Last checked October 2026. Last checked October 2026. Formulas, packages and refund terms were taken from each seller’s official page and supplement facts panel on that date and can change without notice.
Five formulas. Two completely different theories.
You did not land here by accident. Something changed, you noticed, and now you are reading ingredient lists at an hour you would rather be asleep.
Here is the part no sales page tells you: these five products do not agree with each other about what is actually wrong. They are not five versions of the same idea. They are two different bets, and the one you want depends on which bet fits you.
The hormone bet
Horsewood and Vigortrix build around longjack, maca, zinc and ashwagandha. The argument: output drops because the signal upstream has faded, so support the signal.
The circulation bet
Boostaro, Red Boost and Nitric Boost build around L-citrulline, pine bark and beet. The argument: the signal is fine, the plumbing is the bottleneck.
What we did
We read all five supplement facts panels, not the sales pages, and compared what is actually in the capsule against what the label says is in it.
Four things turned up that the marketing does not mention:
The daily routine is not the same. Two are a single capsule. One is two capsules. Two are powders you measure into a glass every morning, which is a very different commitment at month four.
The total amount of active material ranges from 450 mg to 3,450 mg per serving, a difference of more than seven times, at almost the same price.
One guarantee runs 180 days. The other four run 60.
Four of the five land on exactly $294 for six and $207 for three. Price tells you nothing here. The label does.
Before you compare anything else
Decide which bet you are making. A circulation formula and a hormone formula are not competing versions of the same product, and buying the wrong one is the most common way people conclude that "none of this works".
Four of the five charge exactly $294 for six units and $207 for three. When the price is identical, the only rows that decide anything are the routine you can keep up, the amount you actually get, and what the refund really covers.
Horsewood is our top pick for 2026 One capsule a day, 200 mg of longjack, and a refund that lets you keep the bottles.
How the five were compared.
Four criteria, weighted. We publish the weights because a score you cannot see the inside of is not worth much.
Mechanism & delivery, 40%
Whether the formula is built for the job it claims, and whether a man can realistically keep taking it. A capsule and a measured powder are not the same commitment.
Formula & transparency, 25%
How much of the panel carries a number, and whether the extract strengths are stated. A named ingredient with no amount cannot be checked against any study.
Evidence & claims, 25%
How much human research exists on these specific compounds, and whether the seller stays inside what that research supports.
Purchase terms carry the last 10%: price per unit, shipping, and what the refund actually requires you to send back.
What we did not do
We did not test these products and no laboratory analysis was performed. This is a label-and-evidence review of published information. No published clinical trial exists on any of the five finished formulas.
A one-capsule formula built on the hormone side of the argument, with the largest named longjack dose in this comparison and the most forgiving refund of the five.
9.21
A
Overall grade
Best overall. One capsule a day, 200 mg of longjack, and a refund that lets you keep the bottles.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Horsewood makes the hormone bet, and it makes it with the biggest number on the page.
Longjack at 200 mg is the largest named dose of eurycoma in this comparison. Red Boost publishes 100 mg of a 100:1 extract, Vigortrix 50 mg of a 10:1, and the other two do not contain it at all. Around it sit maca at 125 mg, L-arginine HCl at 125 mg, a ginseng and eleuthero pairing at 63 mg, and zinc at 25 mg, which the label states as 228% of the daily value.
The rest of the formula, 373 mg, is a proprietary blend of thirteen botanicals: pumpkin seed, sarsaparilla, muira puama, oat straw, boron, cayenne, catuaba, licorice, tribulus, orchic, oyster, astragalus and nettle. You get the list and the combined weight, not the individual numbers.
What sells it day to day is simpler than any of that. It is one capsule. Two of the five products here are powders you measure into a glass every morning, and the honest question for a supplement you are meant to take for three months is not which formula is cleverest. It is which one you will still be taking in week ten.
