US Patent 11684558 Personal care composition preservatives level optimization

The present invention is directed to hair care composition comprising from about 8 to about 17% of one or more surfactants; from about 0.01% to about 10% of one or more surfactant soluble antidandruff agents; from about 0.01% to about 5% of one or more polyacrylate or polyacrylamide based thickening polymer; from about 0.02-0.25% salicylate salts or acids; from about 0.02-0.25% benzoate salts or acids wherein there is a weight ratio of about 1:1 to 12.5:1 for the salicylate salts or acids to benzoate salts or acids.