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US 9,750,670 B2Granted
Zinc amino acid complex with cysteine
AssigneeColgate-Palmolive Company
InventorsLong Pan, Shaotang Yuan, Shiri Nawrocki
Life of this patent
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Abstract
Provided are compositions, e.g., oral and personal care products, comprising (i) a tetrabasic zinc-amino acid or trialkyl glycine-halide complex, and (ii) cysteine in free or in orally or cosmetically acceptable salt form, together with methods of making and using the same.
Claims18
A composition comprising (i) a tetrabasic zinc-amino acid halide complex and (ii) cysteine in free or in orally or cosmetically acceptable salt form;
- wherein the amino acid is lysine, and wherein the composition comprises an amount of cysteine effective to provide a precipitate after a four-fold or higher dilution with water.
Dependencies are inferred from the claim text.