Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Alpha Lipoic Acid (ALA) | Astaxanthin | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 300-600mg R-ALA daily | 4-12mg daily |
| Timing | On empty stomach, 30-60 min before meals. Split doses for higher amounts. | With a fat-containing meal for absorption (fat-soluble carotenoid). |
| Cycle Duration | ongoing or cycle 12 weeks on, 4 weeks off | ongoing |
| Evidence Level | strong_human | moderate_human |
ALA is a dithiol compound that functions as a cofactor for mitochondrial alpha-keto acid dehydrogenases (pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase). Both ALA and its reduced form DHLA are potent antioxidants capable of regenerating other antioxidants including vitamin C, vitamin E, and glutathione. ALA activates AMPK, improving glucose uptake via GLUT4 translocation, and modulates NF-kB-mediated inflammatory signaling. It chelates redox-active metals (Fe2+, Cu2+).
300-600mg R-ALA daily
On empty stomach, 30-60 min before meals. Split doses for higher amounts.
ongoing or cycle 12 weeks on, 4 weeks off
Astaxanthin spans the entire cell membrane bilayer due to its unique molecular structure (polar end groups with a polyene chain), providing antioxidant protection on both the inner and outer membrane surfaces simultaneously — unlike other carotenoids. It quenches singlet oxygen 6000x more effectively than vitamin C, 800x more than CoQ10, and 550x more than vitamin E. It suppresses NF-kB and modulates Nrf2, reduces oxidative damage to mitochondrial membranes, and protects LDL from oxidation. Uniquely, it crosses the blood-retinal barrier and blood-brain barrier.
4-12mg daily
With a fat-containing meal for absorption (fat-soluble carotenoid).
ongoing
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