Four stars since I just got a slimboost shot a few hours ago and haven't felt the full effects over a set period of days. Immediately after the shot, I felt a multivitamin taste in my mouth that last for a solid 3 hours; it's just going away. My urine is slightly yellow, but not extreme and it had the scent of a vitamin c.
Am no doctor, BUT I did major in Food Science and I know what am talking about peeps. Usually I refrain from taking multivitamins because being at a fit age (31), you can get a lot of vitamins from the foods you eat. I decided forget what I know and jump on the fad for a booster shot.
The carrier for the booster is saline (salt water) practically; despite the 1000% of multiple vitamins (water soluble vitamins) and amino acids; it really just depends on what your body particularly needs at that moment and the rest you urinate out.
I will update my review from 7 days from today to the full results. Overall the staff there was friendly. They also claimed no side effects for booster shots; but this really depends on the individual and too much of anything is bad in general, so don't stack like its steroids.