It is an interesting fact that most people cannot distinguish a real Vanille from a fake one. However, this is not the case with the developers of the game. They can tell the difference and that is why they decided to create a mod that would make the game's non-HW and HW hair look more like a natural one. The mod is called Better Vanilla Hairs and Beards. It is a very simple and easy-to-use mod that can be applied to the character, Geralt. The only thing that you have to do is to download the file from the official website and install it in the game.