Advanced Testosterone Support by Thorne

This fits men with low-normal energy, training plateaus, or reduced drive whose Total Testosterone or Free Testosterone is on the lower side. It’s useful if stress and poor sleep are high, if your Zinc is low (common in vegans or heavy sweaters), or if Estradiol, sensitive runs higher with weight gain. Track with Total and Free Testosterone, SHBG (the protein that binds testosterone), LH (the pituitary signal to the testes), and morning Cortisol.

Zinc bisglycinate is a well-absorbed form; repleting low zinc can normalize testosterone production. Shilajit (standardized extract) improved Total Testosterone roughly 15–20% in small 90-day trials, likely by supporting mitochondrial energy in the testes. Ashwagandha can lower cortisol (the stress hormone that blunts testosterone) and has shown 10–15% testosterone bumps in stressed men. Luteolin phytosome improves luteolin absorption and may inhibit aromatase, the enzyme that converts testosterone into estradiol, while acting as an antioxidant.

Take 2 capsules daily with food; morning works for most, but evening is fine if ashwagandha feels calming. Separate from quinolone or tetracycline antibiotics by 2–4 hours because zinc blocks their absorption. Expect changes within 4 to 12 weeks. Recheck Total and Free Testosterone, SHBG, Estradiol, sensitive, and morning Cortisol after 8–12 weeks. Results are stronger with resistance training, 7–8 hours of sleep, weight loss if needed, and limiting alcohol.

Skip if you have prostate cancer, markedly elevated PSA, or are planning pregnancy without clinician input. Avoid in pregnancy or breastfeeding. Use caution with thyroid disease because ashwagandha can boost thyroid activity in rare cases. Sedatives can add to ashwagandha’s calming effect. Long-term high zinc can lower copper, though 15 mg/day is moderate. Allergic to sunflower? The luteolin is in a sunflower-derived phytosome. On prescription testosterone? This is adjunct, not a replacement.