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What is Polyquaternium-51?

Role not confirmed

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

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 Mild And Perfect Facial Peeling

    primera

    Mild And Perfect Facial Peeling

    Key Polyquaternium-51 (#21 on the ingredient list), Brassica Oleracea Italica (Broccoli) Extract, Borago Officinalis Extract

    8 claims, summarized
    Only partly backed:
    a smoother skin texture (brand's own survey of 30)
    See each claim

    Claims, checked

    • A peeling that improves skin texture through gentle exfoliation careplausible, not tested
    • A mild peeling confirmed to have zero (0.00) irritation, completed sensitive skin irritation test and cumulative irritation test (IIC Korea Co., Ltd., 2019.02.21~02.22, 33 women aged 25~35).plausible, not tested
    • Lip peeling is also possible, and results of -55% improvement in lip dead skin cells and +24% lip color boosting were confirmed (Ellead Co., Ltd., 2025.09.24~10.01, 30 women aged 22~40).plausible, not tested
    • After cleansing, apply on dry face like a mask, before peeling 30 seconds* moisture charge / Immediate moisture amount +137% in 30 seconds / Test institute: Ellead Co., Ltd. Test period: 2025.09.24 ~ 10.01 Test subjects: 30 people (22~40 years old, female)plausible, not tested
    • A zero-irritation peeling gel that gently removes old dead skin cells and pore sebum and protects the skin barrier - Mild and Perfect Facial Peelingpartly backed
    • When used before makeup, it completes a moist water-glow base to help skin receive makeup well, and immediately after use, radiance increased by 129% (self-scoring results).overstated
    • The cool moisture pack formulation lowers skin temperature by 8.3 degrees compared to immediately after warming, providing a cooling sensation to irritated skin.no supporting source found
    • Soft but perfect! Mild & Perfect Peeling NO.1 / Overwhelming sales volume, overwhelming award wins, overwhelming technology / Irritation ZERO, NO.1 peeling, cumulative 7 million units* sold, cumulative 34 award wins** / *Facial peeling line 2002-October 2024 cumulative sales volume, **2011~22 Primera Facial Mild Peeling cumulative domestic Beauty Emblem awardsnothing specific to check

  • IDEL FOR MEN

    Fresh All In One

    Key Polyquaternium-51 (#35 on the ingredient list), Niacinamide, Adenosine