How to preserve hot process liquid soap ?by both chemical and natural way.
)if chemical means how much grm I need to take for *100grm of shampoo base + Required quantity of water to dilute*?
Types of preservative,and their quantity .
) if natural preservatives means their quantity used for *100grm of shampoo base + Required quantity of water to dilute*.
Types of natural preservative and their quantity.
Pls sir
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Generally the shampoo base you buy already has preservatives. Sles based shampoo has parabens as preservatives and sulphate free has potassium sorbate etc., For natural shampoo, a preservative is not necessarily needed as it is a self sustaining emulsion like CP Soap