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.本發明係提供組成物,如,口腔及個人照護產品。其包括(i)一四元鋅-胺基酸或三烷基甘胺酸-鹵化物複合物,及(ii)呈游離或口腔或化妝品上可接受之鹽型式的半胱胺酸,及其製備方法和用途。