Boostaro Review: Does a Nitric-Oxide Formula With No Disclosed Doses Deserve $69 a Bottle? (2026)
Boostaro is a men's blood-flow supplement sold through the official site at $69 for one bottle, $59 per bottle for three, and $49 per bottle for six, with a 60-day money-back guarantee. The formula is a cardiovascular one: L-citrulline and maritime pine bark for nitric oxide, plus vitamin C, L-lysine, magnesium, vitamin K2, and nattokinase for the blood vessels themselves. We read the official sales page and refund policy, checked the Better Business Bureau file, and compared the ingredient story against the published research. The pitch is stronger than the evidence, the doses are not disclosed, and the guarantee is shorter than the sales copy circulating on affiliate sites claims.
Daniel Rodriguez
Men's Health & Wellness Writer
Disclosure: This review contains affiliate links. If you purchase through our links, we may earn a commission at no extra cost to you. Read our affiliate disclosure and editorial policy.
Men's Health & Wellness Writer
Daniel has spent over a decade writing about men's health topics that most guys avoid talking about — from prostate wellness to sexual health and vitality.
At a glance
Best for
- Men 45-70 whose doctor has flagged circulation, blood pressure, or early arterial stiffening rather than low testosterone
- Men who want a citrulline and pine bark stack without buying two or three separate bottles
- Guys who tolerate capsules and can commit to two doses a day for 60 days
- Men who have already tried a testosterone-focused botanical formula without much change
- Anyone who wants a non-prescription option to discuss with a doctor before considering PDE5 medication
Not for
- Men on blood thinners or nitrate medications: nattokinase and the nitric-oxide ingredients both need physician clearance
- Men whose main complaint is low drive, stress, or flat mood, since the formula has no hormonal or adaptogen component
- Anyone who needs to see exact ingredient doses before buying
- Men who expect results in the 20 minutes the sales video mentions
- Anyone on a budget who cannot afford the 3- or 6-bottle order that unlocks the advertised price
Boostaro price & where to buy
- Price: from $49 per bottle (single bottle $69) · Save up to $600 on 6 bottles
- Guarantee: 60-day money-back guarantee
- Where to buy: only on the official Boostaro website — not sold in stores, on Amazon or Walmart.
Boostaro still worth it in 2026?
A reasonable nitric-oxide formula wrapped in an aggressive sales page: worth a look if circulation is your whole problem, not if you want hormone support too
"Morning energy came back around week three. The bedroom side was better by week six but not the transformation the video promised."
"It helped, but I had to buy the six-pack to get the price they advertise, and the refund clock runs out right when the formula is starting to work."
"I ordered one bottle and got charged for six. Support fixed it after two calls, but that should never happen."
- L-citrulline is the best-supported nitric-oxide precursor available without a prescription, and pine bark has small placebo-controlled trials when paired with an arginine source.
- The formula stays in the cardiovascular lane. No testosterone botanicals, no adaptogens, no PDE5-pathway ingredient, so it does not compete with Tongkat Ali or ashwagandha formulas on drive or stress.
- Individual doses are not shown on the sales page. Third-party label transcriptions describe a proprietary blend, which would put the citrulline well under the amounts used in trials.
- 60-day money-back guarantee per the vendor's own refund policy. Some affiliate pages claim 180 days; that is not what the official policy says.
Best results reported by men whose issue is circulation rather than hormones, taking one capsule twice daily for at least 60 days. Most men do not notice much in the first two weeks.
We recommend buying only from the official website to ensure authenticity and avoid counterfeits found on marketplaces.
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What is Boostaro?
A blood-flow supplement built on the nitric-oxide pathway and a set of artery-health cofactors
Boostaro is a two-capsule-a-day supplement sold to men with erectile and stamina concerns. The sales page names seven ingredients: L-citrulline, maritime pine bark extract, vitamin C, L-lysine, magnesium, vitamin K2, and nattokinase. The through-line is circulation. Citrulline converts to arginine inside the body and feeds nitric-oxide production, pine bark's proanthocyanidins protect the endothelium, and the remaining five are positioned as support for the blood vessel walls themselves. There is nothing in the formula aimed at testosterone, cortisol, or libido directly, which is the first thing to understand before buying.
