You've got some great products and also some solid insight and advice from
vujade .
Generally with someone 19, I'd say they aren't necessary; but they also shouldn't be detrimental in any way. If you're bulking, I would save the Epitome until a time you're looking to cut (personally). One big reason for this is that for many it will absolutely kill your appetite (I didn't get that at first, but I do now and it's hard to want to eat -- not a good thing if you're looking to bulk).
As pointed out, Absolutely Abliderated is a topical fat loss agent that helps with controlling cortisol. You'll probably
see the best results when using during a cut, but it will obviously benefit you during times of bulking as well, as it will help keep fat gain from happening/being as prominent (depending on your nutritional intake).
An Slintensity is one of my favorite products and the one you'll probably see the most benefit from right now. Save it for before meals with larger carb counts and enjoy the pump you'll get from having those carbs shuttle to your muscles instead of just into fat storage. It's not a magic pill in that there are no guarantees in that no fat will be stored, etc. -- but again, if your nutrition is on point, you should really see some great benefits from this.
If there are any other questions you have or any other ways we can be of help, just let me/us know!