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What is Stearic Acid?

Cleansing

Stearic Acid is a cleansing ingredient that lifts away oil and grime.

This ingredient is listed in CosIng, the EU's cosmetic ingredient database. CosIng lists what it's used for as: Cleansing, Surfactant, emulsifying, Emulsion stabilising, Fragrance, Refatting, Surfactant, cleansing.

CosIng function classes are the EU's standard list of the jobs an ingredient does inside a product, such as moisturizing, emulsifying, or preserving.

Anything to watch out for?

Some products' ingredient lists mark this ingredient as below. If a mark's reason fits your skin, it is the ingredient to weigh in those products.

This is a fungal-acne trigger, one of the ingredients people with fungal acne avoid.
Marked this way on 217 products.
This ingredient is on pore-clogging ingredient lists, which matters most for skin that breaks out easily.
Marked this way on 130 products.

Each mark comes from matching the product's full ingredient list against lists for fragrance, labeled fragrance allergens, drying alcohols, essential oils, fungal acne, pore clogging, and pregnancy caution.

Which products feature it?

9 of the 2320 products we've checked feature this as a key ingredient. Products that disclose a concentration or list it near the top of the ingredient list come first.

Showing 1 to 9.

  • Product photo of RED LACTO COLLAGEN CLEAR FOAM CLEANSER 2.0

    MEDI-PEEL

    RED LACTO COLLAGEN CLEAR FOAM CLEANSER 2.0

    Key: Stearic Acid (#4 on the ingredient list), Myristic Acid, Potassium Hydroxide

    Official (Korean)
    5 claims, summarized
    Don't count on:
    less visible pores · firmer skin
    See each claim

    claims, checked

    • 99.4% cleansing power for impurities inside poresoverstated
    • Experience skin elasticity and lifting with Medipeel's Red Lacto Collagen Clear Foam Cleanser. Clean down to the pores with aesthetic know-how.overstated
    • Red Lacto Collagen Clear Foam Cleanser 2.0overstated
    • Impurities cleanly away with the technique of an aesthetic specialist. With the power of collagen and the softness of lacto, it delivers the skin's own natural health.nothing specific to check
    • [Olive Young No. 1 item] Red Lacto Collagen Wrapping Mask 70mlnothing specific to check
  • Product photo of Salicylic Acid Daily Gentle Cleanser

    COSRX

    Salicylic Acid Daily Gentle Cleanser

    Key: Stearic Acid (#4 on the ingredient list), Salicylic Acid, Salix Alba (Willow) Bark Water

    Official (Korean)
    3 claims checked

    claims, checked

    • For use on oily and combination skinplausible, not tested
    • Salicylic Acid Daily Gentle Cleanserpartly backed
    • Salicylic Acid Daily Gentle Cleanseroverstated
  • Product photo of Micro Pore Cleansing Oil

    LAGOM

    Micro Pore Cleansing Oil

    Key: Stearic Acid (#5 on the ingredient list), Palmitic Acid, Lauric Acid

    AmazonOfficial (Korean)
    8 claims checked

    claims, checked

    • A cleansing oil with a light texturepartly backed
    • Core ingredients: hydroxyethyl urea, soapberry extract, soapwort leaf extractpartly backed
    • From 99% perfect cleansing to pore tighteningoverstated
    • Moisture cleansing oiloverstated
    • With fine micro oil particlesno supporting source found
    • 99% perfect cleansingno supporting source found
    • 99% cleansing of pore impuritiesno supporting source found
    • Deep cleansingㅣultrafine dust cleansingno supporting source found

  • THE FACE SHOP

    Migamsu Bright Facial Cleansing Foam

    Key: Stearic Acid (#5 on the ingredient list), Myristic Acid, Potassium Hydroxide

