Body Hair Transplantation to Head? (photo)

Body hairs are an option for hairtranspant. But the success rates with body hairtransplant (beard,chest,shoulder) is not the same in compare donor area on the temporal-parietal  and occipital part. Body hairs can transplant to increase the density on the middle –vertex part or behind the frontline.

The best donor source for transplanting scalp hair is the scalp. It has the same curl, color, thickness, and other characteristics making it the ideal first choice after natural regrowth with medication. Neck beard hair is a reasonable option once donor supply has been exhausted from the scalp if it is similar enough to scalp hair to easily blend in. In your case, your beard matches your scalp in color but due to your haircut and photo detail, curl and thickness are unable to be determined. 
I advise focusing on managing your current loss by visiting with a hair restoration surgeon, initiating medical (medication) management, and, based on your current hairstyle, consider scalp micropigmentation (tattoo) as a third (non-surgical) option to increase apparent follicle density.