shake your bottle gently for about 2 mins, have your syringes ready to go beside you. Fill the syringe with your dose, keep the syringe moving, shaking as you are preparing to shoot. Find your site, and shoot it, if you feel a bit of resistance,slightly pull back on the plunger, and try and inject, if it ain't going in...pull the needle out and give up and start drinking it. I wouldn't shoot any Winstrol (winny) that can't get thru a 23g