At-Home NAD+ Injections: Remedy Place Smart Pen, NADclinic Review & What the Science Actually Says

At-home NAD+ injections just went mainstream — and if you work in finance, you’ve probably already seen them in your LinkedIn feed. In March 2026, Remedy Place, the upscale NYC wellness club with locations in SoHo, Flatiron, and West Hollywood, launched a partnership with UK-based NADclinic to sell injectable NAD+ Smart Pens directly to consumers. For $499 per pen, you get 1,000mg of pharmaceutical-grade NAD+ that ships worldwide in 48 hours and injects in seconds at home. Jonathan Leary, DC, Remedy Place’s founder, is calling it a “game changer.” But is it? We’ve dug into the science, the company background, and the practical numbers so you can decide for yourself.

Before we go further, if you’re new to NAD+ as a concept, start with our guide to mitochondrial health and NAD+ — it covers the foundational biology that underpins everything in this post. This piece picks up where that one leaves off, focusing specifically on the new at-home injectable delivery method and whether it changes the calculus for busy finance professionals.

What Is the Remedy Place NAD+ Smart Pen?

The NAD+ Smart Pen is a subcutaneous injector developed by NADclinic (marketed as the “NADSQx”) and now being sold in the US exclusively through Remedy Place. Here’s the key product detail breakdown:

• Dose per pen: 1,000mg pharmaceutical-grade NAD+ in a 3ml cartridge
• Price: $499 per pen
• Recommended dosing: 50–125mg per injection, starting at 50mg 3x/week, working up to 100mg
• Shipping: Worldwide delivery within 48 hours, refrigerated
• At 50mg per dose: That’s roughly 20 doses per pen — about 6–7 weeks of 3x/week dosing at the starter dose

The core selling point isn’t just at-home convenience — it’s the dosing philosophy. Rather than a 4-hour IV infusion of several hundred milligrams (which notoriously causes nausea, cramping, and chest pressure), the pen delivers small, frequent subcutaneous doses. According to Yahoo Health’s coverage of the launch, Remedy Place argues that this method produces steadier NAD+ levels with far fewer side effects. From a practical standpoint for a banker commuting into Midtown five days a week, that pitch is genuinely compelling.

Who Is NADclinic? A Closer Look at the Company Behind the Pen

NADclinic is a UK-based company with a physical clinic in Marylebone, London, led by CEO Iain De Havilland. They’ve been in the NAD+ space for years, and their injectable product does come with a Certificate of Analysis from an NHS/UKAS-accredited laboratory — a meaningful quality signal suggesting pharmaceutical-grade standards.

However, due diligence requires noting some background context. In February 2025, The Observer (the Sunday Guardian) published an investigative piece that included NADclinic among seven UK clinics facing MHRA action. The issue was specific: clinics were marketing NAD+ IV infusions as a treatment for alcohol addiction and detox, citing a “90% success rate” and billing it as an “affordable alternative to rehab” — claims the MHRA deemed unproven medicinal claims in a regulated context.

After The Guardian made contact, NADclinic edited its UK-facing webpages and stated that its detox services were now operating only from South Africa. The company’s response to the inquiry was that the UK web content was outdated.

Important nuance: The Remedy Place partnership is explicitly for wellness and longevity use — not addiction treatment. These are distinct contexts. But as an analytical finance professional, you should know who you’re buying from, what their regulatory history looks like, and what questions to ask. The product quality credentials appear real. The company’s past navigation of regulatory boundaries is a fact worth weighing.

At-Home NAD+ Injections vs. Oral Precursors: What the Science Actually Says

This is the section that matters most. At-home NAD+ injections might be the flashiest option right now, but the scientific evidence tells a more nuanced story.

The Case FOR Injectable NAD+

Proponents of injectable NAD+ point to bioavailability as the key advantage. Oral supplements must survive digestion, liver metabolism, and intestinal absorption — injectable NAD+ bypasses all of that. Claimed bioavailability for intravenous or subcutaneous NAD+ often runs at 70–80%, compared to 10–20% commonly cited for oral capsules (though these figures come largely from industry sources rather than peer-reviewed head-to-head trials).

Dr. Amanda Kahn, a board-certified internist who advises on longevity protocols, has described NAD+ injections as giving patients “back a molecule that you had when you were younger” — more quickly and reliably than oral supplementation. And Remedy Place’s small-dose subcutaneous approach is specifically designed to avoid the IV experience’s worst side effects.

The Case AGAINST — and Why Biochemistry Gets Complicated

Here is where things get genuinely interesting, and where we believe the evidence currently points more strongly. Dr. Eric Verdin, President and CEO of the Buck Institute for Research on Aging and one of the world’s foremost NAD+ researchers, has stated clearly that NAD+ is too large a molecule to enter cells directly when injected. It gets broken down into nicotinamide in the bloodstream — meaning your body may not be getting whole NAD+ at the cellular level at all.

Dr. Michael Sagner, a clinical adviser at King’s College London, put it even more bluntly in published commentary: injecting NAD+ directly is “completely idiotic from a biochemistry point of view,” because oral precursors like NMN and NR convert to NAD+ inside cells, exactly where the molecule is needed. The logic is compelling: why inject a molecule that gets broken apart in the bloodstream when you can deliver the building blocks that cells convert locally?

This is backed up by the research record. A landmark study published in Nature Communications demonstrated that oral NR supplementation increased blood NAD+ levels by 22–142% in healthy adults — a statistically robust finding from a well-designed trial. The PMC NMN safety and efficacy trial similarly confirmed that oral NMN administration is both safe and effective at raising NAD+ levels in humans. These are randomized controlled trials — the gold standard of evidence. Injectable NAD+ in wellness contexts lacks equivalent RCT data; most evidence comes from observational reports and clinic case studies.

