Back to Ingredient Dictionary

GUANIDINE PHOSPHATE

Description

Guanidine phosphate is a potent alkaline agent commonly used in hair relaxing treatments and certain skincare formulations. This organic compound consists of a guanidine molecule bonded to a phosphate group, resulting in a highly effective pH-raising substance. In haircare applications, guanidine phosphate is often combined with calcium hydroxide to create a strong relaxing system that breaks down the disulfide bonds in hair, allowing for permanent straightening of curly or coily hair types.

The compound's ability to significantly alter hair structure makes it a key ingredient in professional-grade relaxers. However, its high alkalinity necessitates careful handling and application by trained professionals to prevent scalp irritation or hair damage. In skincare, guanidine phosphate may be used in small amounts as a pH adjuster or in specialized treatments for keratinization disorders.

While effective, guanidine phosphate-based products require proper neutralization post-treatment to restore the hair's pH balance. Users should be aware of potential side effects, including scalp sensitivity and hair porosity changes. Regular deep conditioning and protein treatments are recommended for hair treated with guanidine phosphate to maintain strength and moisture balance.