Cocamidopropyl Betaine
INCI Name: Cocamidopropyl Betaine
Function: Mild secondary surfactant, foam booster, cleansing agent, thickener
EWG Score: 1–4 (depending on purity) – Low hazard when properly formulated - (1-2: High safety 3-6: Moderate safety 7-10: Low safety)
Found In:
• Hydrate & Nourish Shampoo Bar – Oatmeal & Coconut Milk
• Matcha & Peppermint Refresh Shampoo Bar
• Hair Growth Shampoo Bar – Rosemary & Quinoa Protein
đź§ What Is Cocamidopropyl Betaine?
Cocamidopropyl Betaine (CAPB) is a mild, coconut-derived surfactant often used in natural and sensitive-skin formulations. It acts as a secondary cleanser and foam booster, helping shampoo bars create a richer, more satisfying lather — while keeping the formula low-irritation and pH balanced.
It’s derived from coconut fatty acids and modified to be more stable and effective, making it a gentler alternative to sulfates like SLS (Sodium Lauryl Sulfate).
đź’§ Hair & Scalp Benefits of Cocamidopropyl Betaine
- Enhances Foam and Spreadability
Works alongside primary surfactants (like SCI and SLSa) to boost lather without increasing harshness.
- Balances the Formula’s Mildness
Helps “buffer” stronger cleansing agents, making the shampoo bar milder and more scalp-friendly.
- Improves Detangling and Slip
Adds a touch of conditioning that helps shampoo glide through the hair more easily.
- Non-Stripping for Most Hair Types
Effectively cleanses without over-drying the scalp or damaging the protective cuticle layer.
- Reduces Static and Frizz
Offers mild conditioning benefits that make hair smoother post-wash.
🔬 The Science Behind It
Cocamidopropyl Betaine is a zwitterionic surfactant, which means it contains both positive and negative charges. This gives it a unique ability to reduce irritation from other ingredients and work well across a range of pH levels.
It is widely used in baby shampoos, facial cleansers, and sensitive-skin products because of its excellent skin compatibility when properly formulated. Any concerns about sensitivity typically stem from poor-quality or contaminated versions — not from the ingredient itself when used correctly.
✨ Why We Use It
At Originature, every ingredient has a purpose — and Cocamidopropyl Betaine is our go-to foam-enhancing, scalp-friendly cleanser. It adds richness and effectiveness to our bars, while staying true to our mission: gentle, non-toxic care that actually works.
🧴 Where You’ll Find It in Originature
- Hydrate & Nourish Shampoo Bar
→ Helps create a gentle lather and creamy rinse-off feel.
- Matcha & Peppermint Shampoo Bar
→ Enhances cleansing power for oilier scalps without increasing dryness.
- Hair Growth Shampoo Bar
→ Boosts performance while protecting fragile or thinning strands.
⚠️ Clarifying Ingredient Safety
Cocamidopropyl Betaine has received scrutiny in the past due to potential contamination with amines or impurities in poorly processed versions. However, Originature only uses high-purity, cosmetic-grade CAPB that complies with industry safety standards — ensuring its irritation risk remains low and its benefits fully intact.
📚 References
- EWG Skin Deep – Cocamidopropyl Betaine
- INCI Decoder – CAPB Ingredient Profile
- Journal of Surfactants and Detergents – “Irritation and Mildness of Amphoteric Surfactants”
- International Journal of Cosmetic Science – “Safety Evaluation of Cocamidopropyl Betaine in Personal Care”
- Handbook of Cosmetic Science – Surfactant Blends for Gentle Cleansing