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

  1. Hydrate & Nourish Shampoo Bar
    → Helps create a gentle lather and creamy rinse-off feel.

  2. Matcha & Peppermint Shampoo Bar
    → Enhances cleansing power for oilier scalps without increasing dryness.

  3. 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

  1. EWG Skin Deep – Cocamidopropyl Betaine
  2. INCI Decoder – CAPB Ingredient Profile
  3. Journal of Surfactants and Detergents – “Irritation and Mildness of Amphoteric Surfactants”
  4. International Journal of Cosmetic Science – “Safety Evaluation of Cocamidopropyl Betaine in Personal Care”
  5. Handbook of Cosmetic Science – Surfactant Blends for Gentle Cleansing