I take Super Collagen+C by Neocell, not for fitness purposes primarily. It's 6g a day. I notice softer skin and my nails tend to grow faster. Can't really tell if it affects my hair since that has always grown fast.
3 out of 5 rating for Universal Nutrition Animal Pak
Probably too many vitamins for an intermediate gym user like myself. Turned my urine very yellow which lets me know lots is going through me. I kind of wish the instructions were more than take these all at once, seeing as there would likely...
3 out of 5 rating for MUTANT Whey 5lbs
This stuff got the job done as a filler, but it is full of sugar and really tastes like corn syrup after a few shakes. Probably not the highest quality calories to be consuming.
2 out of 5 rating for Universal Nutrition Animal Stak
To be honest, when I used this I got a burst of energy for the first few days and then immediately got moody and lethargic and experienced lowered sex drive. Immediately stopped. Didn't work too well with me at the time.
4 out of 5 rating for Universal Nutrition Animal M-Stak
This was one of the first "anabolic" supplements I tried. I definitely noticed a change in my body quite quickly with a calorie surplus, especially in biceps and back. Subsequent uses haven't been as effective but first time was great.