Will the new hair may grow slower and avoid needing trimmed?

Eyebrow transplant is a viable option for someone with permanent eyebrow loss. This technology has come a long way in recent years, and while head hair transplanted to the eyebrow will still grow at its innate speed and length (which would require frequent trimming), there are other donor options available in the care of advanced FUE practitioners. I have had success with transplanting leg hair using the uGraft. Since leg hair is of a similar disposition to eyebrow hair, including curvature, length, and growth rate, it is ideal, in selected cases, to use for eyebrow transplantation. Another favorable reason is that leg hair requires less frequent trimming, and with FUE uGraft, scarring is typically minimal.  Where leg hair is not available or suitable, I have used nape hair for similar reasons.

Hello,There are various methods to thicken eyebrows:
Latisse- off label use has reportedly helped some patientsEyebrow transplantation- We use FUE (off-label use of ARTAS) with regenerative techniques to ensure healthy looking browsMicroblading- Tattooing of the eyebrows which lasts between 6 months to a yearBest,Anil Shah

Eyebrow transplant is a great option for many patients due to trauma, over-plucking/tweezing, or other issues. With today's technology, we can create very aesthetically-pleasing results. The transplanted hairs will retain their donor characteristics and will require trimming.
All the best,