What Are The Hair Growth Cycles?

Hair growth in each follicle occurs in a cycle. There are three main phases of the hair growth cycle:


(active phase) This is the growing pahse when the actual hair is produced.


(resting phase) In this phase the hair stops growing but does not fall out. The follicle then recedes.


(dying off) This is when the old hair falls out ready for the follicle to grow again and produce a new hair.

Normally this cycle will continue throughout an individuals life, but some factors can influence, encourage or inhibit hair growth.

Laser hair removal treatment is most effective on hairs when they are growing in the anagen phase. This is why patients need multiple treatments to disable each new hair as it enters its growing phase.

This hair growth cycle varies greatly depending on body area. For example, the face usually has a shorter cycle so treatment can be effective at 8 weekly intervals. Other areas such as back or legs have longer cycles so treatments are more effective if spaced 8 – 12 weeks apart.


Jane Keena This article was written by Jane Keena of Complete LaserCare.
Jane qualified as a registered nurse in 1986 at Queen Alexandra Hospital Portsmouth and worked as a senior nurse in the NHS until 2001.
She left to pursue a career in laser hair removal, initially working for Boots the Chemist where she was appointed laser protection supervisor and gained a BTEC award in Laser and Intense Light Hair removal in March 2001.