Review · Men's Health

Nitric Boost Ultra

Nitric Boost Ultra packs the standard nitric oxide ingredient roster (L-citrulline, L-arginine, beetroot, horny goat weed) into an 8-ingredient proprietary blend powder, then layers on dong quai (a women's herb), D-aspartic acid (testosterone, not erectile function), and ginkgo (cognitive). L-citrulline at 6 g/day and beetroot juice are the only real evidence-supported ED-adjacent ingredients here — and at undisclosed doses inside a powder, you cannot confirm clinical-dose delivery.

Verdict Skeptical 3.6/10
Nitric Boost Ultra review evidence and wellness context
Reviewed evidence Claims, dose transparency, refund path, and ingredient plausibility checked.

Skeptic read

Skeptical3.6/10

Nitric Boost Ultra packs the standard nitric oxide ingredient roster (L-citrulline, L-arginine, beetroot, horny goat weed) into an 8-ingredient proprietary blend powder, then layers on dong quai (a women's herb), D-aspartic acid (testosterone, not erectile function), and ginkgo (cognitive). L-citrulline at 6 g/day and beetroot juice are the only real evidence-supported ED-adjacent ingredients here — and at undisclosed doses inside a powder, you cannot confirm clinical-dose delivery.

Price checked
From $49 (single bottle $69)
Dose visibility
Limited: key ingredient doses are hidden or hard to verify
Main risk
Proprietary blend — no individual ingredient doses disclosed
Better use case
Men with mild, occasional erectile concerns who want a nitric-oxide-based pre-intimacy support and won't substitute it for medical workup
Skip if
You take nitrates (nitroglycerin, isosorbide) — combining nitric-oxide-boosting supplements with nitrate medication can cause severe hypotension
Evidence file
5 sources attached
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Purchase link unavailable

What Nitric Boost Ultra is actually selling

Nitric Boost Ultra is a powdered supplement (mixed in water, taken before intimacy) marketed to men 40+ for sexual performance via the nitric oxide pathway. The pitch sits at the intersection of three different ingredient categories: NO precursors (L-arginine, L-citrulline), traditional sexual herbs (horny goat weed, dong quai), and testosterone-pathway ingredients (D-aspartic acid). It packages all of them into one 8-ingredient blend.

The biological hypothesis is real and well-known: erectile function depends on endothelial nitric oxide → vasodilation of penile arterioles. PDE5 inhibitors (sildenafil, tadalafil) work by preventing breakdown of NO-stimulated cGMP. Nitric oxide precursors raise the substrate side of the same pathway. L-citrulline at 1.5–6 g/day has small RCT evidence (Cormio 2011) for mild ED.

What you cannot tell from Nitric Boost Ultra’s label is whether it delivers L-citrulline at 1.5 g, 6 g, or 200 mg per serving. The proprietary blend hides the doses.

The label — what’s in the powder

IngredientPlausible functionClinical dose
L-Citrulline DL-MalateNO precursor, mild ED evidence1.5–6 g/day
L-ArginineNO precursor, weaker than citrulline (first-pass)3–6 g/day
Beetroot PowderNitrate → NO500 mg juice equivalent or higher
Horny Goat Weed (Epimedium)Traditional libido herb, weak evidence500–1000 mg of standardized extract
Dong QuaiWomen’s hormonal herb (anomaly here)N/A — should not be in this formula
Ginkgo Biloba PowderCognitive/circulation, very weak ED evidence120–240 mg standardized extract
D-Aspartic AcidTestosterone pathway (not ED)3 g/day for testosterone studies
Niacin (B3)Vasodilation at high doses100–500 mg (flushing dose)

Eight ingredients, no individual doses disclosed. Powder format means in principle they could fit clinical doses — a scoop is much larger than a capsule. In practice, the proprietary blend means you can’t confirm.

Evidence review, ingredient by ingredient

L-Citrulline DL-Malate

Strongest ingredient by evidence quality for the stated indication. Cormio 2011 used 1.5 g/day citrulline in mild ED with measurable improvement. Schwedhelm et al. 2008 confirmed citrulline raises plasma arginine more reliably than oral arginine. Single-ingredient L-citrulline 6 g powder runs ~$15/month.

