Thorne · Beta-alanine · Tablets
Is Thorne Beta Alanine-SR underdosed?
Verdict
1.6–3.2 g a dayas the label directs · studies use 3.2–6.4 g/day of beta-alanine
Effective doseTaken as the label directs (1–2 servings a day, 1.6 g each), it gives 1.6–3.2 g a day; studies use 3.2–6.4 g/day. The least the directions give (1.6 g) is below that range; the most reaches it.
One tablet gives 800 mg, so reaching the low end of what studies use (3.2 g) takes 4 tablets a day; it ranks 16th of 19 beta-alanine supplements here by dose.
4 tablets a day reach 3.2 g.
What the label says
- Beta-Alanine per serving
- 1.6 g in 2 tablets
- Servings a day
- 1–2 servings a day
- Beta-Alanine a day, as directed
- 1.6–3.2 g
- Research dose
- 3.2–6.4 g/day Evidence: Strong
Suggested use: Take 2 tablets one to two times daily or as recommended by your health-care practitioner.
More about beta-alanine: forms, timing and the studies behind the dose.
Same category, compared
All 19 beta-alanine supplements we checked, ranked by dose (commission never changes the order). Studies use 3.2–6.4 g/day of beta-alanine; servings counted to 3.2 g.
| Product | Per serving | Servings to reach it | Form |
|---|---|---|---|
| Best Naturals Beta-Alanine Pure Powder | 2 g | 1.6 | Powders |
| NOW Sports Beta-Alanine Powder | 2 g | 1.6 | Powders |
| Swolverine Beta-Alanine Powder | 5 g | 1 or less | Powders |
| NOW Sports Beta-Alanine 750 mg Capsules | 2.25 g | 1.4 | Capsules |
| NutraBio Beta-Alanine Powder | 2 g | 1.6 | Powders |
| Nutricost Beta-Alanine 3,400 mg Capsules | 3.4 g | 1 or less | Capsules |
| ALLMAX Essentials Beta-Alanine | 3.2 g | 1 or less | Powders |
| BodyTech Beta-Alanine Powder | 1.6 g | 2 | Powders |
| EVLution Nutrition Beta-Alanine Powder | 1.6 g | 2 | Powders |
| GNC Pro Performance Beta-Alanine 3200 mg | 1.6 g | 2 | Tablets |
| Gorilla Mind Gorilla Mode Beta-Alanine | 3.2 g | 1 or less | Powders |
| Klean Athlete Klean SR Beta-Alanine | 1.6 g | 2 | Tablets |
| Optimum Nutrition Beta-Alanine Powder | 1.6 g | 2 | Powders |
| ProLab Beta Alanine Extreme | 800 mg | 4 | Capsules |
| BulkSupplements Beta Alanine Powder | 3 g | 1.1 | Powders |
| Thorne Beta Alanine-SR (this product) | 1.6 g | 2 | Tablets |
| BulkSupplements Beta Alanine Capsules 3000 mg | 3 g | 1.1 | Capsules |
| Nutricost Beta-Alanine Powder | 3 g | 1.1 | Powders |
| MRM Nutrition Beta-Alanine | 1.6 g | 2 | Powders |
Where the reference doses come from
- Beta-Alanine, 3.2–6.4 g/day: Harris et al., 2006; Hobson et al., 2012; Trexler et al., 2015.
- Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 291773, including its servings a day.
For a supplement taken every day we judge the most the label's directions give in a day, and show the least. Read the full methodology or the corrections log.