This stuff is amazing, I have been along time user of Anabolic Pump by USP labs and this is a similar product, but more geared for pre-workout meals. Upon taking Pslin you will notice an increase in appetite within about 10-15 minutes. Depending on the amount of carbohydrates taken in you will get a pump during your workout that is absolutely unreal. This blows any NO2 product out of the water. Recovery is improved greatly, strength and density are also outstanding while using this product. Also this product allows you to better utilize creatine and other pre-workout supplements. The only downsides are that it may cause gas and bloating depending on your meal, and it can be hard to find the exact timing and type of carbohydrate to fit your personal needs. Once you get all that down be ready for one of the best supplements ever made.