NAD⁺ made for your eyes.

You already fuel your heart, your gut, your skin. Sight Guard is the daily NAD⁺ formula built for the retina, one of the most metabolically active tissues in the body.

  • Five evidence-informed ingredients at full doses. No proprietary blends.
  • Formulated by a board-certified ophthalmologist.
  • Third-party tested and made in the USA.
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NAD⁺ made for your eyes.
Sight Guard
The flagship

Sight Guard

A once-daily capsule that fuels the cellular energy your retina and optic nerve depend on.* Five evidence-informed ingredients, formulated by a board-certified ophthalmologist.

From $47.40 with your first subscription order · free US shipping
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The difference

Most eye supplements protect. Sight Guard fuels.

Conventional formulas address antioxidant protection. Sight Guard addresses cellular energy production, the upstream mechanism most competitors have never targeted.

Read the research
Dr. Craig Fishman in medical scrubs sitting on a chair
The founder

Formulated by the physician who takes it himself

I formulated Sight Guard for patients who were doing everything right and still asked what else they could do. These five ingredients are my best clinical judgment for supporting cellular eye health, and I take it myself every morning.

Craig Fishman, MD · Board-Certified Ophthalmologist · Founder & Medical Advisor, NADefense

Our story
★★★★★

4.7 · 30 reviews

What customers are saying.

  • ★★★★★
    "I'm very happy with Sight Guard. I'm 92 I see great"

    Robert G. Verified buyer

  • ★★★★★
    "I'm very happy with Sight Guard. It helps me feel proactive about my eyes"

    Mack F. Verified buyer

  • ★★★★★
    "Easy to incorporate into a daily supplement regiment. Customer service was fantastic!"

    Nolan Verified buyer

  • ★★★★★
    "Switched to subscription after my first bottle because shipping was consistent."

    Carry F. Verified buyer

30Day money-back guarantee

Not satisfied for any reason? Full refund on your first order.

No risk to try

A supplement you can commit to with confidence.

  • Cancel anytime

    No lock-in, no fees, no hoops.

  • Ships automatically

    Arrives before you run out.

  • Free US shipping

    Every order ships free.

The Guard line

One mechanism. A line of defense.

  • Sight Guard

    Flagship · Available

    Advanced ocular cellular support. An NAD⁺ precursor formula that supports your vision as you age.*

    First bottle $47.40, then $63.20 every 2 months. Cancel anytime.Shop →

  • Tear Guard

    Coming soon

    Dry eye and ocular surface support. Cellular hydration from within.

  • Macu Guard

    Coming soon

    Advanced macular defense. NAD⁺ precursor and carotenoid formula.

From the journal

Eye health, explained clearly.

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Support

Questions, answered.

What is Sight Guard?

Sight Guard is a once-daily dietary supplement formulated by a board-certified ophthalmologist. It provides five evidence-informed ingredients that support the cellular energy your retina and optic nerve rely on.

What is in it?

Nicotinamide Riboside 300 mg, Calcium Pyruvate 400 mg, Coenzyme Q10 100 mg, Ginkgo Biloba 60 mg, and Lutein 10 mg. Full doses, disclosed on the label, with no proprietary blends.

How do I take it?

One capsule daily, with food. CoQ10 and lutein are fat-soluble, so a meal improves absorption. Give it at least three months of consistent daily use.

Is it safe to take with my medications?

Talk to your physician before starting any supplement, especially if you take prescription medication. Sight Guard contains Ginkgo Biloba, which can interact with blood thinners and antiplatelet medicines and may increase bleeding risk. If you take one of these, or have surgery scheduled, speak with your doctor before use.

When will I notice a difference?

Cellular support works by daily accumulation. Give it at least three months of consistent use. Individual experiences vary.

Can I cancel my subscription?

Yes. You can skip, pause, or cancel anytime from your account, with no fees.

Do you offer a guarantee?

Yes. We offer a 30-day money-back guarantee on your first order.

Still reading the fine print. Still driving after dark. Still seeing every face clearly across the table. That is the kind of long-term vision wellness Sight Guard is formulated to support.

  • Free US shipping
  • Cancel anytime
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