You should take protein and creatine as your key supplements or a Weight Gainer product if you want to gain maximum mass. Take a whey protein shake 2 to 3 times per day with one serving being just before your Halo immediately after training and take creatine monohydrate powder or a creatine tablet (like Creakic or Creadex). Start off taking 4 servings per day for the first 5 days and thereafter take 1 to 2 servings per day (2 on training days and 1 on non-training days). To gain mass at the fastest rate, you can either do the Nitro/Cell stack (Nitro 3 times per day and Cell-Tech twice on training days and once on non-training days - always take one serving of Nitro immediately, followed by Cell-Tech right after training) OR you can use a weight gainer like Mutant Mass (along with powdered creatine) or Mass-Tech or Muscle Fuel Anabolic (which already contain creatine). If your diet is good (high in calories and protein), go with the Nitro/Cell stack, if your diet isn't so good, go with one of the mass gainers - start off with 2 to 3 scoops twice daily and increase until you are gaining the desired amount of weight per week (1/2 to 2 kilos).
saw my parents one weekend, was lovely. got home and my Mutant Mass had been delivered. used it as directed for 5 consecutive days. went back to see my parents the following weekend to which my mum asked - "Are you on steroids!?" the stuff is immense! I've been using it along side Mutant Creakong and i'm seeing brilliant results. I only ordered the smaller pouch as i read in the reviews that it can cause frequent trips to the loo and getting caught short in public is one of my biggest fears, but after going through the full pack and it having a minor effect on my stomach I fully intent to go back for the biggest size there is!! this is the only mass product i've tried and i see no reason to try another one. taste is amazing! mixes up pretty well although my arms/shoulder tend to be throbbing after a workout and shaking it up is tricky. would work well with a blender. MORE PLEASE :D