Boron
A genuine trace mineral with real hormonal research — declared here in a way that hides the number that matters.
Boron in the Horsewood Formula
Amino acid chelate — 20 mg per two-capsule serving.
In one line: Real research behind it, but the label gives chelate weight rather than elemental boron, so the meaningful figure is unknown.
A genuine trace mineral with real hormonal research behind it — declared here as chelate weight, so the elemental boron content is unknown.
What Boron Is, Before the Horsewood Framing
Boron is a trace mineral found in fruit, vegetables, nuts and legumes — prunes, raisins, avocados, almonds and chickpeas are among the richer sources. Typical dietary intake runs to a small number of milligrams a day.
It has no established Recommended Dietary Allowance, but it is not inert: boron influences the metabolism of calcium, magnesium and vitamin D, and has documented effects on bone and on steroid hormone levels.
In supplements it usually appears as a compound rather than as elemental boron — boron citrate, boron glycinate, or as here an amino acid chelate.
What the Boron Research Behind Horsewood Found
Boron has a small but genuinely interesting research literature, and it is the ingredient in this formula with the most direct hormonal evidence.
Testosterone. Several small human studies have examined boron supplementation and hormone levels. A frequently cited study reported that around 10 mg of boron a day for a week was associated with an increase in free testosterone and a decrease in oestradiol in a small group of men. Other work has looked at effects on sex hormone binding globulin.
The caveats are real. These studies are small, short and not always replicated, and the mechanism is thought to involve reduced binding rather than increased production.
Bone and vitamin D. Boron's better-established role concerns mineral metabolism, with research on calcium retention and vitamin D status.
Amounts used in the hormonal work are typically around 6–10 mg a day of elemental boron. That word is the crux of the next section.
What 20 mg of Boron Chelate Means in Horsewood
This is the most technical point on the site, and the most consequential.
The label declares 20 mg of "Boron Amino Acid Chelate". That is the weight of the whole chelate compound — the boron plus the amino acid it is bound to — not the weight of boron itself.
In chelated mineral ingredients, the mineral is generally a small percentage of the total compound weight. So the elemental boron content here is a fraction of 20 mg, and the label does not say what fraction. No estimate is made on this site, because the percentage varies by manufacturer and none is published.
Why it matters: at first glance 20 mg looks like double the ~10 mg used in the testosterone research. It is almost certainly well below it. Anyone reading 20 mg as 20 mg of boron would be reading the label wrong, and the label does not help them read it right.
Asking the seller for the elemental boron content per serving is a fair and simple question, and the answer would be one line.
Boron Safety in Horsewood
Boron is safe within established limits, and the chelate declaration cuts both ways.
- The adult tolerable upper intake level is 20 mg a day of elemental boron. Since this label gives chelate weight and the elemental content is a fraction of that, an overdose from this product alone is unlikely.
- Do not stack boron supplements without checking the elemental content of each — the same labelling ambiguity applies across the category.
- Hormone-sensitive conditions. Given the hormonal research, discuss boron supplementation with your doctor if you have any hormone-sensitive condition.
- Kidney function. Boron is cleared renally, so anyone with impaired kidney function should take advice first.
The Horsewood amounts, next to the amounts used in research
Start with what deserves credit: this label declares every ingredient individually. There is no proprietary blend hiding the numbers, which is genuinely better practice than much of this category manages, and it is what makes the comparison below possible at all.
It also makes something plain that the sales page does not: the seven actives come to 118 mg in total per daily serving.
About the extract-ratio claims. The label states that the 10 mg of tongkat ali comes from a 100:1 extract and is "equivalent to approximately 1000 mg of dry powder", and that the 8 mg of horny goat weed is equivalent to about 80 mg of dry powder. Dry-weight equivalence is a common industry convention, but it is not the same thing as matching a studied dose — the trials used specific standardised extracts at specific weights, and a claimed equivalence to raw powder does not substitute for that.
None of this makes the ingredients wrong. Saw palmetto, tongkat ali and boron all have real research behind them. It does mean that if you are buying for a specific ingredient, the amount here is well below where its evidence was generated, and buying with that understood is very different from buying without it.
How to read the research described on this Horsewood page
The studies referred to here examined individual ingredients on their own, at the amounts the researchers chose — which for saw palmetto, nettle and tongkat ali means hundreds of milligrams a day.
That research explains why an ingredient is of interest. It does not show that Horsewood reproduces those results, and no clinical trial of this finished formula has been published. Because this label discloses every amount, you can make the comparison yourself — which is exactly what the rest of this page invites you to do.
Related Horsewood Reading
The main ingredients page shows all seven actives with the label, how Horsewood works walks through the five stages, and the benefits page assesses each support claim against the evidence.
Horsewood Safety Notes
Horsewood safety and sensible precautions
The product label's caution panel is the starting point, and a few ingredient-specific points are worth adding.
- Do not exceed the recommended dose of two capsules daily.
- Anyone under 18, pregnant or nursing mothers, and anyone with a known medical condition should consult a physician before using this or any dietary supplement. This is a men's product, but the label's wording is reproduced as printed.
- Saw palmetto and PSA testing. Worth telling your doctor if you take it. Saw palmetto is widely used for prostate symptoms, and prostate symptoms in an older man are a reason for a medical assessment rather than a supplement.
- Anticoagulants. Saw palmetto has been associated with effects on bleeding in case reports. Mention it to a pharmacist if you take warfarin, aspirin or similar, and stop before surgery.
- Horny goat weed and heart medication. Icariin has been studied for PDE5 activity, the same broad pathway as some erectile-dysfunction drugs. Anyone taking nitrates or PDE5 inhibitors should raise this with a doctor rather than assume the amount here is too small to matter.
- Boron. The adult upper intake level for elemental boron is 20 mg a day. This label declares 20 mg of boron chelate, whose elemental content is a fraction of that and is not published — so an overdose is unlikely, but the figure should not be read as 20 mg of boron.
- Gelatin capsules mean this product is not suitable for vegetarians or vegans.
- Keep out of reach of children, do not use if the safety seal is damaged or missing, and store away from heat, light and humidity.
Horsewood is a dietary supplement, not a medicine, and it is not intended to diagnose, treat, cure or prevent any disease.
When to see a doctor instead of buying Horsewood
This matters more in this product category than in most, because the symptoms it is marketed around are sometimes the first sign of something treatable.
Erectile difficulties are frequently an early cardiovascular signal. The blood vessels involved are small and are often affected before larger ones, so new or worsening erectile dysfunction can precede a diagnosis of vascular disease, hypertension or diabetes by years. It is one of the more useful early warnings in men's health, and treating it as a supplement problem can mean missing it.
Persistent fatigue, loss of drive or low mood can reflect thyroid problems, sleep apnoea, depression, anaemia or genuinely low testosterone — all of which are diagnosable with a blood test and manageable with treatment.
Urinary symptoms such as a weak stream, urgency or getting up at night warrant a proper prostate assessment rather than a botanical capsule.
To be fair to the reference: its own FAQ says this too, stating plainly that the product should not be described as treating erectile dysfunction, low testosterone or cardiovascular disease. That is the right advice and it is repeated here.
More Horsewood Ingredients
Considering Horsewood?
Read the ingredients page first. Every amount in this formula is printed on the label, which is more than most products in this category manage — and once you can see the amounts, the most useful question answers itself.
From $49 per bottle · 60-day money-back guarantee · Empty bottles accepted for refund
