Quick Verdict
Ashwagandha (KSM-66)
Ayurvedic adaptogen herb, most researched for cortisol reduction, testosterone support, and stress resilience.
Evidence: strong (40+ studies)
Boron
Trace mineral that significantly impacts testosterone, vitamin D metabolism, and bone health. One of the most underrated
Evidence: moderate (20+ studies)
Side-by-Side Comparison
| Ashwagandha (KSM-66) | Boron | |
|---|---|---|
| Category | adaptogens | minerals |
| Evidence Level | strong | moderate |
| Studies | 40+ | 20+ |
| Dosage | 300-600 mg | 3-10 mg |
Stack Compatibility
Ashwagandha (KSM-66): Magnesium, L-Theanine, Rhodiola Rosea, Zinc
Boron: Vitamin D3, Magnesium, Zinc, Ashwagandha
Which Should You Choose?
Ashwagandha (KSM-66) has stronger evidence (40+ studies).