4 Weekly treatments. VO5 Hot Oil Shower Works works with the heat of your shower. Color Keeper extends the life of color treated hair. No pre-heating needed. This treatment, used once a week, dramatically revitalizes color treated hair. Use between color treatments to protect vibrancy and shine, extending the life of color treated hair. UV shield helps protect color treated hair from sun damage. Works with the heat of your shower to dramatically improve the condition of color treated hair. Exclusive formula with Hair Strengthening Complex doubles the strength of hair that's been weakened by color treatments. VO5 dramatically revitalizes hair.