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What is Hydrogenated Polyisobutene?

Role not confirmed

We haven't written up what this ingredient does yet. The products below feature it as a key ingredient.

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 ingredient is on pore-clogging ingredient lists, which matters most for skin that breaks out easily.
Marked this way on 4 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?

2 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 2.

  • Product photo of Vita Glazed Lip Mask

    TOCOBO

    Vita Glazed Lip Mask

    It's made for better hydration and a smoother skin texture.

    Key Hydrogenated Polyisobutene (#1 on the ingredient list), Rubus Idaeus (Raspberry) Seed Oil/tocopheryl Succinate Aminopropanediol Esters, Jojoba Seed Oil

    Olive Young USOfficial (Korean)
    31 claims, summarized
    Only partly backed:
    better hydration (amount unknown) · a smoother skin texture (amount unknown) · better barrier support (amount unknown) · calmer skin (amount unknown)
    Free of:
    the ingredients it lists
    Tests passed:
    dermatologist check · skin irritation
    See each claim

    Claims, checked

    • 36 months from manufacturing date / 12 months after openingbacked by evidence
    • VITASKIN E 100PPM / Olive Oil 30,000PPM / Pomegranate Oleoactive 100PPMbacked by evidence
    • A shiny glazed melting texture that makes you want to keep applying.backed by evidence
    • A salmon pink formula melts gently onto the lips, providing a glazed, bouncy shine.backed by evidence
    • * Subject to the properties of the above ingredients.backed by evidence
    • Vita Glazed Lip Maskbacked by evidence
    • Use in various ways depending on lip skin condition: Lip Sleeping Mask (apply generously when dead skin is noticeable and lips are particularly dry, to care for dead skin while sleeping) / Daily Lip Balm (reapply frequently whenever lips feel dry for high-moisture care) / Bouncy Lip Gloss (when you want a bouncy gloss, pairs with any lip color for a lively lip look)plausible, not tested
    • An ultra-moisturizing overnight vegan lip mask that creates dead-skin-free, moist, bouncy wannabe lips.partly backed
    • Ultra-moisturizing overnight vegan lip carepartly backed
    • Ultra-moisturizing vegan night lip carepartly backed
    • ratingValue 4.8 / reviewCount 315partly backed
    • Ultra-moisturizing overnight lip care for dead-skin-free wannabe lipspartly backed
    • Ultra/High/Moisturizing/Dead-Skin Carepartly backed
    • Overnight Lip Mask melts lip dead skin away overnight and maintains long-lasting lip softness.partly backed
    • Dead Skin OUT / Nutrition Supply / Irritation NOpartly backed
    • Delicate lip skin that easily becomes rough! VITASKIN E, rich in vitamin E analogs and antioxidants, forms a protective film to prevent moisture evaporation together with ultra-moisturizing ingredients.partly backed
    • Moisture evaporation prevention protective film High-Fix Polymerpartly backed
    • Ultra-moisturizing vitamin E complex forms a strong moisturizing protective film on the lips, preventing moisture evaporation and caring for dead skin.partly backed
    • Glazed Texture a firm balm-type formula melts and coats tightly on lips / Easy Wash an easy-wash formula that washes off gentlypartly backed
    • Low-irritation lip care with vegan, naturally derived ingredients for sensitive lip skin.partly backed
    • VITASKIN E: Raspberry seed oil and vitamin E analogs for lip nutrition supply and barrier strengthening.partly backed
    • OLIVE OIL: Rich in polyphenols and vitamin E, soothes lip dead skin and provides powerful moisturization.partly backed
    • POMEGRANATE OLEOACTIF: Highly concentrated extract of pomegranate tree flowers prevents moisture loss on the skin surface.partly backed
    • ONLY vegan ingredients formula! Low-irritation overnight lip mask.partly backed
    • Vegan ingredients 100%, ALL EWG Green grade, excludes 20 Hwahae caution ingredients.partly backed
    • France EVE Vegan certification completed.partly backed
    • Skin irritation test result: Non-irritating [skin irritation index 0.00] Primary skin irritation test / individual differences may exist May 30 ~ June 2, 23 / Corederm Dermatology Research Institutepartly backed
    • For lips dry all 365 days #DeadSkinRemoved #MoistBouncy #UltraMoisturizingLipCareoverstated
    • During the night hours when lip moisture decreases, the golden time* when skin recovery is most active is the optimal timing for lip care * Golden time (10PM ~ 2AM)no supporting source found
    • An overnight lip mask that, used at night when skin recovery is active, soothes lip dead skin and provides moisture, delivering optimal care synergy.no supporting source found
    • LACTOBIONIC ACID: Natural-origin PHA smooths dead skin, maintains pH balance, and soothes.no supporting source found
  • Product photo of At Clinic Vorfilin Wrinkle Shot Ampoule

    Dominas

    At Clinic Vorfilin Wrinkle Shot Ampoule

    Key Hydrogenated Polyisobutene (#2 on the ingredient list), Tocopherol, Anemarrhena Asphodeloides Root Extract

    Official (Korean)
    3 claims checked

    Claims, checked

    • * Borpirine™backed by evidence
    • ** PDRNpartly backed
    • For all skin types.overstated

Are the claims about it backed up?

We checked each claim that features this ingredient. Open the list below to see the result for each one.

See the results by claim
ResultClaims
backed by evidence1 of 1

These are counts of claims, not products. One product can name the same ingredient in several claims, and we checked each one on its own.