SLSA vs CAPB: Overview SLSA and CAPB are both widely used surfactants in personal care formulations, especially in shampoo bars, facial cleansers, body washes, and baby care products. However, they belong to different surfactant categories and play different roles in formulations. SLSA: Sodium Lauryl Sulfoacetate (anionic surfactant) CAPB: Cocamidopropyl Betaine (amphoteric surfactant) 👉 They are often used together, not as …