💊 Beta-Alanine

performance Evidence: strong 200+ studies

Increases intramuscular carnosine levels, buffering acid (H+) during high-intensity exercise. Delays neuromuscular fatigue.

How It Works

Beta-alanine + histidine → carnosine (via carnosine synthase). Carnosine buffers H+ ions produced during glycolysis. Also acts as antioxidant and anti-glycation agent. Increases muscle carnosine by 40-80% over 4-10 weeks.

Dosage & Timing

Dosage Guide
Daily Dose2-5 g

TimingDaily (split into 0.8-1.6g doses to avoid paresthesia). Timing irrelevant — saturation effect.

BioavailabilityAbsorption: near 100%. Competition with taurine for transporter — take separately if supplementing both.

Optimal Timing

Take with food. Consistency matters more than timing for most supplements.

Cycling & Duration

No cycling needed. Carnosine levels remain elevated for 6-10 weeks after stopping. Continuous daily use is standard.

Best Forms (Ranked)

Beta-Alanine (standard) — ★★★★☆

Effective but causes paresthesia in single large doses.

Sustained-Release Beta-Alanine — ★★★★★

Reduced paresthesia. Better compliance. Slightly more expensive.

Evidence-Based Benefits

Side Effects & Safety

✅ Good For

  • Sprint/power athletes
  • Combat sports
  • Rowing/swimming (1-4 min events)
  • HIIT/CrossFit

⚠️ Skip If

  • Endurance-only athletes (>10 min events — less benefit)
  • Those who cannot tolerate paresthesia

Stacks Well With

Creatine (synergistic — different mechanisms) Sodium bicarbonate Citrulline malate

Recommended Products

Affiliate links — we may earn commission.

NOW Sports Beta-Alanine

★★★★★ 4.6/5
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Carnosyn Beta-Alanine (patented form)

★★★★★ 4.5/5
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