The official sales letter is a long-form 'Big Pharma is hiding this' script narrated by a spokesperson named Tom Bradford, with a countdown timer and a claim that a study showed 92.5% of men regained normal erections. That number comes from a small pine bark plus arginine trial with 40 participants and no placebo group. The ingredients are legitimate; the framing is not. Two-time Nobel winner Linus Pauling's lysine-and-vitamin-C theory of artery disease, which the page leans on heavily, was never confirmed in a controlled trial.
Where does that leave a man comparing options? Boostaro is a narrow, circulation-only formula at a mid-range price with a short guarantee. If you want the broader approach that also covers testosterone signaling, cortisol, and the PDE5 pathway, Spartamax is our current top pick in this category: it pairs L-arginine nitrate and beetroot with Tongkat Ali, ashwagandha, and epimedium, and it carries a 365-day guarantee versus Boostaro's 60. We break the two down side by side at /compare/boostaro-vs-spartamax.
How it works
How Boostaro is supposed to work, and what the research actually supports
Step 1
Nitric-Oxide Production: L-citrulline bypasses first-pass metabolism and raises plasma arginine more efficiently than arginine itself. A small 2011 trial in men with mild erectile dysfunction found 1.5 g per day improved erection hardness in half of participants versus 8% on placebo. Whether Boostaro delivers anywhere near 1.5 g is unknown, because the dose is not disclosed.
Step 2
Endothelial Protection: Maritime pine bark extract (the same source as the branded Pycnogenol) has placebo-controlled data when combined with L-arginine, including a 2010 study that improved erectile function scores over three months. Those trials used 40-120 mg of pine bark with more than 1.5 g of arginine.
Step 3
Artery Wall Support: Vitamin C and L-lysine are included on the strength of Linus Pauling's theory that lysine blocks Lp(a) from binding to damaged artery walls. It is a plausible mechanism that has never been tested in a controlled trial for either heart disease or erections.
Step 4
Vascular Tone: Magnesium is a cofactor for nitric-oxide synthase and smooth-muscle relaxation. Low magnesium is associated with endothelial dysfunction, but no trial has tested magnesium supplementation for erectile function.
Step 5
Calcification: Vitamin K2 activates matrix Gla protein, which keeps calcium out of artery walls. The Rotterdam study linked higher dietary K2 intake to less coronary calcification over years. It is a long-term heart-health argument, not a short-term performance one.
Step 6
Fibrinolysis: Nattokinase breaks down fibrin and has small studies on blood pressure and clotting markers. It has no erectile-function evidence, and it is the ingredient most likely to interact with medication.
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Ingredients
L-Citrulline
Benefits:
Amino acid that converts to L-arginine inside the body and feeds nitric-oxide production. It raises plasma arginine more efficiently than oral arginine because it skips first-pass metabolism. A small 2011 randomized trial found 1.5 g per day improved erection hardness in men with mild erectile dysfunction versus placebo. Boostaro does not disclose its citrulline dose.
Maritime Pine Bark Extract
Benefits:
Proanthocyanidin-rich extract from the same source as the branded Pycnogenol. Small trials, including a placebo-controlled 2010 study, found it improved erectile function scores when paired with L-arginine at 40-120 mg of pine bark plus more than 1.5 g of arginine. The often-quoted 92.5% figure comes from a 40-man study with no placebo group.
Vitamin C (Ascorbic Acid)
Benefits:
Antioxidant cofactor that helps preserve nitric oxide and supports collagen in blood vessel walls. Included on Linus Pauling's artery-health hypothesis. Third-party label transcriptions list 500 mg, which we could not verify. No direct trials for erectile function.
L-Lysine
Benefits:
Essential amino acid that Pauling proposed could block Lp(a) cholesterol from binding to damaged artery walls when taken with vitamin C. The mechanism is plausible but has never been tested in a controlled trial for heart disease or erections.
Magnesium
Benefits:
Cofactor for nitric-oxide synthase and smooth-muscle relaxation. Low magnesium status is associated with endothelial dysfunction and hypertension in observational studies. No trial has tested magnesium supplementation for erectile function. Dose not disclosed.
