HorseWood's formula is built from seven named botanical and mineral ingredients — no proprietary blend hiding the amounts. Here's a quick-reference guide to each one, with links to a full deep-dive if you want the research behind it.
The Seven Ingredients
1. Saw Palmetto Berry Extract
A palm fruit extract traditionally used for prostate and urinary health, studied for its effect on 5-alpha reductase, the enzyme that converts testosterone into DHT. Read the full breakdown →
2. Tongkat Ali (Eurycoma longifolia)
A Southeast Asian root with some of the more researched effects in this ingredient category, particularly in men with lower baseline testosterone. Read the full breakdown →
3. Horny Goat Weed (Epimedium)
Contains icariin, a compound studied for its effect on blood flow and nitric oxide — though most of the strongest evidence so far comes from animal studies rather than large human trials. Read the full breakdown →
4. Nettle Leaf / Root Extract
Believed to influence how much testosterone stays "free" and bioavailable in the bloodstream by interacting with sex hormone binding globulin (SHBG). Read the full breakdown →
5. Wild Yam Root Extract
Contains diosgenin, a plant steroid; often marketed for hormone support, though current evidence for direct hormonal effects in the body is limited. Read the full breakdown →
6. Sarsaparilla Root Extract
A traditional tonic herb studied mainly for anti-inflammatory and antioxidant properties. Read the full breakdown →
7. Boron (Amino Acid Chelate)
A trace mineral with a small but notable pilot study linking short-term supplementation to shifts in free testosterone and estrogen. Read the full breakdown →
Important context: The research summarized above and in the linked articles is based on studies of these ingredients individually — often in small trials, and sometimes in animals rather than humans. It does not constitute a clinical study of the finished HorseWood formula. Always check the product label for exact dosing, and talk to a healthcare provider about interactions with any medication you take.
See Exact Amounts on the Official Label
Full ingredient disclosure and current pricing on the official HorseWood site.
View Full Label