Sodium Ma/Diisobutylene Copolymer
What is Sodium Ma/Diisobutylene Copolymer?
Sodium MA/Diisobutylene Copolymer is a synthetic, water-soluble anionic polymer created through the copolymerization of maleic anhydride and diisobutylene monomers, then partially neutralized with sodium hydroxide. This results in a high-molecular-weight material commonly incorporated into hair styling products, sunscreens, and makeup. In formulations, it works by evaporating water or solvents to leave behind a thin, continuous, and elastic film on the skin or hair surface. This film enhances product adherence, minimizes smudging or rinsing off during exposure to moisture, and supports extended wear without stiffness or flaking. Its amphiphilic nature aids compatibility with various cosmetic bases, contributing to smooth application and improved sensory feel in leave-on products.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Forms a protective barrier boosting water resistance in sunscreens and makeup.
Provides flexible hold for hairstyles without rigidity.
Reduces product transfer, extending wear time on skin or hair.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals seeking durable, smudge-proof makeup for daily wear. | People with rare sensitivities to synthetic polymers. |
| Active users needing water-resistant sun protection. | Individuals preferring minimalist, polymer-free formulations. |
| Those styling hair for long-lasting results during humid conditions. | Those experiencing reactions to film-forming agents in patch tests. |
Safety Notes
- Considered low hazard in cosmetic concentrations by safety assessments.
- Non-comedogenic, unlikely to clog pores on skin.
Frequently Asked Questions about Sodium Ma/Diisobutylene Copolymer
What products typically contain Sodium MA/Diisobutylene Copolymer?
Common in hair sprays, sunscreens, and long-wear makeup for film-forming effects.
Is it safe for everyday cosmetic use?
Safety reviews indicate low hazard at typical cosmetic levels.
Does it affect skin pores?
Non-comedogenic rating suggests minimal impact on pore appearance.