... so many methods. 3.The capacity of bottles is above 20ml, and it could contain shampoo, conditioner, bath gel, body lotion ... LAURYL SULFATE , dimethyl polysiloxane,glycerin,lanolin,panthenol,Collagen protein ,preservative,essence. Shower gel: Emulsifiers, Detergents, Surfactants, Preservatives, Sodium Pamlite, Sodium Cocoate ...