Format: capsules, 30 per bottle, 30 servings
Serving: 1 capsule daily with 8 oz of water, 20 to 30 minutes before a meal
Proprietary blend: 373 mg across thirteen botanicals
Total actives per serving: 1,095 mg
Contains shellfish, from the oyster extract in the blend
Distributed by: Horsewood, Ogden, UT. Made in the USA with globally sourced ingredients
Packages: 2 bottles $158 · 3 bottles $207 · 6 bottles $294 ($49 each, free US shipping, 3 digital bonuses)
Guarantee: 60 days, and you keep the bottles
Pros
200 mg of longjack, the largest named dose of eurycoma on this page
One capsule a day, the simplest routine of the five, with no powder to measure
The best refund terms here. Sixty days, and the company does not ask for the bottles back at all
Six ingredients carry an individual milligram amount, including the three that do the work
Zinc at a meaningful amount rather than a token sprinkle
A named distributor with a city and a working phone number
Points to consider
373 mg sits in a proprietary blend of thirteen botanicals, so a third of the formula is a list without numbers
Contains shellfish. If you react to oyster or shellfish, this one is out
Zinc at 228% of the daily value is fine short term, but worth knowing if you already take a multivitamin
No published trial exists on the finished formula
What the published testimonials repeat most:
A gradual build over the first three to four weeks rather than a same-day effect, which is what you would expect from a botanical formula with no stimulant
Energy and drive mentioned more often than any single physical claim
The single capsule brought up repeatedly as the reason people stayed on it
Source: testimonials published by the manufacturer on its own site. Company-hosted feedback, not independent verification. We looked for third-party aggregation and found none for any product in this comparison.
If you are making the hormone bet, this is the one to make it with. It carries the biggest longjack dose on the page, it asks for one capsule a day, and if it does not work for you the company refunds you without asking for the bottles back. The thirteen-ingredient blend is the honest weakness, and the shellfish warning is worth a second look before you order.
02Last checked October 2026
Men’s health · capsules
Boostaro
The circulation bet executed with the most research-aligned pairing in this comparison, and the only formula here that treats vitamin K2 and magnesium as part of the job.
9.0
A
Overall grade
Best on mechanism. L-citrulline with pine bark at 95% proanthocyanidins is the most targeted pairing on this page.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Boostaro does not argue about hormones at all. It argues about blood vessels, and it picks the two compounds with the most literature behind that argument.
L-citrulline is the amino acid the body converts to arginine and then to nitric oxide, and it is better absorbed than arginine taken directly. Pine bark extract standardised to 95% proanthocyanidins is the other half. The pairing of citrulline with a standardised pine bark extract is the combination in this category with the most human research pointing at it, and Boostaro is the only product here that runs both.
Three components carry exact amounts: vitamin C at 500 mg, vitamin K2 as MK-7 at 100 mcg, and magnesium at 80 mg. The K2 is an unusual inclusion and a deliberate one, because K2 and vascular calcium handling are related, and no other product here bothers with it.
The remaining 645 mg holds L-citrulline, L-lysine, the pine bark extract and nattokinase as a combined figure.
It is two capsules a day rather than one, and the bottle holds sixty, so a bottle is still one month.
Format: capsules, 60 per bottle, 30 servings
Serving: 2 capsules daily
Stimulant: none
Named with amounts: vitamin C 500 mg (556% DV) · vitamin K2 as MK-7 100 mcg · magnesium 80 mg
Proprietary blend: 645 mg of L-citrulline, L-lysine, pine bark extract at 95% proanthocyanidins, and nattokinase
The most research-aligned pairing in this comparison. Citrulline with a standardised pine bark extract is the combination this category has actually studied
Pine bark standardised to 95% proanthocyanidins, so the extract strength is stated rather than left vague
Vitamin K2 as MK-7 at 100 mcg, which no other product here includes
Vitamin C at 500 mg, a real amount rather than a label decoration
The only one you can try for $69 with a single bottle. Everyone else makes you buy two to start
Cheapest three-pack of the five at $177, with free shipping
Points to consider
645 mg sits in a proprietary blend, so the individual citrulline and pine bark amounts are not published
Two capsules a day rather than one
The capsule shell is gelatin, so it is not a vegetarian product
No published trial exists on the finished formula
What the published testimonials repeat most:
A build over the first month rather than an immediate effect
Energy and circulation mentioned alongside the primary claim
The two-capsule routine described as easy to pair with a morning habit
Source: testimonials published by the manufacturer on its own site. Company-hosted feedback, not independent verification. We looked for third-party aggregation and found none for any product in this comparison.
