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★★★★★

“I did the test strip and my NO level was very low. Then I took 2 caps of Nitric Oxide Foundation that came in the sample pack, waited 90 minutes. After 90 minutes I retested and my NO level was on the high end. I did not expect that. Genius way of showing the effectiveness of the supplement. I am very impressed.”

— Peter S. ✓ Verified
Nitric Oxide Support
Starter Kit
★★★★★ 4.7 · 297 Reviews | Trusted by 3,000+ Healthcare Providers

The only NO supplement you can actually measure. Clinically proven to support blood flow, energy, and vitality — with test strips so you see it working in 90 minutes.

Clinically Proven HSA/FSA Eligible Doctor Recommended
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FREE 4ct Test Strips included
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Clinicians' Choice

307 clinicians share this on FrontrowMD without compensation. Learn more

⚡
300%+
More Energy
After 3 Months
❤️
75%
Increased
Libido
💫
10%
Blood Pressure
Reduction
✓
90 min
See It
Working

How to Use

Simple Daily Routine

Supplement: Take 2 capsules daily with water. Best taken in the morning.

Test Strips (included free): Place the saliva test strip on your tongue for 15 seconds. Compare the color change to the included chart to measure your Nitric Oxide levels. Test before your first dose, then again 90 minutes after taking to see results. Retest periodically to track your progress.

✓ Trusted by 3,000+ Healthcare Providers ✓ Clinically Studied ✓ Made in USA
Active lifestyle
SIGNS OF LOW NO LEVELS
+Low energy & fatigue
+ED & low drive
+Slow gym recovery
+Hormone imbalance
+Poor circulation
+High blood pressure
+Brain fog
+Weak blood flow
THE PROBLEM

Nitric Oxide Is Your Body's Miracle Molecule. And It's Disappearing.

Starting at 30, men lose 10-12% of their Nitric Oxide production every decade. NO is the signaling molecule that controls blood vessel dilation, oxygen delivery, hormone communication, and sexual function. When it drops, everything follows.

~50%

Decline in NO production between ages 40 and 70 — the primary driver of cardiovascular and performance issues in aging men.

Validated by Clinical Research

The Proven Benefits
of Nitric Oxide

Backed by Berkeley Life Clinical Results

300%+ Increase in Energy →
28% Boost in Blood Flow →
10% Blood Pressure Reduction →
75% Increase in Libido →
83% Enhanced Sensation →
Benefit
Over 300% increase in capacity to produce energy after 3 months among clinical trial subjects.
Berkeley Life Supplement

The Leaders In Nitric Oxide

Backed by extensive clinical research and rigorous testing, our products are among the most clinically tested Nitric Oxide supplements available. We're dedicated to advancing the science of Nitric Oxide and its transformative benefits for heart health, energy, and overall wellness. With a commitment to transparency, efficacy, and innovation, Berkeley Life stands as a leader in delivering science-backed solutions to support your health journey.

Start Your NO Journey
How to take Nitric Oxide Support

Have Questions?

We've Got Answers.

We know trying a new supplement can raise doubts. Here are the six things new customers ask us most.

Nitric oxide (NO) is a signaling molecule your body produces that tells your blood vessels when to relax and widen. That one function controls a huge chunk of how you feel day-to-day: energy, circulation, blood pressure, recovery, brain clarity, and sexual response. The problem is that NO production drops 10 to 12% per decade after age 30 for both men and women. By 70, you're making about half of what you did at 40. The good news is you can see exactly where your levels are right now using the saliva test strips included free with your order, then watch them improve as you take Berkeley Life.

You can, and we recommend you do. But matching one Berkeley Life serving from food alone means roughly 7 oz of beetroot or 3 to 4 cups of arugula every day, consistently. Most people don't sustain that. Berkeley Life delivers a standardized nitrate dose plus the cofactors (Vitamin C, magnesium) your body needs to actually convert nitrates into NO. And unlike food, your included test strips let you confirm the dose is working within 90 minutes.

NO levels rise within 90 minutes of your first dose. Place a saliva strip on your tongue for 15 seconds before your first capsule, then test again 90 minutes later. You'll see the color change on the chart. Most customers notice subjective changes in energy, blood flow, and libido within 2 to 4 weeks. The headline clinical results (300%+ energy increase and 10% blood pressure reduction) were measured at the 3-month mark in the Harbor UCLA trial. Consistency matters more than dose.

