Rated 5 out of 5

4.9 stars | 100k+ reviews | Doctor approved

6 Reasons You Can Feel BloodFlow-7® XXXL Working

Most circulation supplements are underdosed, single-pathway, and impossible to feel. BloodFlow-7® XXXL is the maximum-strength version of the formula Juvenon has refined for more than two decades, built around four clinically studied ingredients at the doses the research actually used.

Doctor Approved Formula Save 60% on XXXL

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BloodFlow-7® Nitro XXXL bottle with Dr. Luke Bucci, PhD — 230% increase in nitric oxide from S7®, 62% improvement in arterial dilation
01

You Can Feel It Working.

Man lifting a barbell in a gym

The pump is the receipt, and it shows up in about 15 minutes.

Working muscles need blood to deliver oxygen and clear what the effort leaves behind. The more freely that blood moves, the harder the muscle can work and the faster it settles afterwards. The key is nitric oxide. It signals your blood vessels to relax and widen, helping support healthy blood flow through the muscles doing the work.

That is the part most circulation products get wrong. They put in enough of an ingredient to print it on the label and not enough to notice. XXXL is dosed so the effect is something you register during a session, not something you take on faith.

02

The Full Research Dose of Nitrosigine®.

Chart: Nitrosigine® dose — 500 mg in BloodFlow-7® versus 1,500 mg in BloodFlow-7® XXXL, the full dose used in the published research

Maximum-strength means 1,500 mg on the label, not a proprietary blend that hides it.

Nitrosigine® is an enhanced arginine engineered to stay in circulation rather than break down early. Standard BloodFlow-7® carries 500 mg. XXXL carries 1,500 mg, the full dose used in the published research, and it keeps arginine elevated for up to six hours per dose.

That window matters more than the first hour. It is the difference between a supplement that helps you start and one that is still working when the session is long, the shift is long, or the day is long.

03

It Works Both Sides of the Nitric Oxide Equation.

Green coffee beans, green tea, turmeric, blueberries, cherries, broccoli and kale

One ingredient supplies the raw material. Another protects what your body makes from it.

Nitrosigine® hands your body the building block for nitric oxide. S7® works on the other side. It is a blend of seven plant extracts, clinically shown to raise the body's own nitric oxide by up to 230% at a 50 mg dose. It supplies no arginine and no nitrates. Its polyphenols reduce the oxidative stress that breaks nitric oxide apart before your body can use it, so more of what you already produce stays in play.

Most products pick one pathway and double down on it. XXXL runs both, which is why the two ingredients are in the same capsule instead of a bigger dose of one.

04

Built for Circulation, Not Just the Pump.

Man carrying a bag of soil in his garden

The training benefit is the one you notice first. It is not the one that matters most.

Trans-Resveratrol has been shown to improve arterial dilation by up to 62%. That is vessel relaxation across the whole system, not a workout effect, and it is the reason customers who never set foot in a gym reorder XXXL year after year.

BioPerine® is the fourth ingredient. It does one job, which is to help the other three absorb. A formula that reads well on the label and does not absorb is the definition of fairy dust, and it is what XXXL was built to replace.

05

One Capsule Product. No Mixing, No Timing Rituals.

Hand holding a BloodFlow-7® XXXL capsule next to the bottle

It fits inside the stack you already run.

Powders need a shaker, a sink and a plan. Nitrate loading needs a schedule. XXXL is a capsule you take as directed on the label, with water, wherever you are. It travels, it sits next to the creatine and the fish oil, and it does not ask you to change anything else.

Every ingredient and every dose is printed on the panel. If you are the kind of person who reads the back of the bottle before the front, that is the point.

06

Rated 4.9 by Verified Customers.

Collage of verified Juvenon customers — 100k+ reviews

Real customers on the maximum-strength formula, in their own words.

Juvenon has made BloodFlow-7® for more than two decades, and XXXL is the version customers ask for when the standard dose stops being enough. Over 431 verified reviews sit at 4.9 out of 5 on the capsule alone. Read them below before you decide.

Maximum-Strength Circulation Support.
Up to 60% Off on Subscription.

4.9/5.0(431), 500K+ Customers

BloodFlow-7® XXXL

Maximum-strength circulation support in a capsule. Four clinically studied ingredients at the doses the research used.

  • Supports healthy blood flow you can feel in about 15 minutes
  • Sustained arginine elevation for up to 6 hours per dose
  • Supports arterial health and whole-system circulation
  • Doctor approved and made in an FDA-registered, cGMP-certified facility
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  • 60-day money-back guarantee
  • FDA-registered, cGMP-certified facility
  • Doctor approved
Why XXXL?

Standard BloodFlow-7® carries 500 mg of Nitrosigine®. XXXL carries 1,500 mg, the full amount used in the published research, alongside S7®, Trans-Resveratrol and BioPerine®.

It is the version customers move to when the standard dose stops being enough, built for longer sessions, longer shifts and longer days. Same four ingredients, same one capsule format, at the amounts the studies actually ran.