If you think the problem is plumbing rather than hormones, this is the best-aimed formula on the page. Citrulline with standardised pine bark is the pairing the research actually points at, and the K2 and magnesium show someone thought about the whole vascular picture rather than just the headline. The trade-off is that the four compounds doing the work share one combined number instead of four.
03Last checked October 2026
Men’s health · powder
Red Boost
The largest serving on this page by a wide margin, with seven of eight components carrying an individual amount and a guarantee three times longer than anyone else offers.
8.8
B+
Overall grade
Most material per serving. 3,450 mg a day and 180 days to change your mind, against 60 for everyone else.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Red Boost is the circulation bet taken to its maximum. 3,450 mg per serving, which is nearly three times Boostaro and more than seven times Vigortrix.
And most of it is quantified. Horny goat weed extract at 500 mg, L-citrulline DL-malate at 500 mg, maca root at 300 mg, stinging nettle root at 150 mg, tongkat ali at 100 mg of a 100:1 extract, a nine-strain probiotic at 100 mg, and vitamin C at 300 mg. Seven numbers you can look up one by one.
There is a 1,500 mg proprietary blend, and it is worth knowing exactly what sits inside it: beet root powder, cherry, lemon juice, acerola and blackberry. Fruit and vegetable powders. The blend hides the part that matters least, which is the opposite of how these things usually work.
The 500 mg of horny goat weed is the largest single botanical dose anywhere in this comparison. The catch is the format: this is a powder, one scoop of 4.13 g mixed into a glass every day, and that is a different daily commitment from swallowing a capsule.
Format: powder, 30 scoops per jar
Serving: 1 scoop, approximately 4.13 g, once daily
Proprietary blend: 1,500 mg of fruit and vegetable powders (beet, cherry, lemon, acerola, blackberry)
Total per serving: 3,450 mg
Flavoured with natural flavours, stevia and cinnamon
Packages: 1 jar $69 · 3 jars $177 ($59 each) · 6 jars $234 ($39 each, free US shipping)
Guarantee: 180 days
Pros
3,450 mg per serving, by far the largest on this page
Seven of eight components carry an individual amount, including every one that matters
A 180-day guarantee against 60 days from all four competitors
$39 per jar on the six-pack, the cheapest unit price here, and the only package that breaks the $294 pattern
500 mg of horny goat weed, the biggest single botanical dose in the comparison
The proprietary blend holds only fruit powders, not the active compounds
Points to consider
It is a powder. One scoop measured into a glass every morning is a real commitment compared with a capsule
It has a taste. Flavoured with stevia and cinnamon, which some people like and some do not
Return shipping terms are not stated on the page
No published trial exists on the finished formula
What the published testimonials repeat most:
The taste mentioned often, in both directions
A build over several weeks rather than an immediate effect
The long guarantee brought up as the reason people were willing to try it
Source: testimonials published by the manufacturer on its own site. Company-hosted feedback, not independent verification.
On paper this is the strongest formula here: the most material, the most numbers, the cheapest unit price and a guarantee three times longer than anyone else. It sits third rather than first for one reason, and it is the one nobody writes about. A powder you have to measure every single morning is abandoned far more often than a capsule you swallow with coffee, and a formula you stopped taking in week three does nothing at all.
04Last checked October 2026
Men’s health · capsules
Vigortrix
The shortest label in this comparison and the only one with no proprietary blend at all: five ingredients, five published amounts, three with the extract ratio stated.
