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What is Acetyl Tetrapeptide-11?

Skin conditioning

Acetyl Tetrapeptide-11 is a skin conditioner that helps soften and smooth the surface.

This ingredient is listed in CosIng, the EU's cosmetic ingredient database. CosIng lists what it's used for as: Skin conditioning.

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

Which products feature it?

6 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 6.

  • It's made for better hydration and better barrier support.

    Key: Acetyl Tetrapeptide-11 (#26 on the ingredient list), Limnanthes Alba (Meadowfoam) Seed Oil, Squalane

    14 claims, summarized
    Only partly backed:
    better hydration · firmer skin · better barrier support
    Don't count on:
    a smoother skin texture · calmer skin
    See each claim

    claims, checked

    • Melting cream into a toner, lightly yet deeply, a genius moisturizing tonerplausible, not tested
    • Melting Cerapeptide cream into a skin, it fills moisture deeply from the very first step and improves inner elasticity and the barrier too #FirstMoistureSkinpartly backed
    • A high-moisture toner that melts Cerapeptide cream into a skin and cares for moisture as well as elasticity and the barrierpartly backed
    • 22.84% increase in skin glow immediately after usepartly backed
    • High pressure blending splits Cerapeptide cream into 1/300* units and stabilizes it as a skinpartly backed
    • Mild even for sensitive skin, a low-irritation formulapartly backed
    • 'CerapeptideTM' is an ingredient combining ceramide, which strengthens the skin barrier, with peptides, which raise the skin's supporting power, and along with a moisturizing effect it builds up the skin's ability to hold moisture.partly backed
    • 47.64% reduction in dead skin cell amount immediately after useoverstated
    • Soothing of temporary redness caused by external irritation, redness recovery +40.76 %overstated
    • A fresh milky texture usable in any season by any skin typeoverstated
    • Immediately after use the skin's moisture content increases 8 times, and it presents a 120 hour inner-skin moisturizing effect (Elead Co., Ltd., test subjects: 30 women in their 20s and 30s, test period: 2022.07.28~2022.08).overstated
    • A change visible in just 4 weeks, half a bottle * of useno supporting source found
    • Faster absorption than before, through special formulation technologyno supporting source found
    • Two peptides that have efficacy for moisture and the barrier          and are effective for defending against elasticity loss and boosting elasticity, optimized for a skin formulation           contradicted by sources
  • It's made for better hydration.

    Key: Acetyl Tetrapeptide-11 (#26 on the ingredient list), Limnanthes Alba (Meadowfoam) Seed Oil, Hyaluronic Acid

    6 claims, summarized
    Only partly backed:
    better hydration · a smoother skin texture
    See each claim

    claims, checked

    • It is a highly moisturizing mist that contains the moisturizing ingredients of LANEIGE Cream Skin in a mist format, allowing you to conveniently replenish moisture anytime, anywhere.plausible, not tested
    • It can be used as often as needed when you feel dryness after makeup, and it adds a moist hydrating feel to help maintain comfortable skin.plausible, not tested
    • LANEIGE Cream Skin Mist 30ml fills the skin with comfortable moisture deep inside even in dry moments through a dewy mist spray that melts cream into skin. The lightly absorbed milky texture adds radiance without emphasizing dead skin cells, and helps maintain moisture condition frequently without burden even on sensitive days.partly backed
    • A moisturizing mist that melts an entire jar of cream to give the skin moisture and radiance.nothing specific to check
    • While regular mists focus on supplying moisture, Cream Skin Mist delivers a richer moisturizing sensation to dry skin by incorporating Cream Skin's moisturizing care.nothing specific to check
    • It can be used by all skin types, and is especially recommended for skin that suffers from inner dryness or that needs moisture management all day long.nothing specific to check
  • It's made for calmer skin and better hydration.

