I have noticed an important detail when you look at Before/after pictures posted by Hasson & Wong clinic in their website
If you pay attention to the background ( the blue wall behind the patient) , you can notice they use different lighting depending the picture was taken after or before, like for example here, the wall color changes
https://hassonandwong.com/hair-transplant-results/patient-1918/?v=3e8d115eb4b3
Not only just this patient , but I was feeling this is the case of all patient pictures posted.
I was wondering if they use different lighting when taking pictures after to make the transplanted hair looks thicker than it is in reality