Alpha-lipoic acid
Full ranking Dose tool Products (1,041)
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Reference upper value (cited, not a UL): 600 mg
Median (Per day)100 mgP5 5 – P95 600
Products1,041
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=alpha.lipoic.acid2&lang=eng · Health Canada NNHPD monograph: not to exceed 600 mg DL-alpha-lipoic acid/day (R-ALA 300 mg)
Daily dose across products (mg/day)
Reference upper value (cited, not a UL) 600
0.25 mglog scale · n=1,0411,200 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common questions
Is there an official upper limit for Alpha-lipoic acid?
No UL has been set. We use a cited reference upper value of 600 mg per day. It comes from the linked study or assessment and is not a regulatory limit. [source]
How much Alpha-lipoic acid do products usually contain per day?
As of 2026-11-01, 1,041 products list a comparable daily dose (1,051 dose records; one product can have several). The median is 100 mg per day, and 90% of records fall between 5 and 600 mg. Figures come from labels and are not lab-tested. [source]
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | Trader Joe's | Alpha Lipoic Acid | 300 mg | 100.0 |
| 1 | Dymatize Nutrition | Alpha Lipoic Acid | 600 mg | 100.0 |
| 3 | Vitamin World | Alpha Lipoic Acid 100 mg | 100 mg | 97.8 |
| 3 | Spring Valley | Alpha Lipoic Acid 200 mg | 600 mg | 97.8 |
| 5 | Bluebonnet | Alpha Lipoic Acid 100 mg | 100 mg | 94.4 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.