What gentle preservative should be used for this nonionic surfactant shampoo formula?
Aqua to 100%
Decyl glucoside 10% active
Capryl/capryl glucoside 14% active
Cationic guar gum 0.5%
Sweet almond oil 1%
pH 4-5 with citric acid
According to research lot of antibacterial preservatives are deactivated by nonionic surfactant like
We have decided to use caprylhydroxamic acid which is anti fungal. Just don't know which gentle antibacterial to use with it which is not deactivated by nonionic surfactant and to make it broad spectrum.
Thanks for advices ??♂️