Sodium hydroxide (lye) is an essential alkali used in both cold and hot process soapmaking, where it reacts with oils and fats to create true soap through saponification. It provides the necessary chemistry for firm, ...
Sodium hydroxide (lye) is an essential alkali used in both cold and hot process soapmaking, where it reacts with oils and fats to create true soap through saponification. It provides the necessary chemistry for firm, lasting bars and allows makers to precisely control texture, hardness, and cleansing properties.
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