Confused about SALMAN KHAN hair transplant result! (Photo)

It is not possible to gain hair with surgery since surgery is only redistributing existing hair.  There is no way to tell what you are seeing on ads.  If it looks too good to be true, then it probably is.

Assuming it's a hair transplant and not a wig, if you looked at his scalp up closely and compared it to his original hair, you would see that he actually doesn't have identical density. Hair transplants are aimed to look like full density, but in reality it's simply not feasible to achieve. A good surgeon can make lower density hair look like normal hair.

Yes , that result may achieved with HT plus coverage make up as toppic etc. Several factors play a role in determining how much density we can accomplish with  hair transplant:Donor area density, recipient site area, hair characteristics (curly versus straight hair) hair colour and hair shaft diameter are very important in determining the cosmetic density we achieve.