What's Inside
  • Nitrosigine® (1,500 mg) An enhanced arginine built to stay in circulation rather than break down early. It keeps arginine elevated in the blood for up to six hours per dose.
  • S7® A blend of seven plant extracts, clinically shown to raise the body’s own nitric oxide by up to 230% at a 50 mg dose. It supplies no arginine and no nitrates. Its polyphenols reduce the oxidative stress that breaks nitric oxide apart before your body can use it.
  • Trans-Resveratrol Shown to improve arterial dilation by up to 62%. That is vessel relaxation across the whole system, not a training effect.
  • BioPerine® Black pepper extract with one job, which is helping the other three absorb.

No caffeine and no stimulants. Every ingredient and every amount is printed on the supplement panel, with nothing hidden inside a proprietary blend.

Science and Quality

The formula is built on nitric oxide signalling, the discovery recognised with the 1998 Nobel Prize in Medicine. Nitric oxide is the signal that tells your blood vessels to relax and widen so blood moves freely to every organ and cell.

Juvenon has been formulating in this category for more than two decades. BloodFlow-7® XXXL was developed by Dr. Luke Bucci, PhD, Juvenon’s Chief Science Officer, a biomedical scientist and clinical nutritionist, and built to Juvenon’s Beyond Substantiation standard. It is manufactured in the United States in an FDA-registered, cGMP-certified facility.

Directions

Take as directed on the label with a glass of water. Many people take it about 15 minutes before whatever they are about to do, a session, a round, a walk, or a long day on their feet.

There is no powder to mix, no loading phase and no timing ritual, and because there is no caffeine it can be taken at any hour. It works best as a daily habit, since circulation support builds with consistent use. If you take prescription medication, speak with your doctor before adding any supplement.

Subscription and Shipping

Subscriptions ship automatically on the schedule you choose and include free shipping on every order. You can pause, reschedule or cancel any time from your account, with no fees and no minimum number of orders.

One-time orders ship free over $75. Everything dispatches from our United States facility, and tracking lands in your inbox as soon as your order is on its way.

Guarantee

Try BloodFlow-7® XXXL for 60 days. If it is not doing what you hoped, contact our team within 60 days of delivery and we will refund your purchase. No forms to chase and no hoops.

Sixty days is long enough to judge it on how you feel rather than on how it reads on a label.

Every dose of Nitro XXXL is backed by science to help athletes, professionals, and anyone looking to optimize their performance feel the difference — quickly, safely, and effectively."
Dr. Luke Bucci.
Juvenon Chief Science Officer.
Dr. Luke Bucci
Rated 5 out of 5

Rated 4.9 out of 5 based on 431 reviews

Real Customers. Real Results.

Living well.

With Juvenon, my blood pressure remains under control. My Dr. is pleased and I feel great. When I first started taking it, I lost 20 pounds without even trying. My skin looks younger.

Open up and clean up

Opens up for the blood flow. 60 yrs old male trying everything and this works. I started out using the regular product and moved to XXXL and taking 3 in morning and 3 at night for 2 weeks and you’ll notice difference, then I reduced to 2 each time and alternating 3 in here and there but product works great after a couple of weeks. Be patient, it works. In fact I just gave a half a bottle to a friend and he’s noticing a difference also and he’s 62.

Excellent Product

I use this product right before my am workouts. It's highly effective at increasing nitric oxide levels which causes vasodilation. You really feel the pump and see the results. Highly recommended

average rating 4.9 out of 5
Based on 431 reviews
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99% of reviewers would recommend this product to a friend
Customer photos and videos
431 Reviews
Reviewed by Lisa P.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Extreme Energy

2 times the boost in energy, and I love that all the products have natural ingredients, and not harmful ingredients that don't work.

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Reviewed by Rita L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Living well.

With Juvenon, my blood pressure remains under control. My Dr. is pleased and I feel great. When I first started taking it, I lost 20 pounds without even trying. My skin looks younger.

At one point, I thought I was doing so good that I stopped taking it for 2 months. My blood pressure shot back up. The weight came back and my skin was sagging. I started taking it again about 2 months ago. The weight fell right off, my blood pressure is under control and I feel great. It’s all about the flow.

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Reviewed by CHARLES S. G.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Blood Flow-7

Began taking this supplement to relieve heaviness in my legs. It worked!

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Reviewed by michael t.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted

seems to work some.

when i first started taking 7, i felt it. now after 2 months, i don't feel the same as i did when i started. i'll continue through the first 4 months to give it a fair shake.

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Reviewed by Keith G.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Open up and clean up

Opens up for the blood flow. 60 yrs old male trying everything and this works. I started out using the regular product and moved to XXXL and taking 3 in morning and 3 at night for 2 weeks and you’ll notice difference, then I reduced to 2 each time and alternating 3 in here and there but product works great after a couple of weeks. Be patient, it works. In fact I just gave a half a bottle to a friend and he’s noticing a difference also and he’s 62.

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