Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Coenzyme Q10 (Ubiquinol) | DHEA (Dehydroepiandrosterone) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 100-200mg ubiquinol daily | 25-50mg daily (men); 10-25mg daily (women) |
| Timing | With meals containing fat. Morning or midday preferred (may be mildly energizing). | Morning (mimics natural circadian peak). With food. |
| Cycle Duration | ongoing | Ongoing under supervision with regular blood monitoring (DHEA-S, testosterone, estradiol, PSA in men) |
| Evidence Level | strong_human | moderate_human |
CoQ10 functions as an essential electron carrier in the mitochondrial electron transport chain (Complex I to III and Complex II to III), directly supporting oxidative phosphorylation and ATP synthesis. In its reduced form (ubiquinol), it serves as a potent lipid-soluble antioxidant, protecting mitochondrial membranes and LDL particles from peroxidation. It also modulates the mitochondrial permeability transition pore (mPTP) and supports endothelial NO synthase coupling.
100-200mg ubiquinol daily
With meals containing fat. Morning or midday preferred (may be mildly energizing).
ongoing
DHEA is the most abundant circulating steroid hormone, produced primarily by the adrenal zona reticularis. It serves as a precursor for both androgens (testosterone, DHT via 3beta-HSD and 17beta-HSD) and estrogens (estradiol, estrone via aromatase). DHEA-S (sulfated form) acts as a neurosteroid, positively modulating NMDA receptors and antagonizing GABA-A receptors (cognitive enhancement/alertness). It also modulates immune function (enhances Th1 immunity, IL-2 production), supports bone mineral density via estrogenic metabolites, enhances insulin sensitivity via PPAR-alpha activation, and opposes cortisol's catabolic effects (DHEA:cortisol ratio is a stress/aging biomarker).
25-50mg daily (men); 10-25mg daily (women)
Morning (mimics natural circadian peak). With food.
Ongoing under supervision with regular blood monitoring (DHEA-S, testosterone, estradiol, PSA in men)
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