First, the important part. Erection problems can be an early warning sign of heart disease, and they can also come from diabetes, low testosterone or a medication you already take. See your doctor before you buy any supplement for this, especially if the change is new. And if you take nitrates such as nitroglycerin, do not experiment with products in this category without talking to your doctor. Our guide to erection problems after 50 explains what to ask.
What is Red Boost?
Red Boost is a dietary supplement in powder form. One scoop (about 4 grams) a day goes into a drink, and each container holds 30 scoops. It is sold online through ClickBank, and the sales page is branded with an older name, Hard Wood Tonic. The seller says it works by supporting "smooth muscle" and blood flow.
Like every supplement, it has not been evaluated by the FDA for safety or effectiveness, and it is not intended to diagnose, treat, cure or prevent any disease. The seller's own footer says so. The page also says it is made in an "FDA registered facility", which is worth reading carefully: registration means the factory is on file with the agency. It does not mean the FDA approved the product.
What is on the label
Here is the part we think matters most. Sales pages describe; labels commit. This is the Supplement Facts panel the seller showed on November 4, 2026:
| Horny goat weed extract | 500 mg. The source of icariin, the ingredient the sales page leads with. |
|---|---|
| L-citrulline DL-malate 1:1 | 500 mg. Because it is a 1:1 blend with malate, that works out to roughly 250 mg of citrulline. |
| Maca root powder | 300 mg. |
| Stinging nettle root extract | 150 mg. |
| Tongkat ali extract 100:1 | 100 mg. |
| Vitamin C | 300 mg (333% of the daily value). |
| Fruit and beet blend | 1,500 mg in total: beet root, cherry, lemon juice, acerola and blackberry powders. Amounts of each are not listed. |
| 9-strain probiotic | 100 mg. The label gives no live-culture count. |
| Other ingredients | Natural flavors, stevia, cinnamon. |
Two things stood out. Fenugreek is described at length on the sales page, but it does not appear on the label shown on that same page. Maca does the reverse: it is on the label and not in the sales story. We can't tell you which is out of date, so if fenugreek is why you are interested, ask the seller before ordering. In fairness, publishing most individual amounts is better than many products in this category do.
What the research really says
No published clinical trial of the finished Red Boost formula turned up in our search. So the honest question is what is known about each ingredient, and whether the amounts match.
L-citrulline has the most encouraging small study. In a 2011 single-blind study of 24 men with mild ED, average age about 56, 50% improved one step on a hardness scale while taking citrulline, compared with 8.3% on placebo. Two details matter: the dose was 1.5 grams a day, several times what we calculate from this label, and the authors themselves said it was less effective than prescription ED pills and needed more research.
Tongkat ali was the subject of a 2015 meta-analysis that could include only 2 trials and 139 men. Overall there was no significant difference from placebo; a subgroup with lower starting scores did improve. The authors said it "may" have an effect and called for more trials.
Maca: a 2010 systematic review of four small trials found "limited evidence" and said the studies were too few and too weak for firm conclusions.
Horny goat weed (icariin) works in lab and animal studies, and icariin acts on the same enzyme as prescription ED pills in a test tube. Reviews of the literature report no solid human trials for ED, so this one rests mostly on tradition and rats. Nettle root has been studied mainly for urinary symptoms, not erections.
The sales page's stronger statements, such as a "newly discovered root cause" and that it "works for almost everyone", are the seller's claims. We could not find independent evidence for them, so we don't repeat them as fact.
Price and refund
| 1 container (30 days) | US$ 69, plus shipping |
|---|---|
| 3 containers (90 days) | US$ 177 (US$ 59 each), shipping included |
| 6 containers (180 days) | US$ 234 (US$ 39 each), shipping included |
| Billing | The seller says it is a one-time payment, with no auto-ship |
| Refund | 180 days from shipping. Email the seller first, wait for confirmation, then send back all containers, empty or full, at your own cost |
Prices are those shown on the seller's page on November 4, 2026, and can change. Ignore the much higher "regular" prices crossed out on the page; they are not a useful reference. Expect extra offers after you check out, since the seller describes an upsell funnel to affiliates, and only accept one you actually want.
