Basic questions about shampoos and conditionner
Hi everyone! I’d like to ask some questions that have been on my mind for a while, hope to find some answers !
- What is the acceptable percentage of surfactants a shampoo should contain?
_ How much of a chelating agent should be in a chelating shampoo and what is the maximum percentage and the right PH?
- What is the right PH for a normal shampoo and conditionner?
-Should I add an emulsifier when formulating a shampoo or does the surfactants in it do the job ?
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