L-Arginine

Older NO precursor research. Oral L-arginine has poor first-pass survival (gut bacteria metabolize it). High-dose oral arginine (5–9 g) has small ED-related effect signals in older trials but L-citrulline has largely replaced it for serious users.

Beetroot Powder

Webb et al. 2008 established that dietary nitrate from beetroot raises plasma nitrite, lowers BP, and improves endothelial function. Direct ED evidence is thin but the mechanism plausibly extends. Beetroot powder at 5–10 g is standard for performance contexts.

Horny Goat Weed (Epimedium)

Active compound is icariin. In vitro PDE5 inhibition has been shown but at concentrations far above what oral dosing achieves. Human ED RCTs are essentially absent. Ranks below citrulline and beetroot on evidence.

Dong Quai

Genuinely puzzling inclusion in a male enhancement product. Dong quai (Angelica sinensis) is the canonical women’s hormonal herb in TCM, used for menstrual support. Phytoestrogenic effects are documented. Its presence here suggests the formulator copied from a generic “circulation herbs” list rather than designing for the indication.

Ginkgo Biloba

A 1998 study by Cohen and Bartlik on antidepressant-induced sexual dysfunction in 63 patients reported subjective improvement, but methodological concerns and replication failures since have weakened the case. Ginkgo for ED specifically is poorly supported.

D-Aspartic Acid

Testosterone pathway, not ED. Topo 2009 showed small testosterone elevation at 3 g/day. Replication has been mixed. Including this in an ED powder conflates testosterone, libido, and erectile function — three distinct biological problems.

Niacin

Vasodilation at high doses produces the characteristic “niacin flush.” Some small evidence for ED benefit at 1500 mg/day in men with hyperlipidemia (Ng et al. 2011). At undisclosed dose in a blend, indeterminate.

Cost-per-clinical-dose math

Nitric Boost Ultra: $49–69 per 30-day jar.

Single-ingredient stack matching the evidence-based ED ingredients:

ProductMonthly cost
Bulk Supplements L-Citrulline DL-Malate, 6 g/day$15
HumanN SuperBeets / generic beetroot powder$25
Total~$40/month

This delivers L-citrulline at 6 g/day (4× the Cormio 2011 dose, which used 1.5 g) and beetroot at performance-relevant doses, for less than the single-jar price of Nitric Boost.

Important safety note

ED can be the first symptom of cardiovascular disease (the penile arteries are smaller and clog earlier than coronaries). Persistent or worsening ED in men 40+ should prompt a primary care or urology visit, not an indefinite trial of supplement powders. PDE5 inhibitors (sildenafil, tadalafil) under physician supervision are highly effective and inexpensive as generics.

The combination most likely to cause harm: NO-boosting supplements + nitrate medications (nitroglycerin) → severe hypotension. If you take nitrates, do not take Nitric Boost.

Marketing teardown

May 2026 audit of getnitricboost.com:

  • “Nitric Boost rekindled the spark in my marriage” — first-name testimonials with no verifiable identities
  • $200 CPA contest framing aimed at affiliates — buyer acquisition cost is high, which usually correlates with sales-page aggression
  • “6-time Diamond vendors” — ClickBank Platinum/Diamond status reflects sales volume, not product quality
  • Pricing ladder $69 / $59 / $49 — standard architecture
  • 60-day ClickBank refund applies
  • ClickBank catalog flag hasRecurring: true — verify subscription enrollment carefully at checkout
  • “Plants a tree per sale” / “18K pounds of plastic removed” — environmental claims used as conversion lift, unverified

Verdict rationale

Nitric Boost Ultra gets a 3.6 because:

  1. The two real evidence-supported ingredients (L-citrulline, beetroot) are present but undisclosed-dose
  2. The blend includes dong quai (women’s herb) and D-aspartic acid (testosterone, not ED) — formulation incoherence
  3. Pricing premium relative to single-ingredient citrulline is significant
  4. Marketing implies treatment of ED, which has prescription-level interventions for persistent cases
  5. Recurring billing flag without prominent disclosure

It does not score lower because:

  1. The headline ingredients are real and the powder format could in principle deliver clinical doses
  2. No banned substances or PDE5 adulteration history (this is the major risk in male enhancement category — see FDA tainted product database)
  3. ClickBank refund applies

Bottom line

Nitric Boost Ultra contains real nitric oxide precursors at undisclosed doses, padded with herbs that don’t belong in an ED formula, sold at premium pricing under aggressive affiliate compensation. For mild occasional concerns, single-ingredient L-citrulline at 6 g/day is cheaper, evidence-supported, and lets you confirm dose. For persistent ED, see a urologist — it can be a cardiovascular warning sign.

