Natural Thickeners for Liquid Soap

For thickening liquid soap made from natural oils like coconut, castor, and rice bran, especially with a natural pH around 9, several natural-derived thickeners can be used. As the staff recommended, SugarThick™ (PEG-120 Methyl Glucose Dioleate) is an excellent choice.

• SugarThick™ is derived from sugar, making it a natural plant-based option. It is effective in thickening various types of detergents, including liquid soaps, and can also help reduce potential irritation from cleansing agents. It provides a clear gel texture. It is typically used at a concentration of 1-5% (1-3% is often recommended). To incorporate it, you can add it to the formula and stir slowly, or warm it slightly (50-60°C) before adding if you want it to dissolve faster.

Another option suitable for liquid soap is EasyThick™ (POLYOXYETHYLENE GLYCERYL ISOSTEARATE).

• EasyThick™ is a thick viscous liquid that effectively thickens shampoo and liquid soap formulas, providing a clear texture. It is used at a higher rate, typically 3-15%. It requires heating to at least 80°C to dissolve properly in water before adding detergents, or heating the final formula to 80°C after adding it.

Both options can help achieve the desired viscosity for your natural liquid soap formulation.