    Key: Acetyl Tetrapeptide-11 (#35 on the ingredient list), Niacinamide, Panthenol

    11 claims, summarized
    Only partly backed:
    better hydration · calmer skin (amount unknown) · less shine · less visible pores
    Free of:
    the ingredients it lists
    See each claim

    claims, checked

    • A temporary effect of decreasing skin temperature by -4.99 degrees through immediate cooling was confirmed (same test conditions).backed by evidence
    • Contains the Zinc-Pep™ complex, Ectoin, and Panthenol to comfortably soothe skin sensitized by external irritants and help maintain healthy skin condition.plausible, not tested
    • A product that cares for the oil-moisture balance by applying the Zinc-Pep™ complex combining zinc and peptides to the cream-skin technology in which cream is melted into skin, and helps with skin soothing, skin texture refinement, and fresh moisturization.partly backed
    • While regular cream skin focuses on deep moisturization and skin barrier care, gel cream skin focuses on oil-moisture balance, skin soothing, and skin texture refinement, so even moisture-deficient oily skin that worries about both oiliness and inner dryness can use it without burden.partly backed
    • Stabilizes gel cream ingredients in toner with Micro Blending Technology, allowing faster, fresher absorption without stickiness (own report, sensoroid friction coefficient measurement, compared to gel cream).partly backed
    • Compared to no application, less oil increase appears after 12 hours, controlling skin oil without inner dryness for 12 hours.partly backed
    • After 4 weeks of use, temporary results were confirmed that visible pores improved by 36.05% in volume, 31.89% in area, 22.01% in density, 21.97% in count, and pore area elasticity improved by 17.47% (same test conditions).partly backed
    • With a non-sticky, fresh water-type texture, it can be used without burden even on moisture-deficient oily skin and oily skin, and helps with soothing, skin oil control, skin texture refinement, and inner moisturization.partly backed
    • In a human application test, strengthening of oil-moisture balance by 59.32% and reduction of sebum secretion by 45.34% were confirmed immediately after use (2024-11-27~2025-01-03, 33 multiracial adult women aged 19-49, (Global Medical Research Center Co., Ltd.)).overstated
    • Immediately after use, in a satisfaction survey compared to our own toner, makeup adherence and pick-up and skin texture refinement were answered as 100%, and after 2 weeks of use, oil control continuation without dryness was reported as 100%, makeup longevity improvement as 96.9%, and a feeling of skin becoming clearer as 93.9% (product use satisfaction survey results).overstated
    • Moisturizing power at the level of gel cream was confirmed even in the toner formulation (result of comparison of moisturizing power with gel cream 24 hours after product use).no supporting source found
  • Product photo of Jaeum Saengsu

    Sulwhasoo

    Jaeum Saengsu

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

    Key: Acetyl Tetrapeptide-11 (#38 on the ingredient list), Panax Ginseng Root Water, Niacinamide

    4 claims, summarized
    You can expect:
    softer-looking fine lines
    Don't count on:
    firmer skin
    See each claim

    claims, checked

    • It is a functional product that helps with wrinkle improvement.backed by evidence
    • Morning and evening, take an appropriate amount, spread it from the inside of the face outward, then pat lightly to absorb.backed by evidence
    • It presents dense moisture and elasticity deep into the skin.overstated
    • Densely filled moisture elasticitynothing specific to check
  • Key: Acetyl Tetrapeptide-11 (#38 on the ingredient list), Niacinamide, Hydrolyzed DNA

    4 claims checked

    claims, checked

    • The PDRN H.A.™ complex, which implements the skin-boosting efficacy of a skin-specialized institution, penetrates to the deep epidermis to rebuild damaged skin barriers and help with moisture-volume barrier care, containing 0.015% PDRN it contributes to water-glow boosting and improvement of oil-moisture balance, recovery & moisturizing effects have been verified, helping to improve skin barrier function and enhance moisture elasticity, after 4 weeks of use, survey evaluation results (test institution: Global Medical Research Center) confirmed it helps restore skin condition, it is absorbed moist and soft.partly backed
    • PDRN H.A.™ complex has been applied, and it contains 0.015% PDRN, low-molecular-weight hyaluronic acid, and an allantoin complex.partly backed
    • Emphasizing recovery & moisturizing effects and improvement of skin barrier function, after 4 weeks of use, survey evaluation results (test institution: Global Medical Research Center) confirmed it helps restore skin condition.partly backed
    • On days when dryness and roughness are frequent, the moist texture that penetrates without stickiness comfortably balances oil-moisture even on sensitive skin, bringing out a transparent water glow. The PDRN H.A. complex and barrier recovery formula gently fill daily damaged skin from within and strengthen it, so that moist elasticity and a subtle radiance last long after use.nothing specific to check