8.5
B+
Overall grade
Shortest label. Five ingredients, five amounts, and not a single milligram hidden in a blend.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Vigortrix is the strange one in this group, and strange in a way worth understanding before you dismiss it.
Its sales page does not name a single ingredient. Not one. Its label publishes every amount. Turmeric root powder 150 mg, beet root powder 150 mg, nettle root extract at 4:1 50 mg, ashwagandha root extract at 20:1 50 mg, tongkat ali root extract at 10:1 50 mg. Five ingredients, five numbers, zero proprietary blend, and three of them carry the extract ratio as well, which almost nobody in this category bothers to print.
It is the only product on this page where you can check every single component against its own research without guessing.
The honest counterweight is the size. 450 mg total is the smallest serving here by a wide margin, and 300 mg of that is turmeric and beet. The part aimed squarely at the category, the nettle, ashwagandha and tongkat, comes to 150 mg between the three. The ratios help, a 20:1 ashwagandha at 50 mg is not the same as 50 mg of raw root, but this is a conservative formula and it does not pretend otherwise.
The only formula here with no proprietary blend. Every milligram is accounted for
Extract ratios printed for three of the five, which is rarer than it should be
One capsule a day, the same simple routine as our top pick
Ashwagandha at a 20:1 concentration, so 50 mg carries more than the number suggests
Turmeric and beet are well tolerated and unlikely to interact with much
Points to consider
450 mg total, the smallest serving on this page by a wide margin
Turmeric and beet are 300 of those 450 mg, and neither is a category-specific ingredient
The refund covers unused product only. Three of the four others accept empty containers, and this one charges the same $49 per bottle
The ordering page shows conflicting prices for the single bottle
No published trial exists on the finished formula
Published feedback follows the same pattern as the rest of the category: company-hosted, positive, with no independent aggregation available for any product in this comparison.
Source: testimonials published by the manufacturer on its own site. Company-hosted feedback, not independent verification.
If what bothers you about this category is not knowing what you are swallowing, this label answers that completely and no other label here does. What you are buying is a small, conservative, fully disclosed formula. That is a real thing to want. Just go in knowing the dose is modest and that the refund is the least generous of the five.
05Last checked October 2026
Men’s health · powder
Nitric Boost
The broadest circulation formula of the five on paper, with eight ingredients built around beet root and two forms of arginine, taken as a daily powder.
8.1
B+
Overall grade
Best for the beet route. Eight ingredients aimed at nitric oxide, in the one format that mixes into a glass.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Nitric Boost Ultra is the most literal reading of the circulation argument on this page. The name is the mechanism.
Beet root powder leads it, for the nitrates that convert to nitric oxide. Behind it sit L-arginine and L-citrulline DL-malate, the two amino acids on the same pathway, plus niacin, which is a vasodilator in its own right. Horny goat weed, dong quai, ginkgo biloba and D-aspartic acid complete it.
Eight ingredients is the second-widest list here, and the selection is coherent: almost every one of them has a blood-flow rationale rather than being filler.
What the page does not publish is how much of any of them you get. There is no supplement facts panel anywhere on the official site, and the page introduces its ingredient section with the words "some of the ingredients". For a formula whose whole argument is dose-dependent chemistry, that is the gap, and it is the reason this one sits fifth rather than higher.
Like Red Boost it is a powder, one scoop a day, thirty servings to a jar.
Eight ingredients with a coherent blood-flow rationale, not a scattered list
Both L-arginine and L-citrulline, which work on the same pathway from different ends
Beet root as the lead, the most direct dietary nitrate source there is
Vegetarian, soy-free and dairy-free, which the capsule products here are not
Empty jars accepted on refund, and free shipping on the three and six-jar packages
Points to consider
No supplement facts panel is published anywhere, so not one amount can be checked against any study
The page itself offers only "some of the ingredients"
It is a powder, with the same daily-measuring commitment as Red Boost
The two-jar package is the only one in this entire comparison that still charges shipping
No published trial exists on the finished formula
Published feedback is company-hosted and positive, with no independent aggregation available for this or any other product in the comparison.
