Longevity of soap

[tammyitse]

I have been using a recipe and the longevity is only at 22 and should be at least 25. What oil will give me more longevity?

 

[brujacoden]

Harder oils (look for high levels of stearic and palmitic acids in the fatty acid profile) like tallows will help. Other things you can try are additives like sodium lactate or ordinary table salt at various concentrations. But don't take those numbers too seriously. If the final soap (after the usual desiccation) is hard enough for your liking, you don't need to change a thing.

 

[tammyitse]

I do use sodium lactate. Thanks for the help.

 

[Gayla]

I use Soywax it helps too.
Happy Soaping