If you formulate solid shampoo bars, two ingredients appear again and again: 소듐라우릴설포아세테이트 (SLSA) 및 나트륨 코코일 이세티오네이트 (SCI). Both are anionic surfactants commonly used in solid cleansing products, and both can be used in syndet shampoo bars. But they are not interchangeable ingredients. Formulators frequently describe SCI as contributing a dense, 크리미한 거품, while SLSA is often …