Source: testimonials published by the manufacturer on its own site. Company-hosted feedback, not independent verification.
The thinking behind this formula is sound and the ingredient selection is the most on-message of the five. What you cannot do is verify any of it. If beet and arginine are the route you want and you are comfortable buying on the strength of the list rather than the numbers, it is a reasonable choice with a straightforward refund. If you want to check a dose against a study first, three other products here let you and this one does not.
Still deciding between the two bets? Horsewood is our top pick for the hormone route, and the only one that lets you keep the bottles.
Why Horsewood is our top pick.
Red Boost has more material in it. Boostaro has the better-aimed pairing. Vigortrix has the cleaner label. Horsewood still takes first place, and the reason is not a single heroic number.
It wins the thing people actually fail at
Longjack at 200 mg is the largest named dose of eurycoma on this page, and it is the ingredient most associated with the hormone route. But the real argument is duller than that: it is one capsule. Two of the five are powders you measure into a glass before work every morning. A formula you quit in week three delivers nothing, whatever is printed on the jar.
The refund is the most honest one here
Sixty days, and the company does not ask for the bottles back. Vigortrix refunds unused product only, at the same $49 a bottle. Red Boost runs 180 days but says nothing about who pays return shipping. Horsewood simply refunds you.
And the trade-off, stated plainly
373 mg of the 1,095 sits in a proprietary blend of thirteen botanicals, and the oyster extract in it means the label carries a shellfish warning. If you want every number printed, Vigortrix is the page for you. If you want the most material in the scoop, it is Red Boost. Horsewood is the one we would hand to someone who wants a real dose of the main ingredient, a routine they will keep, and a refund that does not fight back.
Horsewood, 6 bottles at $49 each Free US shipping, three digital bonuses, 60-day guarantee and you keep the bottles.
What buyers actually report.
No product in this comparison has independent review aggregation. Everything published is hosted by the seller, which means it is marketing, not evidence. We read all of it anyway, because the patterns that repeat across five different companies are worth something even when each one individually is not.
Nobody describes a first-day effect
Across all five, the timeline people describe starts somewhere in week two to week four. None of these formulas contains a stimulant, and none of them is a drug. If you are expecting something to happen on Tuesday because you took it on Monday, every one of these will disappoint you.
Format decides who quits
The capsule products get described as easy to keep up. The powders get described by their taste, in both directions. That difference does not appear on any sales page and it is the single biggest predictor of whether a bottle three ever gets ordered.
The guarantee is doing more work than the formula
In this category people buy on the refund as much as on the ingredients, which is rational when no finished formula has a published trial. That is why the three rows worth your attention are how long the guarantee runs, whether empty containers count, and who pays to ship them back.
How to read any testimonial in this category
A company-hosted testimonial tells you what the company chose to publish. It is not a lie and it is not evidence. Treat the pattern across many of them as a weak signal and the individual story as none at all.
How to choose between them.
Step one: pick your bet, not your product
Hormone route: Horsewood or Vigortrix. Longjack, maca, zinc, ashwagandha. The argument is that the upstream signal faded. Circulation route: Boostaro, Red Boost or Nitric Boost. Citrulline, pine bark, beet, arginine. The argument is that the signal is fine and the plumbing is the bottleneck.
Buying across the two without deciding is the most common way men end up concluding that none of it works.
Step two: be honest about the format
Three capsules, two powders. A powder is a decision you make every single morning. If you know yourself well enough to know that will not last, the capsule products are not a compromise, they are the correct choice.
Step three: read the refund, not the discount
All five discount heavily and four of them land on the same $294. The refunds are where they actually differ: Horsewood lets you keep the bottles. Red Boost gives you 180 days. Vigortrix refunds unused product only. That last one matters, because a supplement you have to take for a month before judging is a supplement you cannot return unused.
