There are many different soap making ingredients that can be used to create soap at home. Whether it’s a base, fat, oil, nutrient, natural preservative essential oil or colorant each substance has specific benefits for soap making, and will add unique characteristics to your finished product.

Soaps are key components of most lubricating greases, which are usually emulsions of calcium soap or lithium soaps and mineral oil. These calcium- and lithium-based greases are widely used. Many other metallic soaps are also useful, including those of aluminium, sodium, and mixtures of them. Such soaps are also used as thickeners to increase the viscosity of oils. In ancient times, lubricating greases were made by the addition of lime to olive oil.