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A salt of guanidine and carbonic acid, used as a pH adjuster, hair waving/straightening agent, or a skin conditioning agent in cosmetic formulations.
Beneficial for
Safety summary
Can be irritating to skin and eyes, especially at higher concentrations or in formulations with high pH. Handle with care.
CAS Number
593-85-1
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.