I've used both. The Sports Recovery is good especially if you are active. It's not as good as aminos, but it works. My only issue is it bothers my sinuses and I can't figure out why? I keep it for backup but I don't prefer because of that side effect. I'll be fine, start using it and a week later, my congestion is on 100. Otherwise, my skin is very plump when I use it.
The Neocell is good, just as good, but their derma matrix is better. It had Collagen 1&3 and I'm guessing 2 (hyalauronic acid) so it works a tad better. When I'm using it consistently, I omit stand alone HA from my facial regimen. It also has vitamin c and amla fruit extract. My skin has been soft (there is a thread about this over in the makeup forum) but it does help with hair.
When it comes to hair growth, nothing beats using aminos, but they are pointless if you do not work out. The Neocell Derma Matrix is second best. Followed by the 1&3. Sports Recovery is good but it's my least favorite. I still recommend it, because it's good, but it's my least favorite.