Week 5 of 52 Week Healthy Hair Growth Challenge Welcome to Week 5 of 52 Week Healthy Hair Growth Challenge. This week we will focus on making co-washing a part of our regimen. Although I only co-wash my ha… Related posts: Week 7 of 52 Week Healthy Hair Growth Challenge (Protective Style Pt 2) Week 2 of 52 Week Healthy Hair Growth Challenge Week 7 of 52 Week Healthy Hair Growth Challenge 2013 Beard Growth Project – Week 11 Return of the Straight Razor