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Ingredient name record

Polyquaternium-51

Evidence at a glance

2official function labelsIngredient context

0selected human studiesNot a full review

0selected legal receiptsNot a compliance verdict

18product recordsRecorded occurrences

Evidence coverage, not an efficacy or safety score.

Identity & coverage details

Official CosIng inventory context recorded; chemical identity and the complete current regulatory profile remain unverified.

Recorded presence is not a safety rating, recommended dose or benefit claim.

Identity and formulation context

Names are indexed using case and whitespace normalization. Botanical, chemical and marketing identities have not been independently equated.

Functions listed by CosIng

FILM FORMINGSKIN CONDITIONING

Inventory functions describe the ingredient entry, not a finished product’s effects.

How this inventory match is used

The European Commission’s CosIng inventory is informational. An entry is not permission to use an ingredient or a safety assessment. Listed functions describe the inventory entry; they do not establish a finished product’s effects. The match uses the exact ingredient name, with case and whitespace normalization.

POLYQUATERNIUM-51 · Inventory identifiers

Inventory record: 58830 · Active
CAS identifiers in this entry: 125275-25-4
EC identifiers in this entry: -

Checked 2026-10-02 · Read the official CosIng entry

Products with recorded occurrences

18 product records. Matches include reviewed amount annotations where available. Open a product to see the original source token, market and date.

Rich Moist Soothing Cream — official product photograph; package size unconfirmed

Klairs · Face creamRich Moist Soothing Cream2 formula records · Observed 2026-08-15Official instructions · Checked 2026-10-02

Beige Tone-Up 365 Vegan Sunscreen — official product photograph; package size unconfirmed

AMUSE · Sunscreen lotion / fluidBeige Tone-Up 365 Vegan Sunscreen1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Dear Hydration Skin Softening Toner — official product photograph; package size unconfirmed

Banila Co · Hydrating tonerDear Hydration Skin Softening Toner2 formula records · Observed 2026-08-20Official instructions · Checked 2026-10-02

Gim PDRN Hydro Bouncy Ampoule 50ml — official product photograph; package size unconfirmed

Isntree · Ampoule / boosterGim PDRN Hydro Bouncy Ampoule 50ml1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Hyaluronic Acid Moist Cream 100ml — official product photograph; package size unconfirmed

Isntree · Face creamHyaluronic Acid Moist Cream 100ml1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Hyaluronic Acid Water Essence 50ml — official product photograph; package size unconfirmed

Isntree · Essence / essence waterHyaluronic Acid Water Essence 50ml1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Mugwort Calming Clay Mask 100ml — official product photograph; package size unconfirmed

Isntree · Format unconfirmedMugwort Calming Clay Mask 100ml1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Supple Preparation Unscented Toner — official product photograph; package size unconfirmed

Klairs · Hydrating tonerSupple Preparation Unscented Toner1 formula record · Observed 2026-08-15Official instructions · Checked 2026-10-02

Micro Hyaluronic Essence — official product photograph; package size unconfirmed

Ma:nyo · Face serumMicro Hyaluronic Essence1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-02

Derma Cream PDRN Lifting — official product photograph; package size unconfirmed

Mediheal · Face creamDerma Cream PDRN Lifting1 formula record · Observed 2026-08-15Official instructions · Checked 2026-10-02

Birch Moisturizing Serum — official product photograph; package size unconfirmed

Round Lab · Face serumBirch Moisturizing Serum1 formula record · Observed 2026-08-15Official instructions · Checked 2026-10-02

Pro Cica Reedle Shot 100 2 Step Hydrogel Mask 4ea — official product photograph; package size unconfirmed

VT Cosmetics · Hydrogel / collagen maskPro Cica Reedle Shot 100 2 Step Hydrogel Mask 4ea1 formula record · Observed 2026-08-20Official instructions · Checked 2026-10-03

No.3 Radiance Glowing Jumbo Essence Pads — official product photograph; package size unconfirmed

numbuzin · Format unconfirmedNo.3 Radiance Glowing Jumbo Essence Pads2 formula records · Observed 2026-08-15

No.4 Hydrating Glow Mineral Toner — official product photograph; package size unconfirmed

numbuzin · Hydrating tonerNo.4 Hydrating Glow Mineral Toner2 formula records · Observed 2026-08-15

Gummy sheet mask Madecassoside sticker(10 sheets) — official product photograph; package size unconfirmed

Abib · Sheet maskGummy sheet mask Madecassoside sticker(10 sheets)1 formula record · Observed 2026-08-20

Jericho rose PHA toner Skin booster — official product photograph; package size unconfirmed

Abib · Hydrating tonerJericho rose PHA toner Skin booster1 formula record · Observed 2026-08-20 Photo unavailabled'Alba · Hydrating tonerd'Alba Vita Toning Serum Toner 180ml1 formula record · Observed 2026-08-15

No.3 Super Glowing Essence Toner — official product photograph; package size unconfirmed

numbuzin · Essence / essence waterNo.3 Super Glowing Essence Toner1 formula record · Observed 2026-08-15

Related product examples are shown above. Search all recorded products.