Caci hand treatment our hands can often give away our age more than our faces this treatment works to soften hard skin plump out the skin on the backs of hands and gently lighten age spots the caci ultimate hand treatment combines three caci solutions to provide a tailored treatment for aged hands or hands with aged spots includes caci microdermabrasion includes caci enhanced tissue repair etr includes caci wrinkle comb microlase includes caci serum buds instant firming and ton