Yes, and this is one of the most overlooked factors in NO supplementation. Specific bacteria in your mouth convert dietary nitrates into nitrite, the precursor your body uses to make NO. Antibacterial mouthwash (Listerine and similar) can reduce NO production by up to 90%. Skip antibacterial mouthwash, or switch to a non-antibacterial rinse. If you're not sure whether your routine is affecting your results, the test strips will tell you.

Berkeley Life is manufactured in the USA in an FDA-registered, GMP-certified facility. Vegan, gluten-free, with no known contraindications. Two side effects worth knowing: pink or red urine ("beeturia") is harmless and just means your body absorbed the beet pigment, and some people feel mild headache or flushing the first few days as blood vessels relax. Because Berkeley Life supports the same pathway as blood pressure and ED medications, check with your healthcare provider first if you're on either.

Pause, skip, or cancel anytime, no commitment required. Every order is also backed by our 30-day money-back guarantee. If your test strips don't show improvement after consistent use, email help@berkeleylife.com and our team will work through it with you. If we can't get your levels moving, you get your money back.

Still Have Questions?

We're a small team and we read every message. If something here didn't answer what you wanted to know, reach out before you order. We'd rather have a 5-minute conversation than have you guess.

Email: help@berkeleylife.com

Call: 844-517-1327 (Mon–Fri, 9am–5pm ET)

Ready to Start Your NO Journey?

Clinically studied. Trusted by 3,000+ healthcare providers. Results you can test at home.

YES, LET'S DO IT.

What Our Customers Are Saying

4.7 stars from 1,247+ verified reviews

★★★★★

My blood pressure has improved noticeably since starting Berkeley Life. My doctor is impressed with my numbers.

ROBERT M
VERIFIED BUYER
★★★★★

The test strips are a game changer. I can actually see my NO levels improving week over week.

PATRICIA
VERIFIED BUYER
★★★★★

My cardiologist recommended this. After 3 months, my circulation has dramatically improved.

JAMES K
VERIFIED BUYER
★★★★★

More energy throughout the day without any jitters. This is the real deal, backed by real science.

SUSAN
VERIFIED BUYER
★★★★★

I love that I can test my levels at home. The strips show clear improvement after just 2 weeks.

MICHAEL T
VERIFIED BUYER
★★★★★

HSA/FSA eligible was the deciding factor. Quality supplement that my health plan covers.

LINDA
VERIFIED BUYER
★★★★★

Been taking this for 6 months. My energy is up, my workouts are better, and my doctor is happy.

DAVID R
VERIFIED BUYER
★★★★★

The subscription is so convenient. Fresh supply every month, never have to think about reordering.

KAREN
VERIFIED BUYER
★★★★★

Trusted by thousands of healthcare providers. That's what convinced me to try it, and I'm glad I did.

THOMAS
VERIFIED BUYER
★★★★★

At 55, I was worried about my cardiovascular health. This supplement has given me peace of mind.

BARBARA
VERIFIED BUYER
★★★★★

Clean ingredients, clinical backing, and real results. Berkeley Life is the gold standard for NO support.

RICHARD
VERIFIED BUYER
★★★★★

My husband and I both take it daily. We have both seen improvements in energy and overall wellness.

JENNIFER
VERIFIED BUYER
★★★★★

My blood pressure has improved noticeably since starting Berkeley Life. My doctor is impressed with my numbers.

ROBERT M
VERIFIED BUYER
★★★★★

The test strips are a game changer. I can actually see my NO levels improving week over week.

PATRICIA
VERIFIED BUYER
★★★★★

My cardiologist recommended this. After 3 months, my circulation has dramatically improved.

JAMES K
VERIFIED BUYER
★★★★★

More energy throughout the day without any jitters. This is the real deal, backed by real science.

SUSAN
VERIFIED BUYER
★★★★★

I love that I can test my levels at home. The strips show clear improvement after just 2 weeks.

MICHAEL T
VERIFIED BUYER
★★★★★

HSA/FSA eligible was the deciding factor. Quality supplement that my health plan covers.

