CAPB (EMERY) / EMERSENSE COCO-BETAINE

Overview

CAPB (Cocamidopropyl Betaine) by Emery Oleochemicals is a mild amphoteric surfactant widely used as a secondary surfactant in personal care formulations. It enhances foam, reduces irritation, and improves skin feel.

INCI Name

Cocamidopropyl Betaine

Key Benefits

• Mild, low-irritation surfactant — suitable for sensitive skin
• Boosts and stabilizes foam in cleansing systems
• Reduces harshness of anionic surfactants (e.g., SLES)
• Provides conditioning and antistatic effect on hair
• Compatible with cationic, anionic, and nonionic ingredients

Recommended Applications

• Shampoos & conditioners
• Body washes & shower gels
• Baby care products
• Facial cleansers
• Hand washes

Recommended Use Level

2–10% in the aqueous phase at room temperature

Solubility & Phase

Water-soluble. Add directly to the aqueous phase. No heating required.

Certifications & Grade

• Emery Oleochemicals (EMERY brand)
• Cosmetic & personal care grade

Supplier

Emery Oleochemicals

Storage

Store at room temperature (15–30°C). Keep away from freezing. Shelf life: 24 months.

Commonly Used With

CAPB works best when combined with:

• SLES 70% (Emersense ES 7062) — primary anionic surfactant in shampoo systems
• Propylene Glycol 99.5% — solvent and humectant for cleansing formulations
• Hydrolactin 2500 Milk Protein — adds conditioning to baby & sensitive skin cleansers
• SCI 85% (HY SCI) — mild solid surfactant for sulfate-free bars & cleansers

Frequently Asked Questions

Is CAPB safe for sensitive skin?

Yes. CAPB is one of the mildest amphoteric surfactants available. It is widely used in baby shampoos and sensitive skin cleansers due to its low irritation profile.

Can CAPB be used in sulfate-free shampoos?

Absolutely. CAPB is a popular choice in sulfate-free formulations as it provides foam and cleansing without the harshness of SLS/SLES-only systems. Pair it with SCI 85% for a fully sulfate-free system.

What is the ideal pH range for CAPB?

CAPB performs best at pH 4.5–7.0. It is stable across a wide pH range but optimal mildness is achieved at slightly acidic to neutral pH.

What is the difference between CAPB and SCI?

CAPB is a liquid amphoteric surfactant used as a co-surfactant, while SCI (Sodium Cocoyl Isethionate) is a solid mild primary surfactant. They are often used together in solid bars and gentle cleansers.

How much CAPB should I use in a shampoo?

Typically 3–6% active CAPB alongside 10–12% active SLES 70% gives a well-balanced, mild shampoo system.