Our advice: if you try it, start with one container. The refund is long, but returning bottles at your own cost eats into a small order, so keep your order email and the empties. Also compare the price with what a pharmacy charges for plain citrulline, which lets you see the dose on the bottle.
Check the current price and label
See today's packages, the Supplement Facts panel and the refund terms on the seller's page.
Go to Red Boost →180-day refund, return postage on you · Secure checkout via ClickBank
Pros and cons
What we like
- Most ingredient amounts are printed on the label.
- A powder drink, easy for men who dislike pills.
- Long 180-day refund window, one-time payment.
- Few buyers ask for their money back, by ClickBank's marketplace figures (under 4% when we checked in November 2026).
Keep in mind
- No clinical trial of the finished product.
- Citrulline dose is well under the amount used in the best-known study.
- Fenugreek is on the sales page but not on the label shown.
- You must return all containers and pay postage to get a refund.
- The sales page promises far more than the evidence supports.
Who should ask a doctor first
Talk to your doctor or pharmacist before using Red Boost if you: take nitrates (nitroglycerin and similar) or ED pills such as sildenafil or tadalafil; have heart disease or high or low blood pressure; take blood thinners, diabetes medication or blood pressure medication; have prostate cancer or use hormone therapy; have kidney or liver disease. Citrulline and icariin both act on pathways related to blood vessel relaxation, and how they combine with these medicines has not been well studied. Herbal horny goat weed products have also been linked to rare case reports of side effects such as a rapid heartbeat and severe muscle spasms. Stop and call your doctor if you notice anything unusual, and call 911 for chest pain.
A wider warning about this category: the FDA has repeatedly found undeclared prescription drugs in products sold for sexual enhancement, some labeled "all natural", and those can lower blood pressure dangerously in people on nitrates. We found no FDA notice naming Red Boost when we searched on November 4, 2026, but the FDA says it cannot test every product, so that is not a guarantee.
Frequently asked questions
How do I take it?
One scoop a day mixed into a drink, following the directions on your container.
How soon will I notice anything?
We can't tell you, and there is no trial of this formula to answer it. The citrulline study above ran for one month. If nothing has changed after a fair try, or things get worse, go back to your doctor rather than ordering more.
Can it replace ED medication?
No. It is not a treatment for ED. Prescription options have far stronger evidence, and a doctor can tell you whether they are safe for you. Never stop or change a prescription on your own.
Can I buy it in stores or on Amazon?
The seller says it is sold online through its own page, processed by ClickBank. Be careful with listings elsewhere, since the seller doesn't authorize retail resale.
How does the refund work?
Within 180 days of shipping, email the seller with "Refund Request" in the subject, wait for confirmation, send back every container at your own cost, and email the tracking number. The seller says the refund usually shows in 5 to 10 days after that.
Our verdict
Red Boost is a reasonable-looking blend with a mostly transparent label, a long refund window and a sales page that gets far ahead of the science. The ingredient with the best small study is present at a fraction of the studied dose, and nothing has been tested as a finished formula. If your doctor has ruled out anything serious, you are not on an interacting medication and you understand it's a try-and-see purchase, one container is a fair experiment. If you want the option with real evidence behind it, that conversation starts in a doctor's office, and it may turn up something more important than the original problem.
Red Boost
Powder · 1 scoop a day · 180-day refund
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This review is based on research of the seller's published information and the scientific literature on the ingredients, not on personal testing. The opinions are those of WellCraft 50 and not of the seller, and WellCraft 50 is not the seller or its representative. Information checked on November 4, 2026; always confirm current details on the product page. This content is for general information and is not medical advice.