Eyebrows don't grow beyond ceain length as they have a sho ?

Ans. is 'a' i.e., Anagen phase Hair grows in cycles of various phases. Anagen is growth phase. Catagen is involuting or regression phase. Telogen is resting phase. Exogen is shedding phase. Normally 90% of the follicles are in anagen phase, 10-14% are in Telogen and 1-2 % are in catagen. The cycles duration is variable for the different pas of the body. For eyebrows, the cycle is finished in 3-4 months while for scalp it takes 3-4 years to finish. This is the reason why eyebrows have much shoer length limit as compared to scalp hair.