Step four: give it the full window
Every one of these is a slow formula. Judging it in the first fortnight tells you nothing, and the guarantee exists precisely so you can take it long enough to find out.
Hormone route, simplest routine, best refund That combination is Horsewood, and it is why it takes first place here.
The final verdict.
Horsewood takes first place for the combination rather than for any single number: the biggest named longjack dose here, one capsule a day, and a refund that does not ask for the bottles back.
Boostaro is second and is the one we would pick on formula alone. Citrulline with pine bark standardised to 95% proanthocyanidins is the most research-aligned pairing in this comparison, and it is the only one you can try for $69 without committing to two bottles.
Red Boost is third with the most material, the most published numbers and a 180-day guarantee, held back only by being a powder you measure every morning.
Vigortrix is fourth, with the only label here that hides nothing, and the smallest dose to go with it.
Nitric Boost is fifth. The thinking is right and the ingredient list is sound, but no amounts are published anywhere, so none of it can be checked.
Final verdict
Our pick for 2026
One capsule a day, 200 mg of longjack, 60-day guarantee and you keep the bottles. If you are making the hormone bet, this is the one we would make it with.
Frequently asked questions.
Frequently asked questions.
How long before any of these should be judged?
Give any of them the full guarantee window, and at minimum four weeks. None contains a stimulant and none is a drug, so nothing here is designed to be felt on day one. The published feedback across all five describes a build starting somewhere in week two to four.
Capsules or powder, does it matter?
For the chemistry, no. For whether you are still taking it in month three, enormously. Horsewood and Vigortrix are one capsule a day, Boostaro is two, and Red Boost and Nitric Boost are powders you measure into a glass. Pick the one you will actually keep up.
Why are four of them the same price?
Because they run the same funnel template: $294 for six units, $207 for three. Red Boost is the only one that breaks it, at $234 for six. When the price is identical across a category, price carries no information and the label has to do the deciding.
Which one publishes the most information?
Vigortrix. It is the only one of the five with no proprietary blend at all: five ingredients, five amounts, three with the extract ratio stated. Red Boost publishes seven of eight. Nitric Boost publishes none.
What does "proprietary blend" actually mean for me?
That you get the ingredient names and one combined weight instead of a number beside each one. It is legal and common, and it means you cannot check any single ingredient against the research behind it. Horsewood puts 373 mg in a blend, Boostaro 645 mg, Red Boost 1,500 mg of fruit powders, Vigortrix none.
Can I take more than one of these at once?
We would not. Several share ingredients, two contain zinc or arginine at meaningful amounts, and stacking them means you no longer know what is doing what, or what is doing too much. Run one at a time for the full window.
Who should speak to a doctor first?
Anyone taking blood pressure medication, blood thinners, nitrates or diabetes medication, and anyone with a heart condition. Several of these formulas are built specifically to affect blood flow, which is exactly why that conversation matters. Bring the label.
Where should these be bought?
The official site for each. None of the five is sold through a verified retail channel, and marketplace listings using these brand names frequently turn out to be a different formula in similar packaging.
Sources & verification record.
Every figure on this page was taken from the product’s own supplement facts panel and its official ordering page, read in October 2026. Where a sales page and a label disagreed, we used the label. No third-party laboratory analysis was performed and no published clinical trial exists on any of the five finished formulas.
Horsewood supplement facts panel and official ordering page, October 2026
Boostaro supplement facts panel and official ordering page, October 2026
Red Boost supplement facts panel and official ordering page, October 2026
Vigortrix supplement facts panel and official ordering page, October 2026
Nitric Boost Ultra official ordering page, October 2026. No supplement facts panel is published on it
Panels and prices checked October 2026. Marketplace listings carrying these brand names were not used as a source: in at least one case the panel on such a listing belonged to an unrelated formula.
Formulas, packages and refund terms were accurate on the dates checked and can change without notice. Confirm current details on the official page before ordering.
