I never used any concealer so far.. that's why I decided to use my side hair to conceal the recipient area and it worked very well. I almost reached pre OP stage within two weeks of HT. Now after like 4 months post OP, I dont feel like trying concealer when I didn't try earlier at all.I am excited to trim my hair to see the actual change in my appearance but not sure when is the right time. May be April.