How does hair grow?
This is a pretty good video showing how hair grows. It also explains how you can lose about 100 hairs a day. I’m not sure I agree with one part where they say hair can be repaired only when it is attached to the follicle but I’ll give them a pass on this minor detail. Overall, good job. For a cosmetic chemist it is important to know the basic biology of how hair grows and how skin grows.
Enjoy.