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,

There is no evidence in recipient dominance.  If you have scalp hair transplanted to the eyebrows, it will grow like sclap hair.

Eyebrow transplantation consists of the dermal extraction of hair follicles –which are genetically resistant to thinning- located on the posterior scalp between the ears, and the dermal transplantation of these follicles on the site where you want eyebrow hairs to grow. The transplanted eyebrow hairs do not fall off, and the result is permanent.
Eyebrow transplantation is actually a kind of hair transplantation. Hair follicles are used in eyebrow transplantation. Eyebrows are made to grow by transplanting hairs in the place of eyebrow hairs.
Similar to hair transplantation, two methods can be used in eyebrow transplantation in order to extract hair follicles. These methods are FUT and FUE.
FUT method is not generally preferred in eyebrow transplantation operations. This method requires an incision on the posterior scalp and sutures. The thin but permanent scar it leaves is the most important disadvantage of this method.
On the other hand, hair follicles are individually extracted from the posterior scalp by the FUE eyebrow transplantation without making any incisions or sutures. This procedure leaves no permanent scars.