Carnosine-precursor amino acid · Fact sheet
Beta-alanine
Also known as β-Alanine
Beta-alanine supplies a precursor for muscle carnosine and is studied for high-intensity exercise. Performance effects vary by task, and a resistance-training study found no added muscle-size or strength benefit.
What is Beta-alanine?
It is a non-protein amino acid, not a growth-hormone peptide or anabolic drug.
Carnosine buffering is a mechanism; it does not predict improvement on every exercise test.
Benefits & claims
Interest in Beta-alanine spans recovery. Study findings apply to the named formulation and population.
What the evidence supports
- Selected fatigue-limited tasks may respond differently from maximum strength or muscle thickness.
- Nineteen trained men gained strength with training, but beta-alanine did not improve those gains versus placebo.
- Tingling is an adverse sensory effect, not a marker that a workout is more effective.
Research areas
- Formulation-specific human outcomes
- Mechanistic research
Dosage & frequency
Human study contextThis is an exposure from a named human study, not a generally established treatment or enhancement regimen.
Older-adult beta-alanine fatigue study
26 men and women aged 55–92 years
- Amount
- 800 mg per administration
- Frequency
- Three times daily for 90 days
- Route studied or labeled
- Oral
This study used a specific product and cycling fatigue-threshold measure. It does not establish fall prevention, greater hypertrophy or a universal exercise schedule.
How to read these amounts
An approved regimen belongs to a specific product, indication, and population. A study regimen describes what researchers tested; it does not establish a prescription or a safe self-use protocol. Products, routes, and formulations are not interchangeable. A prescriber uses the full label and individual clinical circumstances.
Personal accounts may describe amounts, schedules and outcomes beyond clinical research. They do not establish a regimen. Read the reported experiences
Formulations, interactions & practical context
- Identity and pharmacology
- It is a non-protein amino acid, not a growth-hormone peptide or anabolic drug.
Formulation differences
- Carnosine buffering is a mechanism; it does not predict improvement on every exercise test.
Interactions & precautions
- The reviewed sources do not establish a comprehensive human interaction profile for this exact substance or combination.
What is still unresolved
- Reproducibility in larger independent trials
- Long-term outcomes and adverse effects
- Equivalence of different preparations and interaction profiles
Side effects & risks
- Paresthesia, meaning tingling or prickling, can occur and depends on exposure.
- Long-term high-intake safety and interactions with multi-ingredient pre-workout products are less well established than short single-ingredient studies.
This is a summary of the cited evidence, not a complete product label. A lack of human safety data does not establish safety.
Clinical research
Early human evidenceA small older-adult study improved a cycling fatigue-threshold measure. A separate eight-week trained-men study found no additional resistance-training adaptation.
Studies
26 older adults; 90-day cycling fatigue-threshold study.
19 trained men; no added strength or muscle-thickness benefit over eight weeks.
Personal experiences
Reports describe what someone noticed. They cannot establish cause, typical results, or how often a side effect happens. Amounts and schedules describe the individual account, not an effective or safe dose. Product identity and strength may be unverified, and missing details are left explicit.
No attributable personal accounts were found in the sources reviewed.
Approval status
No FDA-approved Beta-alanine drug indication is established for the supplement uses discussed here. Supplement availability is not FDA approval of efficacy or safety.
No FDA-approved product for this entry
Approval covers the labeled product, use and population. A trial phase does not establish success; a stopped program is not ongoing research.
- The effect of beta-alanine supplementation on neuromuscular fatigue in elderly (55-92 Years): a double-blind randomized study.
- Does beta-alanine supplementation enhance adaptations to resistance training? A randomized, placebo-controlled, double-blind study.
- NIH ODS: exercise and athletic-performance supplements
Open questions
- Reproducibility in larger independent trials
- Long-term outcomes and adverse effects
- Equivalence of different preparations and interaction profiles
Summary
Tingling is an adverse sensory effect, not a marker that a workout is more effective.
Sources
Medical evidence and regulatory sources are listed here. Personal reports are linked separately in the experiences section.
- pubmedThe effect of beta-alanine supplementation on neuromuscular fatigue in elderly (55-92 Years): a double-blind randomized study.
26 older adults; 90-day cycling fatigue-threshold study.
- pubmedDoes beta-alanine supplementation enhance adaptations to resistance training? A randomized, placebo-controlled, double-blind study.
19 trained men; no added strength or muscle-thickness benefit over eight weeks.
- nihNIH ODS: exercise and athletic-performance supplements
Ingredient-specific efficacy, tolerability and evidence limits for performance supplements.