Cationic Guar in Detergent-Free Liquid Soap

Cationic Guar, such as GuarCat™ Standard, GuarCat™ Weight-less, and GuarCat™ Clear, is primarily designed for use in hair products like shampoos and conditioners. Its main function is to coat the hair strands, providing conditioning, reducing tangling, and making hair feel soft and smooth.

When used in a liquid soap or body wash, especially a detergent-free formula like the one you described (made from oil and a mild base), Cationic Guar will also coat the skin. This coating effect can make the skin feel slippery after rinsing. Some users may like this feeling, as it can feel moisturizing, while others may dislike it, perceiving that the skin is not thoroughly clean.

In addition to its conditioning/coating effect, Cationic Guar also acts as a thickener, which could help achieve the desired viscosity in your liquid soap formula.

Therefore, while you can use Cationic Guar in your detergent-free liquid soap, its primary benefit is for hair. You should consider if the slippery feel it imparts on the skin is a desirable characteristic for your product.