    1 claim checked

    claims, checked

    • Migamsu Brightno supporting source found
  • Product photo of Volcanic BHA Pore Cleansing Foam

    innisfree

    Volcanic BHA Pore Cleansing Foam

    Key: Stearic Acid (#7 on the ingredient list), Salicylic Acid, Volcanic Ash

    Brand storeOfficial (Korean)
    8 claims, summarized
    You can expect:
    clearer-looking skin
    Don't count on:
    less visible pores · a smoother skin texture · less shine
    See each claim

    claims, checked

    • Functional cosmetic for acne-prone skin relief 2023011322backed by evidence
    • The hot cost-effective cleansing foam recognized by the Korea Consumer Agencyplausible, not tested
    • With dense, creamy fresh cream foam, gentle and clean pore cleansing in every corner.plausible, not tested
    • Actual test results confirmed 94% improvement in fine dust cleansing effect (IEC Korea Co., Ltd., 2021. 10. 25, 33 adults)partly backed
    • BHA (salicylic acid 5,000ppm): pore impurity care (dissolves sebum inside pores), dead skin and sebum careoverstated
    • Acne-prone skin relief functional completion, all hypoallergenic tests completed, so even sensitive skin can use with confidence.overstated
    • Confirmed strong SPF cleansing power by removing 100% or more of sunscreen (in-vitro test, no difference before and after product application and removal on artificial leather)overstated
    • Vegan certificationno supporting source found
  • Product photo of Soybean Panthenol Toner

    Round Lab

    Soybean Panthenol Toner

    It's registered in Korea as a functional cosmetic for wrinkle improvement.

    Key: Stearic Acid (#13 on the ingredient list), Panthenol, Glycine Max (Soybean) Seed Extract

    Official (Korean)
    32 claims, summarized
    You can expect:
    softer-looking fine lines · better hydration
    See each claim

    claims, checked

    • Wrinkle improvement functional cosmeticsbacked by evidence
    • We included 'Panthenol', the synonym for moisturizing.backed by evidence
    • Gap-free moisturizing with Se.Col.Ji ingredientsbacked by evidence
    • We recommend Yakong Panthenol Toner that delivers deep and fast moisturizing from the first step!plausible, not tested
    • Panthenol is an ingredient that changes into vitamin B5 when absorbed into the skin and cares for moisturizing.plausible, not tested
    • Even richer moisturizing feel containing the rich nutrition of carefully selected Yakongplausible, not tested
    • Soft and smooth for roughened skin textureplausible, not tested
    • Cream-type moisturizing toner that absorbs smoothlyplausible, not tested
    • The cream-type moisturizing texture is densely filled into the skin, delivering a soft and deep moisturizing feel without stickiness.plausible, not tested
    • It was produced using soy ink on an FSC-certified carton to protect forests.plausible, not tested
    • Product effect proven by 100% satisfactionpartly backed
    • It seems that the moisturizing feel is sufficient with the toner alone.partly backed
    • It seems that inner skin tightness is improved.partly backed
    • It seems that skin has become soft.partly backed
    • It seems to absorb quickly.partly backed
    • It seems there is no stickiness or oiliness.partly backed
    • Moist smooth texture in 3 seconds on dry skin after cleansingpartly backed
    • 4-fold moisturizing charge from outside to insidepartly backed
    • 01. Outer moisturizing improvementpartly backed
    • Completion of smooth texture for rough skinpartly backed
    • Yakong grown in a clean highland area where the dawn is cold and refreshing is rich in nutrients such as protein and vitamin B, giving a deep moisturizing feel to the skin.partly backed
    • It blends ceramide, cholesterol, and fatty acids, the three essential elements for skin moisturizing, in a ratio similar to the skin structure to care for moisturizing more densely.partly backed
    • The gentle LHA+PHA ingredients for sensitive skin mildly care for the skin texture that has become flaky and rough due to dryness, arranging it into smooth skin.partly backed
    • Average skin reaction level of 0.00, judged as non-irritating according to the evaluation criteriapartly backed
    • 02. 3-layer inner moisturizing improvementno supporting source found
    • BIO INHANCER™ for deep absorptionno supporting source found
    • The patented absorption technology BIO INHANCER™ that fills moisturizing ingredients into every corner without gaps helps with deep and dense moisturizing care from the first step.no supporting source found
    • Deep efficacy delivery niosome panthenolno supporting source found
    • It contains niosome panthenol, a nano-sized double-layer structure, which absorbs densely deep into the skin and cares for moist and smooth skin.no supporting source found
    • #3SecondQuick #SmoothMoisture Tonernothing specific to check
    • When you need Yakong Panthenol Toner for dryness that cannot be resolved by various external stimuli!nothing specific to check
    • Panthenol, is just applying it the end? It must absorb well to be real mois. ture!nothing specific to check
  • Product photo of Soybean Panthenol Cream

    Round Lab

    Soybean Panthenol Cream

    It's registered in Korea as a functional cosmetic for wrinkle improvement.

