some strong weight gainers is what you need for some mass try any weight gainer protein shake but look for high calories in them around 600-800 cal
per servin ok this will get you kick started
hey bro you need a good protein powder, creatine, multivitamin and a good pre workout supp such as no xplode. not too mention the best supplement of all... food! eat 6-7 clean meals a day bro. enjoy