Nanogen(concealer) after HT

[koskar]

I am now 1 month after my HT (FUE) and there is still a visible baldish at my front area of my head, especially now where i cut too short my hair for the purpose of HT-FUE.
Is it safe to use the nanogen concealer at my recipient area of my scalp in order to make an cover or this could affect the transplant grafts? My doctor said to me that it is safe to use this product after 3 weeks of HT but really i have a fear of damaging the scalp. My problem is without the nanofibres my image is really frustrated. My concern is that the a lot of the fibers set down directly at recipient area and not grab by the existent hair.