JOICO Vero K-Pak Chrome Demi-Permanent Cr�me Color is an ammonia-free, deposit-only cr�me hair color that offers all the reconstructive benefits of the Quadramine Complex in a vibrant, high-gloss color formula that lasts between four to eight weeks. JOICO Vero K-Pak Chrome is composed of an intermixable no-lift, no-fear, true color palette. JOICO Vero K-Pak Chrome is used with a special developer to deliver maximum color development without lightening the natural hair color.