One additional note on the research landscape: a prominent NAD+ rat study was retracted by PLOS One in November 2024 over data integrity concerns (images appeared to have been manipulated). The lead researcher resigned from UNSW. We mention this not to undermine the field — NAD+ biology is solid science — but because it illustrates that even published NAD+ research requires critical appraisal.

For a detailed comparison of injection versus oral delivery methods, Jinfiniti’s clinical comparison offers a useful synthesis of the current evidence.

The Practical Decision Framework for Finance Professionals

Let’s cut to what you actually need to know to make a decision. We’ll frame it the way an analyst would — evidence first, then cost-benefit, then risk.

The Budget Reality Check

At $499 for 1,000mg and a recommended starting dose of 50mg three times per week:

• 20 doses per pen at 50mg = roughly 6–7 weeks of treatment at starter dose
• At 100mg per dose = 10 doses = about 3 weeks at the higher protocol
• Annualized cost: approximately $3,500–$8,700 per year at minimum effective dosing
• High-quality oral NMN or NR: $30–$80/month, or $360–$960 per year

That’s a 4–10x cost premium for a delivery method with less peer-reviewed RCT evidence behind it. For most finance professionals, even those earning well into six or seven figures, that’s a cost-benefit mismatch worth pausing on.

Who Should Consider Injectable NAD+?

There are legitimate situations where injectable NAD+ may make sense — but they’re narrower than the marketing suggests:

• Documented malabsorption issues: If your gut genuinely can’t absorb oral supplements (IBD, certain post-surgical states), injectable delivery has a clearer rationale
• Physician-supervised protocols: Under a doctor who can monitor your baseline NAD+ levels and track cellular response — not just a wellness club
• Acute recovery scenarios: Some functional medicine practitioners use higher-dose IV NAD+ post-surgery or for specific neurological protocols — a different clinical context from wellness maintenance

The Evidence-Based Starting Point for Most People

In our experience reviewing the research and protocols used by high-performing professionals, the smart starting point is oral NMN or NR — proven safe, proven effective at raising intracellular NAD+, and dramatically more affordable. If you’re incorporating intermittent fasting and Zone 2 exercise into your routine (both well-evidenced NAD+ boosters), your body’s natural NAD+ production is already being supported. Stack that with 250–500mg of oral NMN or NR daily and you have a research-backed protocol. Add red light therapy for additional mitochondrial support if you want to optimize further.

If you want to explore injectables, work with an integrative physician who will test your baseline whole-blood NAD+ levels first. Guessing at a $500/pen protocol without knowing your current levels is the kind of decision-making that wouldn’t fly on a trading desk — and it shouldn’t fly in your health portfolio either.

Side Effects and Safety: What to Know Before Injecting at Home

The pen’s small-dose subcutaneous approach does meaningfully reduce the side effect profile compared to IV infusions. Here’s what you should know:

• IV NAD+ side effects (less relevant for the pen): nausea, cramping, chest pressure — all well-documented at large IV doses and mostly driven by rapid systemic delivery
• Subcutaneous injection at 50–125mg: Generally better tolerated; the pen’s design philosophy is specifically built around this
• Injection site reactions: Local redness, swelling, and bruising are possible with any subcutaneous injection
• Infection risk: Self-injection requires sterile technique — this is not trivial, and lapses can cause serious local infections
• Allergic reactions: Rare but possible
• Long-term safety data: Simply doesn’t exist for regular subcutaneous NAD+ use — we’re early in the adoption curve

As with any self-administered injectable, we strongly recommend discussing with a physician before starting, particularly if you have any cardiovascular history. Managing stress management and sleep are the unglamorous foundations — injectables are a layer on top, not a substitute for them.

The Bigger Picture: At-Home NAD+ Injections in Context

Step back from the marketing for a moment. The science of NAD+ is legitimate — it declines with age, it’s central to cellular energy metabolism, DNA repair, and mitochondrial function. The debate isn’t about whether NAD+ matters. It’s about delivery method.

And on delivery method, the evidence currently favors oral precursors for the vast majority of healthy adults. The pen is interesting technology and may represent a future where evidence catches up to the innovation. But right now, paying a 4–10x premium for a method that leading researchers actively question is a speculative bet, not an evidence-based strategy.

The lifestyle foundations remain non-negotiable: Zone 2 cardio (which directly induces NAMPT, the enzyme that drives NAD+ synthesis), intermittent fasting, and quality sleep all support your NAD+ system at zero additional cost. Test your baseline levels if you want data — Jinfiniti and a handful of functional medicine labs now offer whole-blood NAD+ testing. Then decide where to spend your optimization budget.

Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before beginning any injectable protocol or new supplement regimen.

Our Verdict on At-Home NAD+ Injections

At-home NAD+ injections from Remedy Place and NADclinic are genuinely novel — and the convenience argument for busy finance professionals is real. But “novel” and “evidence-based” aren’t the same thing. The current scientific consensus, from researchers at the Buck Institute and King’s College London, suggests oral precursors (NMN and NR) are likely more effective at raising intracellular NAD+ than direct injections of the molecule — at a fraction of the cost.

Our recommendation: build your NAD+ protocol on the proven foundation first. Optimize sleep, exercise, and fasting. Add oral NMN or NR. Get your levels tested. And if you still want to explore injectables after that? Do it with a physician who knows your numbers — not just because a wellness club has a slick product launch.

We’ll be tracking the clinical evidence as it develops. Follow Healthy Bankers and subscribe to our newsletter to get notified when we publish our next update on this rapidly evolving space.