
Consists of 3 phases :
First phase : Anagen (Growth phase)
- Hair grows actively for 3 to 5 years.

Second phase : Catagen (Transitional phase)
- Hair stops growing
- Lasts about 2 to 3 weeks

Third phase : Telogen (Resting phase)
- Hair follicle rests for 2 to 3 months then falls out.