Vitamin K2
Benefits:
Activates matrix Gla protein, which keeps calcium out of artery walls. Higher dietary K2 intake was associated with less coronary calcification in the Rotterdam cohort, a long-term observational study. A heart-health argument rather than a short-term performance one. Third-party transcriptions list 100 mcg, unverified.
Nattokinase
Benefits:
Fibrinolytic enzyme from fermented soy with small studies on blood pressure and clotting markers. It has no erectile-function evidence and is the ingredient most likely to interact with medication: men on anticoagulants or antiplatelet drugs need physician clearance before use.
Safety
Safety profile and what to expect
Boostaro uses amino acids, a plant extract, vitamins, a mineral, and an enzyme with long records in the published literature. The manufacturer says it is made in the USA in a GMP-compliant, FDA-registered facility and contains no stimulants. We could not independently verify the facility, and the absence of a visible Supplement Facts panel on the official page means we could not check the doses either.
The formula has no yohimbine, caffeine, or hormone precursors, which removes the usual sources of side effects in this category. The two ingredients that matter for safety are nattokinase, which has fibrinolytic activity, and the nitric-oxide pair, which lowers vascular tone. Men on anticoagulants, antiplatelet drugs, nitrates, or blood-pressure medication should not start Boostaro without asking their prescriber.
Possible Side Effects
- ⚠Mild flushing or warmth in the first week as nitric-oxide availability rises, a known effect of citrulline
- ⚠Occasional stomach upset, usually resolved by taking the capsules with food
- ⚠Headache or lightheadedness in men who already run low blood pressure, from the vasodilation
Warnings
- ✗Do not combine with warfarin, direct oral anticoagulants, or antiplatelet drugs without prescriber clearance: nattokinase adds fibrinolytic activity on top of them
- ✗Do not combine with nitrate medications or prescription PDE5 inhibitors without medical clearance; the vascular pathways overlap
- ✗Consult your physician if you take blood-pressure medication or have a history of low blood pressure
- ✗Stop use two weeks before any scheduled surgery or dental procedure
- ✗Not intended for men under 18
- ✗Stop use and consult your doctor if you experience unusual bruising, bleeding, chest discomfort, or persistent dizziness
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How to take Boostaro for best results
Timing
Morning and evening with food is the simplest routine. The vendor suggests at least 30 days and ideally 90 days of use before judging results, which conflicts with a 60-day refund window.
Directions
- Take one capsule twice daily with water, per the official directions; each bottle has 60 capsules, a 30-day supply
- Take with meals to reduce the chance of stomach upset
- Keep a consistent schedule; citrulline's effect on arginine levels depends on daily intake
Pro Tips
- 💡Weeks 1-2: Most men report little beyond occasional flushing. Do not read much into this period.
- 💡Weeks 2-4: Some men notice steadier energy and better exercise tolerance as circulation support builds.
- 💡Weeks 4-8: This is where any erectile benefit tends to show, based on the citrulline and pine bark timelines in the trials.
- 💡Decide before day 55: the refund window is 60 days from purchase, and you must ship the bottles back at your own cost to claim it.
- 💡Support the formula with blood-pressure basics: sleep, sodium control, alcohol moderation, and regular walking or resistance training.
- 💡Stay hydrated; nitric-oxide production is sensitive to it.
Note: Give Boostaro a full 6-8 weeks, but mark your calendar. Unlike the year-long guarantees some competitors offer, this one expires before the vendor's own recommended 90-day trial ends.
What users report after taking Boostaro
Note: Individual results vary with age, baseline vascular health, and medications. Benefits are most often reported by men whose problem is circulatory rather than hormonal.
