mild Cleanser

PURE'AM Amino Acid Mild Cleanser, 120ml, lists at $23.00 on the official store (pureambeauty.com, 2026-09-08), and its surfactant base is Sodium Cocoyl Glycinate and Sodium Cocoyl Glutamate, an amino-acid pairing that produces a fine micro-lather instead of a stripping one.

Under 0.5% Salicylic Acid sits alongside Dandelion (Taraxacum Officinale) Leaf Extract, Tea Tree Leaf Extract, Allantoin and Trehalose, so the wash lifts dead skin and excess oil while the humectants and plant extracts hold moisture in place. Bifida and Lactobacillus ferment lysates round out the formula as fermentation-derived soothing agents.

Because the surfactant load sits at amino-acid strength, the wash keeps skin feeling soft through the day, and the same wash still clears excess oil and congestion that a purely soothing formula leaves behind.

• Amino-acid surfactant base uses Sodium Cocoyl Glycinate and Sodium Cocoyl Glutamate as its primary cleansing agents
• Under 0.5% Salicylic Acid gives light exfoliation without a separate acid step
• Dandelion and tea tree extracts add plant-based soothing on top of the surfactant choice
• Formulated for a wide skin-type range, including sensitive, dry and combination skin

For sensitive skin that also deals with occasional congestion, dullness or slow-clearing oil, PURE'AM Amino Acid Mild Cleanser is the pick, since its low-dose Salicylic Acid adds an exfoliating step beyond SoonJung's soothing-only formula.

AESTURA Atobarrier365 Cream Cleansing Foam

AESTURA Atobarrier365 Cream Cleansing Foam, sold in a 150ml format, priced from about $21.00 at Sephora's 2026 launch (checked 2026-09-08), foams at a mildly acidic pH near 6.0.

Its listed formula runs Water, Glycerin, Sorbitol, Propanediol, Coco-Glucoside, Caprylyl/Capryl Glucoside, Disodium Cocoamphodiacetate, Disodium Cocoyl Glutamate, Sodium Chloride, Citric Acid, Glyceryl Caprylate, Disodium EDTA, Ethylhexylglycerin, Butylene Glycol, Tocopherol and Camellia Sinensis Leaf Extract. AESTURA markets the line with a Triple Lipid Complex of ceramides, fatty acids and cholesterol, and the cleanser itself is described as hypoallergenic, fragrance-free and skin-irritation tested.

• Mildly acidic pH near 6.0, close to the skin's own level
• Glucoside and glutamate surfactant base, free of sulfates
• Marketed for normal, dry, combination and sensitive skin

AESTURA suits readers who want a dermatologist-tested, low-pH wash paired with a barrier-support routine built around its Triple Lipid Complex products.

ILLIYOON Ceramide Ato Concentrate Cream Cleansing Foam

ILLIYOON Ceramide Ato Concentrate Cream Cleansing Foam is sold at 120g and is formulated with Ceramide NP and Phytosphingosine as its lead barrier-support actives, alongside Allantoin for irritation relief.

Salix Alba (Willow) Bark Extract sits in the formula as a mild exfoliant, and the surfactant system combines Sodium Cocoyl Isethionate with Disodium Cocoamphodiacetate, a low-pH pairing built for a gentle wash. ILLIYOON positions the line for barrier-compromised and dry, sensitive skin.

• Ceramide NP and Phytosphingosine target lipid-barrier support directly in the wash step
• Allantoin and Salix Alba Bark Extract add soothing plus a mild exfoliating action
• Sodium Cocoyl Isethionate surfactant base is low-irritation

ILLIYOON suits readers who want ceramide-forward barrier support combined with a gentle exfoliating texture in the same wash.

COSRX Low pH Good Morning Gel Cleanser

COSRX Low pH Good Morning Gel Cleanser, 150ml, sells for about $11.61 on Amazon (checked 2026-09-08) and gels into a low-friction wash at a mildly acidic pH.

The formula lists 1,2-Hexanediol, Allantoin, Betaine Salicylate, Butylene Glycol, Cocamidopropyl Betaine, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Sodium Lauroyl Methyl Isethionate and Pueraria Lobata Root Extract among its ingredients. Betaine Salicylate works as a mild BHA-type exfoliant, and Tea Tree Leaf Oil adds an essential-oil-derived component that SoonJung's formula omits entirely.

• Betaine Salicylate gives light BHA-style exfoliation
• Allantoin and Cocamidopropyl Betaine soften the surfactant base
• Tea Tree Leaf Oil and salicylate content have triggered tightness or irritation in some user reports on sensitive skin

COSRX suits sensitive skin that also breaks out and can tolerate a mild BHA and tea tree oil, a narrower fit than SoonJung's plain-soothing base.

Sources: Etude SoonJung INCI record, AESTURA official product page, ILLIYOON ingredient record, COSRX official product page.