Frequently Asked Questions

Nitric Oxide is a signaling molecule produced in the body that helps:

• Relax and dilate blood vessels
• Regulate blood pressure
• Improve circulation
• Deliver oxygen and nutrients to tissues
• Support mitochondrial energy production
• Maintain endothelial function

Nitric Oxide production naturally declines with age.

Nitric Oxide declines due to:

• Reduced endothelial nitric oxide synthase (eNOS) activity
• Oxidative stress
• Chronic inflammation
• Insulin resistance
• Hormonal changes
• Poor oral microbiome health

By age 40–50, Nitric Oxide production may be significantly reduced compared to early adulthood.

Many Nitric Oxide supplements use L-arginine or L-citrulline.

Berkeley Life uses dietary nitrates, which:

• Bypass age-related decline in the arginine pathway
• Work independently of eNOS
• Have strong clinical validation
• Provide more consistent nitric oxide production

Our formulas are clinically studied and practitioner-trusted.

Yes. Berkeley Life has conducted double-blind, placebo-controlled clinical research evaluating dietary nitrate supplementation and nitric oxide levels.

Results demonstrated:

• Increased salivary nitrite
• Increased plasma nitrite
• Improved nitric oxide bioavailability

Additional research continues in specific populations.

Yes.

Every batch undergoes:

• Potency verification
• Heavy metal testing
• Microbiological screening
• Certificate of Analysis (CoA) review

Manufacturing follows cGMP (21 CFR Part 111) standards in the United States.

Our supplements are manufactured in the United States in FDA-registered, GMP-certified facilities.

Nitric Oxide Test Strips are manufactured in Europe.

No.

Berkeley Life formulas are non-hormonal and do not contain estrogen, progesterone, or testosterone.

Yes. Our products are non-GMO.

Because nitric oxide supports vasodilation, individuals taking:

• Blood pressure medications
• Anticoagulants
• PDE5 inhibitors
• Organic nitrates
• SSRIs (for pollen-containing products)

should consult their healthcare provider before use.

Yes. The oxalate content is extremely low - less than a single spinach leaf. Even individuals with sensitivities generally tolerate it well.

Berkeley Life uses food-grade potassium nitrate. It is chemically identical to the nitrate naturally found in leafy green vegetables.

It is not the same as industrial-grade nitrates used in fertilizers or explosives.

Many users report improvements in:

• Circulation
• Energy
• Test strip readings

within 1–2 weeks.

Clinical vascular improvements are typically measured at 8–12 weeks.

Results vary by individual.

Nitric Oxide is a natural signaling molecule essential for vascular health.

In conditions of extreme oxidative stress, reactive nitrogen species may form. Maintaining a healthy diet and lifestyle helps support balanced nitric oxide activity.

Dietary nitrates from vegetables and Berkeley Life formulas are considered safe for daily use in healthy adults.

The strips measure salivary nitrite using the Griess reaction.

Salivary nitrite is a validated indicator of nitric oxide pathway activity.

They provide a simple, at-home way to track nitric oxide levels in 15 seconds.

Low readings may be related to:

• Use of antibacterial mouthwash
• Recent antibiotic use
• Oral microbiome imbalance
• High oxidative stress
• Genetic factors

Consistent daily supplementation may help improve readings over time.

Yes.

Nitric Oxide production naturally declines with age. Many individuals choose long-term use as part of their healthy aging routine.

Consult your healthcare provider for personalized guidance.

U.S. orders typically arrive within:

6 business days from submission

• Orders placed before 3pm PST are processed same day
• Fulfillment within 24 hours
• Shipping time: approximately 5 business days

Yes.

Capsules may be ordered in 90-day increments per Health Canada regulations.

• Shipping cost: $16.95
• Delivery: 7–10 business days (may vary)

Berkeley Life complies with state tax regulations, including Michigan sales and use tax laws.

Internet supplement purchases may be taxed differently than in-store purchases depending on state regulations.

Subscribers receive:

• Automatic recurring shipments
• Priority processing
• Easy account management

Subscriptions can be managed or canceled anytime through your account dashboard.

Yes.

You may remove up to a week’s worth for pill organizers. Mild discoloration may occur but does not affect potency.