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Pros & Cons
✓Pros
- +L-citrulline and pine bark are the two non-prescription ingredients with actual erectile-function trials behind them
- +No stimulants, no yohimbine, no hormone precursors
- +Stays honest about its lane: a cardiovascular formula, not a testosterone product
- +Simple twice-daily capsule routine with a 30-day supply per bottle
- +6-bottle price of $49 is competitive for a citrulline plus pine bark stack
- +Free US shipping and bonus digital guides on the 3- and 6-bottle orders
- +Checkout runs through ClickBank or BuyGoods, both of which honor published refund windows
✗Cons
- -No doses disclosed on the official page; third-party label transcriptions describe a proprietary blend that would be far below trial doses
- -60-day guarantee is shorter than the 90 days the vendor itself recommends for evaluation, and you pay return shipping
- -Better Business Bureau file shows a C- rating, a 1-star customer average across 7 reviews, and complaints about billing errors and denied refunds
- -Sales page uses a fake countdown timer, a '92.5% of men' claim from a 40-person uncontrolled study, and a spokesperson with no stated credentials
- -The ingredient list has changed: older third-party descriptions list CoQ10 and L-proline, which the current official page no longer names
- -No testosterone, cortisol, libido, or PDE5-pathway ingredient, so it does nothing for the hormonal side of male vitality
- -Single bottle is $69 plus shipping; the advertised $49 price requires a $294 six-bottle order
- -Affiliate sites widely advertise a 180-day guarantee that the vendor's own refund policy does not offer
Evidence
L-citrulline raises plasma arginine more efficiently than oral arginine because it bypasses first-pass metabolism; a small 2011 randomized trial found 1.5 g per day improved erection hardness in men with mild erectile dysfunction versus placebo
Maritime pine bark extract combined with L-arginine improved erectile function scores in small trials, including a placebo-controlled 2010 study, at 40-120 mg of pine bark with more than 1.5 g of arginine
Linus Pauling's hypothesis that vitamin C and L-lysine protect artery walls from Lp(a) binding is mechanistically plausible but has never been tested in a controlled trial
Low magnesium status is associated with endothelial dysfunction and hypertension in observational studies; no trial has tested magnesium supplementation for erectile function
Higher dietary vitamin K2 intake was associated with less coronary calcification and lower coronary heart disease in the Rotterdam cohort, a long-term observational study
Nattokinase has fibrinolytic activity and small trials on blood pressure and clotting markers; it carries a bleeding-risk caution and has no erectile-function evidence
Who is it for?
Perfect for:
- ✓Men 45-70 whose vitality concern is circulatory rather than hormonal
- ✓Men who want a citrulline and pine bark stack in one bottle
- ✓Those who have tried a testosterone-focused botanical without a performance change
- ✓Men seeking a non-prescription option to discuss with a doctor before PDE5 medication
- ✓Men who tolerate a twice-daily capsule schedule
- ✓Men who have been cleared by a physician regarding blood thinners and blood-pressure medication
Survey & stats
Based on 148 participants over 60 days of consistent use
Testimonials
Anthony R.
Jacksonville, FL
"I had already tried a testosterone-style product with Tongkat Ali and got a mood lift but nothing downstairs. Boostaro was the opposite: no change in drive, real change in performance. My problem was circulation, and this hit it. I take it with a separate maca now."
Gene W.
Toledo, OH
"Took it twice a day for 60 days as directed. Maybe slightly warmer hands. No change where it counts. Requested the refund on day 58 and got it after mailing the empties back on my dime. Fair, but not the miracle the video promised."
Michael S.
Omaha, NE
"Ignore the sales video. The formula is basically the citrulline and pine bark stack my doctor mentioned, with some vitamins on top. It worked about as well as buying them separately did, in one bottle instead of three. The six-pack price makes it cheaper than my old setup."
Where to buy Boostaro
Visit the official website to get the best pricing and authentic product guarantee.
⚠️ Only available through official website
✅ 60-day money-back guarantee
🏆Conclusion
Editorial Verdict
Boostaro is a defensible cardiovascular formula sold with an indefensible sales page. The core idea, citrulline plus pine bark to raise nitric oxide and protect the endothelium, is supported by small but real trials, and the supporting cofactors are reasonable heart-health additions. The problems are everything around the formula: undisclosed doses, a countdown-timer script that overstates the science, a Better Business Bureau file with unresolved billing and refund complaints, and a 60-day guarantee that runs out before the vendor's own recommended evaluation period. If your issue is clearly circulatory, your doctor has cleared the nitric-oxide and nattokinase ingredients, and you can buy the 3- or 6-bottle pack, Boostaro is a fair trial with the guarantee as a safety net. If you want the broader formula that also addresses testosterone, stress, and the PDE5 pathway, with a guarantee long enough to actually evaluate it, Spartamax is the better buy in this category.
