Many people stop at their jaw bone when applying their skin care, but the first place that shows age on someone is their neck. The skin on your neck is thin, making it more susceptible to sun damage, which leads to sagging and deep lines. The best way to treat the neck area is to use a product with peptides or retonoids, which will help firm the skin and soften wrinkles. Strivectin Neck Cream and ReVive Fermitif Neck Renewal Cream are two products that claim to treat wrinkles and skin on the neck. And always apply sunscreen to your neck and decolletage, because the skin is quite sensitive.