I used this MuscleBlaze Creatine for 1.5 month. It increased my strength and size. You can buy this product. This indian brand is cheapest than others but mixability is less.
You will to shake for 2 minutes. Now I can lift heavy weights and more reps. Keep in mind if you want to take creatine, you will have to drink minimum 4 liters water in a day otherwise you will not get good result and mix with protein or in glucose D for best result.