Doctor's Best Alpha-Lipoic Acid (ALA) 600mg delivers a potent dose of one of the most versatile antioxidants in human biochemistry. Unlike most antioxidants, ALA is both fat-soluble and water-soluble — allowing it to work in virtually every cell and tissue in the body. ALA also has the unique ability to regenerate other antioxidants including vitamins C and E and glutathione, effectively amplifying the body's entire antioxidant network.*

• 600mg high-potency alpha-lipoic acid per capsule
• Both fat- and water-soluble — works throughout the entire body*
• Regenerates vitamins C, E, and glutathione*
• Supports healthy blood sugar metabolism and insulin sensitivity*
• Supports nerve health and mitochondrial energy production*
• Non-GMO | Gluten Free | Vegan | 60 veggie capsules

Suggested Use: As a dietary supplement, take 1 capsule daily with a meal.

Frequently Asked Questions

What makes Alpha-Lipoic Acid unique among antioxidants?

Most antioxidants work in either fat-soluble environments (like cell membranes) or water-soluble environments (like blood and cytoplasm). ALA is one of the very few antioxidants that works effectively in both, making it uniquely capable of protecting tissues throughout the body. It also regenerates spent antioxidants like vitamins C and E and glutathione, effectively acting as an antioxidant recycler.*

Does Alpha-Lipoic Acid support blood sugar levels?

Yes. ALA has been shown in clinical research to support healthy glucose uptake by cells and healthy insulin sensitivity. It activates glucose transporter proteins that help move glucose from the bloodstream into cells for energy use. This makes ALA particularly relevant for people looking to support metabolic health alongside antioxidant protection.*

Can I take ALA with Acetyl-L-Carnitine?

Yes — ALA and ALCAR are a well-studied combination that work synergistically in mitochondrial energy metabolism. Many longevity researchers and clinicians recommend this pairing for cognitive support, metabolic health, and healthy ageing. Doctor's Best also offers a combined Benfotiamine + ALA formula for those seeking targeted nerve and metabolic support.*

Is 600mg of ALA safe to take daily?

600mg is a clinically relevant dose that has been used in research on glucose metabolism and nerve health. It is generally considered safe for healthy adults at this dose. However, ALA may lower blood sugar — those on diabetes medications should monitor closely and consult their healthcare professional before use.