BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER

Restricted CAS: 158451-77-5 (generic)CosIng #83233

BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER is permitted in cosmetics in the EU with restrictions — Annex III, entry 186 of Regulation (EC) No 1223/2009. Review the conditions of use, permitted concentration and Safety Gate alerts.

Regulatory status as of 2026-08-28 (per the CosIng database).

About the ingredient

Bis-Isobutyl PEG-24/PPG-7/Dimethicone Copolymer is a block copolymer of polyethylene glycol, polypropylene glycol and Dimethicone containing an average of 24 moles of ethylene oxide and 7 moles of propylene oxide

EU regulatory status

Annex of Regulation (EC) No 1223/2009: III/186

Source: the European Commission's official CosIng database and Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products. How we assess ingredients — full methodology.

Last updated:

Functions in cosmetics

Frequently asked questions

  • Is BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER safe in cosmetics?

    BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER is permitted in cosmetics in the EU, but subject to the conditions set out in Regulation (EC) No 1223/2009 — typically a maximum concentration, product category or a mandatory warning on the packaging. Manufacturers must comply with these limits.

  • In which annex of Regulation 1223/2009 is BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER listed?

    BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER is listed under reference III/186 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. The first part (Roman numeral) indicates the annex: II – prohibited substances, III – substances restricted by conditions, IV – permitted colorants, V – permitted preservatives, VI – permitted UV filters.

  • What functions does BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER perform in cosmetics?

    According to the European Commission's CosIng database, BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER performs the following functions in cosmetics: FILM FORMING, HUMECTANT. Functions are defined in the CosIng glossary and describe the technological role of a substance in the finished product.

  • Are there Safety Gate alerts concerning BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER?

    Our copy of the EU Safety Gate database currently contains no alerts linking BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.

Want to know when a cosmetic on your shelf gets recalled?

BeautyGuard lets you add cosmetics to a watchlist and cross-check them against the EU Safety Gate database. See plan details and email notifications on the pricing page.