Creatine Monohydrate vs Beta-Alanine

Both carry an overall Grade A, but the strength of that A differs. Creatine monohydrate is the broader pick: its Grade A covers strength, power, and lean mass — with typical gains of 5-15% in strength and power — and the ISSN's position stand calls it the most effective nutritional supplement for increasing high-intensity exercise capacity and lean body mass. It's described as the most-studied sports supplement in history, and it reaches beyond the shared muscle-performance goal into cognition (Grade B) and fatigue/recovery (Grade B). Beta-alanine's Grade A is real but narrow — it reliably helps high-intensity efforts lasting about 1-4 minutes (400-800m runs, high-rep sets, rowing intervals) and does little outside that window (minimal effect for efforts under 60 seconds or beyond about 10 minutes), which is why Layne Norton ranks it Tier 2, below his top picks. For the shared muscle/athletic-performance goal, reach for creatine first as the near-universal default; add beta-alanine specifically if your training lives in that 1-4 minute burn zone — the files note the two work through different, non-overlapping mechanisms and stack cleanly together.