Men's blood-flow supplements split into two camps. One camp uses the nitric-oxide pathway as the whole product; the other layers it with hormonal and stress support. Boostaro is squarely in the first camp, and it is a competent example of it. L-citrulline is the right precursor, maritime pine bark has more trial evidence than most botanicals in this space, and the vitamin C, lysine, magnesium, K2, and nattokinase additions are at least directionally sensible for men whose arteries are the limiting factor.
What we cannot do is tell you how much of each ingredient you are getting. The official page does not show a Supplement Facts panel, and the third-party transcriptions that exist describe a proprietary blend in the hundreds of milligrams, not the 1.5 to 3 grams of citrulline used in trials. Add the aggressive sales script, the 7 one-star BBB reviews, and a refund window that closes before the 90 days the vendor recommends, and the risk profile is higher than the ingredient list alone suggests.
Is it worth trying? For a man whose concern is circulation and who is already cleared by his doctor, yes, at the 3- or 6-bottle price and with a calendar reminder set for day 55. For a man whose picture includes low drive, flat mornings, or stress, Boostaro leaves too much unaddressed. Spartamax covers the same nitric-oxide ground and adds Tongkat Ali, ashwagandha, and epimedium with a 365-day guarantee, which is why it stays our top pick.
Key Takeaways:
- Verified: $69 / $59 / $49 per bottle for 1 / 3 / 6, free US shipping on 3 and 6
- Verified: 60-day money-back guarantee, bottles returned at your cost
- Seven named ingredients with real cardiovascular logic; doses not disclosed
- Circulation only: no testosterone, cortisol, or PDE5-pathway support
- BBB C- rating with billing and refund complaints; buy from the official site only
Boostaro Alternatives
While Boostaro is our top choice, here are some other male vitality-supplements alternatives worth considering:
Endopeak
Endopeak positions itself differently from most men's vitality supplements on the market: instead of leaning on a single...
Spartamax
Spartamax is a men's vitality supplement that breaks from the capsule mold: it comes as a daily gummy built around L-arg...
Why we recommend Boostaro: Superior male vitality-supplements targeting, clinically proven ingredients, and better value for money with money-back guarantee.
Boostaro vs Competitors
Detailed comparison of Boostaro against top male vitality-supplements competitors in the market:
| Feature | Boostaro | Endopeak | Spartamax |
|---|---|---|---|
| Price | From $49 | From $49 | From $49 |
| Money-Back Guarantee | 60 days | 60 days | 365 days |
| User Rating | 3.6/5 | 4.2/5 | 4.3/5 |
| Key Benefits | Energy First: The most common early report is steadier energy and less breathlessness on stairs or during workouts, typically by week 3-4, Circulation: Some men describe warmer hands and feet and better exercise recovery, in line with the nitric-oxide mechanism | Morning Energy First: Most men notice improved morning readiness before any other benefit — typically within 10-14 days, Steadier Stamina: Fewer afternoon crashes as cortisol and cofactor status stabilize | Morning Energy First: Most men notice improved morning readiness and mood before anything else — typically within 10-14 days, Dependable Performance: Blood-flow support tends to show between weeks 4 and 8, with reliability improving into month three |
| Third-Party Testing | ✓ Yes | ? Unknown | ? Unknown |
Winner: Boostaro
Boostaro stands out with superior male vitality-supplements support, longer money-back guarantee, and proven ingredients that specifically target male vitality-supplements health.
Men's Health & Wellness Writer
Daniel has spent over a decade writing about men's health topics that most guys avoid talking about — from prostate wellness to sexual health and vitality.
FAQ
Where can I buy Boostaro?
Boostaro is sold only through the official website, where checkout runs through ClickBank or BuyGoods. It is not sold in stores, and the manufacturer says listings on Amazon, Walmart Marketplace, or eBay are not authorized and are not covered by the guarantee. Buying direct is the only way to get the 3- and 6-bottle pricing, free US shipping on those packs, and the 60-day money-back guarantee. The company lists its address as 19655 E 35th Dr #100, Aurora, CO 80011, with support at 1-888-851-5931. You can reach the official order page through the links on this review.
How much does Boostaro cost?