    Key: Stearic Acid (#17 on the ingredient list), Panthenol, Glycine Soja Seed Extract

    Official (Korean)
    31 claims, summarized
    You can expect:
    softer-looking fine lines · better hydration · better barrier support
    Only partly backed:
    a smoother skin texture · firmer skin
    See each claim

    claims, checked

    • Anti-wrinkle functional cosmeticbacked by evidence
    • Contains 'panthenol', the byword for moisturization.backed by evidence
    • Ceramide, cholesterol, and fatty acids for a flawless moisture barrier.backed by evidence
    • dermatologically testedbacked by evidence
    • Panthenol, once absorbed into the skin, turns into Vitamin B5 and strengthens moisture and the skin barrier.plausible, not tested
    • Restore the barrier for a firm, smooth complexion.plausible, not tested
    • With the rich nutrition of Jeongseon black soybean for even deeper moisturization.plausible, not tested
    • Not heavy! A softly melting, adhesive moisturizing texture.plausible, not tested
    • The moment it touches the skin, it absorbs softly without greasiness, providing a smooth, moist moisturizing effect.plausible, not tested
    • To protect forests, it was manufactured using soy ink on FSC-certified packaging.plausible, not tested
    • Product efficacy proven by 100% satisfaction rate.partly backed
    • Moisture is felt deep into the skin.partly backed
    • It feels like the skin barrier has improved.partly backed
    • It feels like raised dead skin has been calmed.partly backed
    • The skin feels overall firm and healthier.partly backed
    • 120-hour sustained moisture, long-lastingpartly backed
    • Make the skin barrier firm!partly backed
    • Smooth bumpy skin texture!partly backed
    • Calm even tiny dead skin flakes!partly backed
    • Black soybeans grown in clean highland areas with cold, refreshing mornings are rich in protein, Vitamin B, and other nutrients, delivering deep moisture to the skin.partly backed
    • The three essential elements for skin moisture – ceramide, cholesterol, and fatty acids – are formulated in a ratio similar to skin structure, providing even denser care for moisture and the barrier.partly backed
    • Average skin response is 0.00, rated as non-irritating according to the judgment criteria.partly backed
    • Sustained for 120 hours, long-lasting moisture!partly backed
    • Niosome Panthenol for deep efficacy delivery.no supporting source found
    • Contains 50,000ppm of Niosome Panthenol, a nano-sized bilayer structure, for deep, dense absorption into the skin, leaving it moist and smooth.no supporting source found
    • Dense moisturizing power that doesn't dry even up to 10 layers.no supporting source found
    • Skin moisture improvement rate +648.93%no supporting source found
    • #120Hours #AdhesiveMoisturizingCreamnothing specific to check
    • When skin concerns pile up on a broken skin barrier, it's time for the Black Soybean Panthenol Cream!nothing specific to check
    • Panthenol, is applying it enough? A real moisture barrier needs good absorption.nothing specific to check
    • Since cosmetics come into direct contact with skin, Round Lab makes products that even sensitive skin can use with confidence.nothing specific to check
  • Product photo of Ceramide Yuzu Bio Cleansing Oil

    irecipe

    Ceramide Yuzu Bio Cleansing Oil

    Key: Stearic Acid, Ceramide, Phytosterols

    Official (Korean)
    7 claims, summarized
    Only partly backed:
    less visible pores · better barrier support
    Tests passed:
    hypoallergenic · non-comedogenic · skin irritation
    See each claim

    claims, checked

    • Sebum scaling inside pores with EZLite® low molecular weight oil, barrier care with CERAPLEX® ceramideplausible, not tested
    • PEG-free, non-comedogenic cleansing oilpartly backed
    • Blackhead and sebum scaling plus skin texture and unevenness care!partly backed
    • Clean cleansing of waterproof makeup and sunscreenpartly backed
    • Non-comedogenic, PEG-free, low irritation test completedpartly backed
    • Dermatest certification verified that the formulation is non-comedogenicpartly backed
    • A sebum scaling cleansing oil that is a low irritation vegan product yet has a result of 68% blackhead reduction after a single usecontradicted by sources

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