Let me start off by saying that I do not consider myself to be an expert on supplements and their efficacy. I can tell you, however, that I have seen a lot of formulas in the local natural foods stores and have seen formulations that seem to have many more ingredients than the item you posted. You might want to go to your local natural foods store and just browse similar products. There is normally a "men's health" section. I normally see saw palmetto, biotin and primrose oil (anti-inflamatory) coming up as helpful in nail, hair and skin health. You might want to educate yourself online before purchasing any products.
Notice: I am not a doctor. My opinions are not necessarily those of Dr Cole. My advice is not medical advice.