Skeptic Desk verdict: Skeptical — 3.6/10. Real ingredients, formulation incoherence, premium pricing, men’s-health category caveats apply.

Here's what I'd actually do

If the sales VSL got you to reach for your card before the ingredient panel got you to ask any questions:

Close this tab. Nitric Boost Ultra is in the band where the marketing is doing the heavy lifting and the formula is not. There are evidence-based versions of every promise on that sales page, and most of them cost a third of the price with full label transparency.

Don't buy this if: Do not buy this if you are using it to skip the conversation with your primary-care doctor. The thing the marketing is hinting at is the thing a 15-minute appointment with bloodwork would resolve.

Dr. Rhett Calder · Internal medicine, retired (MD, board-certified 1989–2023)

Sources and review method

Supplement Skeptic reviews compare the visible label and sales claims against published research, dose ranges used in human studies, safety guidance, checkout terms, and refund mechanics. This page is not medical advice.

  1. Cormio L, et al. Oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction. — Foundational L-citrulline / mild ED RCT used as evidence anchor.
  2. Schwedhelm E, et al. Pharmacokinetic and pharmacodynamic properties of oral L-citrulline and L-arginine. — Used for the L-citrulline vs L-arginine bioavailability discussion.
  3. Webb AJ, et al. Acute blood pressure lowering, vasoprotective, and antiplatelet properties of dietary nitrate via bioconversion to nitrite. — Beetroot nitrate / nitric oxide conversion / blood pressure RCT.
  4. Topo E, et al. The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. — Used for the D-aspartic acid testosterone discussion — to clarify it is not an ED ingredient.
  5. FDA: Tainted sexual enhancement products. — Background context — male enhancement category has well-documented adulteration history; informs the 'see a doctor for persistent ED' guidance.

Frequently asked questions

Does L-citrulline actually help with erections?
Modestly, in mild cases. Cormio et al. 2011 (Urology) randomized 24 men with mild ED to 1.5 g/day L-citrulline vs placebo for one month. Erection hardness score improved in 50% of citrulline group vs 8.3% placebo. The effect size is real but small, and the population was specifically *mild* ED. L-citrulline is essentially a slower-release source of L-arginine — it survives first-pass metabolism better than oral arginine, raising plasma NO substrate more reliably. Single-ingredient L-citrulline at 6 g/day is widely available for ~$15/month. The Nitric Boost dose is undisclosed.
What about beetroot juice for ED?
Beetroot's nitrate content drives short-term blood pressure reduction and exercise performance benefits. Direct ED RCTs are sparse. The mechanism (more nitric oxide → better endothelial function → better vasodilation) plausibly extends to erectile tissue, but the human ED evidence base for beetroot specifically is thin. As part of a nitric oxide-boosting stack, it's defensible. As a standalone ED treatment, the data isn't there.
Why is dong quai in this formula?
Honest answer: it shouldn't be. Dong quai (Angelica sinensis) is a traditional Chinese herb used primarily for menstrual and menopausal support in women. It has phytoestrogenic effects. Its inclusion in a men's nitric oxide product is either (a) loose copy-and-paste from a generic herbal blend or (b) an attempt to imply 'circulation' benefit using a herb whose primary use case is unrelated. Either way, it's a formulation red flag.
Is D-aspartic acid the same as ED treatment?
No. D-aspartic acid is studied for testosterone production — Topo et al. 2009 saw small testosterone increases at 3 g/day, though replication has been mixed. Testosterone optimization is loosely related to libido, but it does not directly treat erectile dysfunction (which is primarily a vascular issue, not a hormonal one). Including D-aspartic acid in an ED product is brand confusion — they're conflating libido, performance, testosterone, and erections as if they were the same problem.
What does Nitric Boost cost?
$69 single jar (30-day supply), $59/jar at 3-pack ($177), $49/jar at 6-pack ($294). The average ClickBank earned-per-sale of $147.54 at 75% commission implies the typical buyer is paying around $197 — meaning most buyers are taking the 3- or 6-pack bundles. Read the order page for any recurring billing flags before completing checkout.