LINDA
VERIFIED BUYER
★★★★★

Been taking this for 6 months. My energy is up, my workouts are better, and my doctor is happy.

DAVID R
VERIFIED BUYER
★★★★★

The subscription is so convenient. Fresh supply every month, never have to think about reordering.

KAREN
VERIFIED BUYER
★★★★★

Trusted by thousands of healthcare providers. That's what convinced me to try it, and I'm glad I did.

THOMAS
VERIFIED BUYER
★★★★★

At 55, I was worried about my cardiovascular health. This supplement has given me peace of mind.

BARBARA
VERIFIED BUYER
★★★★★

Clean ingredients, clinical backing, and real results. Berkeley Life is the gold standard for NO support.

RICHARD
VERIFIED BUYER
★★★★★

My husband and I both take it daily. We have both seen improvements in energy and overall wellness.

JENNIFER
VERIFIED BUYER
★★★★★

I was skeptical about NO supplements until I tried Berkeley Life. The science is solid and the results speak for themselves.

WILLIAM
VERIFIED BUYER
★★★★★

My naturopath put me on this. Three months later, my NO levels are in the target range for the first time.

ELIZABETH
VERIFIED BUYER
★★★★★

Love the transparency. Full ingredient list, no proprietary blends, and real clinical studies behind it.

CHARLES
VERIFIED BUYER
★★★★★

The Starter Kit with test strips was perfect. I could see exactly where my levels were before and after.

MARY
VERIFIED BUYER
★★★★★

Recovery after workouts has improved dramatically. My muscles feel less fatigued the next day.

JOSEPH
VERIFIED BUYER
★★★★★

Finally a supplement I can trust. GMP certified, NSF registered, and recommended by my doctor.

MARGARET
VERIFIED BUYER
★★★★★

At 62, this has been transformative for my daily energy levels. I feel 10 years younger.

GEORGE
VERIFIED BUYER
★★★★★

The beet root formula is so much easier than eating pounds of vegetables to get the same nitrate levels.

DOROTHY
VERIFIED BUYER
★★★★★

Excellent product. I have been recommending Berkeley Life to everyone in my cycling group.

FRANK
VERIFIED BUYER
★★★★★

The 30-day satisfaction guarantee made it risk-free to try. Did not need it, the product works great.

HELEN
VERIFIED BUYER
★★★★★

My wife got me started on this. Now we are both subscribers. Best health investment we have made.

PAUL
VERIFIED BUYER
★★★★★

Clinician recommended, clinically studied, and it actually works. What more could you ask for?

NANCY
VERIFIED BUYER
★★★★★

I was skeptical about NO supplements until I tried Berkeley Life. The science is solid and the results speak for themselves.

WILLIAM
VERIFIED BUYER
★★★★★

My naturopath put me on this. Three months later, my NO levels are in the target range for the first time.

ELIZABETH
VERIFIED BUYER
★★★★★

Love the transparency. Full ingredient list, no proprietary blends, and real clinical studies behind it.

CHARLES
VERIFIED BUYER
★★★★★

The Starter Kit with test strips was perfect. I could see exactly where my levels were before and after.

MARY
VERIFIED BUYER
★★★★★

Recovery after workouts has improved dramatically. My muscles feel less fatigued the next day.

JOSEPH
VERIFIED BUYER
★★★★★

Finally a supplement I can trust. GMP certified, NSF registered, and recommended by my doctor.

MARGARET
VERIFIED BUYER
★★★★★

At 62, this has been transformative for my daily energy levels. I feel 10 years younger.

GEORGE
VERIFIED BUYER
★★★★★

The beet root formula is so much easier than eating pounds of vegetables to get the same nitrate levels.

DOROTHY
VERIFIED BUYER
★★★★★

Excellent product. I have been recommending Berkeley Life to everyone in my cycling group.

FRANK
VERIFIED BUYER
★★★★★

The 30-day satisfaction guarantee made it risk-free to try. Did not need it, the product works great.

HELEN
VERIFIED BUYER
★★★★★

My wife got me started on this. Now we are both subscribers. Best health investment we have made.

PAUL
VERIFIED BUYER
★★★★★

Clinician recommended, clinically studied, and it actually works. What more could you ask for?

NANCY
VERIFIED BUYER
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