Beta Alanine boosts intramuscluar Carnosine levels. This means an increase in strength and power output, increased Aerobic and Anaerobic Endurance and delays fatigue so you can train longer and harder.
And unlike creatine, it doesn't make you bloat. The most you may get from it is a slight niacin type tingling sensation that only last a 5 or 10 minutes
The Follwing are some good options for Beta Alanine