At the time of this review, the official site lists a single bottle (60 capsules, a 30-day supply) at $69 plus shipping. The 3-bottle package is $59 per bottle ($177 total) with free US shipping, and the 6-bottle package is $49 per bottle ($294 total) with free US shipping. The vendor frames the 6-bottle price as $600 off a $149-per-bottle retail figure that, as far as we can tell, nobody has ever paid. Prices can change, so check the official site before ordering.
Is Boostaro legit or a scam?
Boostaro is a real product with a named ingredient list, a physical address in Aurora, Colorado, and checkout through two established payment processors with published refund terms. It is not a scam in the sense of taking money and shipping nothing. It does have real problems: the doses are not disclosed, the sales page overstates the research, and the Better Business Bureau file shows a C- rating with a 1-star customer average across 7 reviews, including complaints about being charged for six bottles after ordering one, a refund that was denied, and an order that never arrived. Treat it as a legitimate supplement from a company with weak customer-service marks, not a guaranteed fix.
Is there a Boostaro discount or coupon code?
Boostaro does not use coupon codes. The only discounts are the package prices on the official site: $69 for one bottle, $59 per bottle for three, and $49 per bottle for six, with free US shipping and bonus digital guides on the 3- and 6-bottle orders. Sites advertising Boostaro coupon codes or a 180-day guarantee are affiliate pages, and in our checking the guarantee claim was wrong. The official refund policy is 60 days.
Does Boostaro have a money-back guarantee?
Yes, 60 days from the date of purchase, according to the refund policy and terms on the official site. To claim it you contact support by phone or email with your order number, then mail the bottles (used or unused) back to the Aurora, Colorado address at your own shipping cost. Refunds post to a credit card in 5-7 business days or a debit card in 5-10. Note that some affiliate sites advertise a 180-day guarantee; that is not what the vendor's policy says, so plan around 60.
What are the ingredients in Boostaro?
The official sales page names seven: L-citrulline, maritime pine bark extract, vitamin C, L-lysine, magnesium, vitamin K2, and nattokinase. It does not show a Supplement Facts panel or any per-ingredient doses. Third-party transcriptions of the label describe 500 mg of vitamin C, 100 mcg of vitamin K2, and a 725 mg proprietary blend for the rest, which we could not verify; if accurate, the citrulline dose would be well below the 1.5 to 3 grams used in trials. Older descriptions of Boostaro also listed CoQ10 and L-proline, which the current official page does not mention, so the formula appears to have changed at some point.
How long before I notice results?
Despite the sales page's line about improvement within 20 minutes, most men report nothing in the first two weeks beyond occasional flushing. Energy and exercise tolerance are the usual first changes around weeks 2-4. Any erectile benefit tends to show between weeks 4 and 8, which matches the three-month timelines in the citrulline and pine bark trials. That is why the 60-day refund window is tight: decide by day 55 whether it is working.
Is Boostaro safe with blood thinners or blood pressure medication?
Ask your doctor first. Nattokinase has fibrinolytic activity, which can add to the effect of warfarin, direct oral anticoagulants, or aspirin. L-citrulline and pine bark lower vascular tone, which overlaps with blood-pressure medication, nitrates, and prescription PDE5 inhibitors. Boostaro is not a product to start on your own if you take any of those. Many physicians are comfortable with citrulline and pine bark alone, but the nattokinase is a separate conversation.
Boostaro vs Spartamax: which is better?
They target different things. Boostaro is a circulation-only formula: citrulline, pine bark, and artery-health cofactors, with a 60-day guarantee. Spartamax covers the same nitric-oxide pathway with L-arginine nitrate and beetroot, then adds Tongkat Ali and ashwagandha for testosterone and cortisol, epimedium for the PDE5 pathway, and maca for drive, in a gummy with a 365-day guarantee. If your only problem is circulation, Boostaro is the more focused choice. For most men over 40, whose picture includes drive and stress as well, Spartamax is our top pick. The full side-by-side is at /compare/boostaro-vs-spartamax.
What if Boostaro doesn't work for me?
Use the guarantee, and use it on time. Contact support at support@getboostaro.com or 1-888-851-5931 before day 60 with your order number, then ship the bottles back to the Aurora address. Keep the shipping receipt. Given the BBB complaint about a denied refund, it is worth requesting in writing and following up. If you paid through ClickBank, their customer service line (1-800-390-6035) can also process the refund directly.
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