1. Surfactants
Anionic surfactants (fatty alcohol sulfates, sodium lauroyl sarcosinate, potassium cocoyl glutamate, etc.); amphoteric surfactants (betaines, sodium cocoampho-propionate, amino acid-based surfactants, etc.); and non-ionic surfactants (amine oxides, alkyl glucosides, PEG-40 castor oil, etc.).
2. Foam Boosters
Currently, betaines are primarily used as foam boosters; in addition to enhancing foam volume and quality, they also improve the product's mildness. Small amounts of polymers and amino acid-based surfactants are also added to further refine foam quality.
3. pH Adjusters
The typical pH range for shower products is 5.5–7.0.
4. Viscosity Modifiers
There are two main categories: ① Water-soluble polymers; ② Organic and inorganic salts.
5. Others
Fragrances, and special additives (various emollients, natural extracts, antimicrobial agents, etc.).