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Compare NAD+ & Advanced Wellness Providers

We compared telehealth providers offering NAD+ and related wellness therapies on clinician oversight, pricing transparency, and how honestly they describe the science—so you can have a more informed conversation with a licensed provider.

Last Updated: Jun 2026


How we compare advanced-wellness providers

"Advanced wellness" and "longevity" telehealth has grown quickly, and the marketing often runs well ahead of the science. Most therapies in this category—NAD+ and its precursors, metformin used off-label, low-dose naltrexone, rapamycin, and various peptides—are either experimental, prescribed off-label, or sold as supplements without FDA review for anti-aging use. None has been shown in large human trials to slow aging or extend lifespan. We built this comparison to help you evaluate providers with that reality in mind, not to promise outcomes the evidence cannot support.

Rather than rank providers on hype, we look at what actually protects you: whether a licensed clinician reviews your history and labs, how clearly the company distinguishes FDA-approved uses from off-label or investigational ones, whether pricing is transparent before you commit, and whether marketing language stays honest about what is still preliminary. Use the comparison below as a starting point for a conversation with a qualified clinician—not as medical advice.


What's on this page?

  1. Compared advanced-wellness providers (above)
  2. What "advanced wellness" actually covers
  3. What the evidence does and doesn't show
  4. Common therapies in this category
  5. Why clinician oversight matters
  6. How treatment is typically delivered
  7. Setting realistic expectations
  8. How online consultations work
  9. Is this approach right for you?

What "advanced wellness" actually covers

"Advanced wellness" is a marketing umbrella rather than a defined medical specialty. In practice it covers therapies that some clinicians and companies promote for healthy aging, energy, and metabolic health—most commonly NAD+ and its precursors (such as NMN), the diabetes drug metformin used off-label, low-dose naltrexone, the immunosuppressant rapamycin used off-label, and assorted peptides.

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell that is involved in energy metabolism and DNA repair, and laboratory data suggest its levels fall with age. That biology is real, but it does not by itself prove that taking NAD+ or its precursors reverses aging or restores youthful function in people. Human trials of NMN are mostly small and short, and while they show supplementation can raise NAD+ markers and is generally well tolerated, researchers consistently say larger studies are needed before clinical benefits can be confirmed.1,2


What the evidence does and doesn't show

It helps to separate the underlying biology from claims about results. The mechanisms behind these therapies are studied seriously, but evidence in humans is mostly early-stage:

  • Plausible mechanisms: NAD+ metabolism, mTOR signaling (the target of rapamycin), and metabolic pathways are genuine areas of aging research, with consistent results in cell and animal models
  • Limited human data: most human trials are small, short, and focused on safety or biomarkers rather than proving people age more slowly or live longer
  • No proven anti-aging outcome: as of 2026, no therapy in this category is FDA-approved to slow aging or extend lifespan, and major trials such as TAME (metformin) are still in progress3

Be cautious with any provider that presents these therapies as proven longevity solutions. The honest framing is that they are investigational or off-label tools that a clinician may consider in context—not guaranteed results.


Common therapies in this category

NAD+ and NMN

Offered as injections, IV infusions, or oral supplements. NMN is sold as a dietary supplement in the U.S. and is not FDA-approved as a drug. Small human trials show it can raise NAD+ markers and is generally well tolerated, but clinical benefits remain unproven.1,2

Metformin (off-label)

FDA-approved for type 2 diabetes only. Some clinicians prescribe it off-label for longevity based on observational data and animal studies, but the dedicated TAME trial has not yet reported results.3

Low-dose naltrexone (off-label)

Naltrexone is FDA-approved at 50 mg for alcohol and opioid use disorders. Low doses (around 4.5 mg) are compounded and used off-label; reviews find current evidence does not support routine use.4

Rapamycin and peptides

Rapamycin is FDA-approved as an immunosuppressant; its use for aging is off-label and unproven in humans, and it carries real risks such as immune suppression. Many "research" peptides are not FDA-approved for human use and sit outside the legal compounding framework.5


Why clinician oversight matters

Because so much of this category is off-label, investigational, or unregulated, the involvement of a licensed clinician is one of the most important things to look for. Good oversight typically means:

  • A real review of your medical history, current medications, and relevant lab work before anything is prescribed
  • A clear explanation of which uses are FDA-approved versus off-label or experimental
  • Honest discussion of potential risks, drug interactions, and the limits of the evidence
  • Ongoing follow-up and monitoring rather than an open-ended, unsupervised subscription

What to ask: foundational habits—sleep, nutrition, exercise, and managing existing conditions—have far stronger evidence for healthy aging than any of these therapies. Ask any provider how a proposed treatment fits alongside those basics, and what evidence supports it for you specifically.


How treatment is typically delivered

Delivery depends on the specific therapy and the provider's protocol, and any schedule or dosing should come from your own clinician rather than a website. In general:

  • Oral options: NMN and other precursors are usually taken as daily capsules; metformin and low-dose naltrexone are oral prescriptions
  • Injectable or IV options: NAD+ is sometimes given by subcutaneous injection or IV infusion in a clinic or via at-home kits with instructions
  • Compounded products: low-dose naltrexone and some peptides are prepared by compounding pharmacies, which adds variability in quality and is only appropriate under prescription

If a therapy is injected, following professional technique and rotating sites helps reduce irritation. More importantly, do not start, stop, or adjust any of these treatments on your own—several interact with other medications and conditions.


Setting realistic expectations

Many people who try these therapies report subjective changes in energy or wellbeing, but reported experiences are not the same as proven effects, and placebo responses are common with wellness products. Controlled human evidence for meaningful anti-aging outcomes is currently lacking across this category.

A reasonable expectation is uncertainty: a clinician may consider one of these options as part of a broader plan, but no one can honestly promise you will age more slowly, feel dramatically different, or live longer. Treat bold guarantees as a red flag, and prioritize the lifestyle factors with the strongest evidence.


How online consultations work

Most providers in this space operate via telehealth: you complete an intake, may be asked to do lab testing, and have a virtual visit with a licensed clinician who decides whether a prescription is appropriate. If approved, oral or injectable products are shipped to your home. Convenience is real, but it also makes it easier to be prescribed something with limited oversight—so look for genuine clinician review, transparent pricing, and easy cancellation, and be wary of any service that prescribes with little more than a questionnaire.


Is this approach right for you?

If you're curious about advanced-wellness therapies, the most useful step is an honest conversation with a clinician who knows your history—ideally before signing up for a subscription. Persistent fatigue, brain fog, or slower recovery can also signal treatable medical conditions, so those symptoms deserve a proper evaluation rather than a self-directed longevity protocol. A qualified provider can tell you whether any of these options make sense for you and what the evidence actually supports.

This page is for general education only and is not medical advice. Always consult a licensed healthcare professional before starting, stopping, or changing any treatment.


Compare providers

Browse our provider reviews and explainer articles to understand your options, then take what you learn to a licensed clinician who can advise you for your situation.


Sources used for medical context

  1. National Institutes of Health (NIH) for findings from a small NMN trial and the need for more research.
  2. Review of NMN human clinical trials (PMC/NCBI) for the state of NAD+/NMN evidence in humans.
  3. American Federation for Aging Research (TAME trial) for metformin's FDA-approved use and the in-progress aging trial.
  4. Low-Dose Naltrexone narrative review (PubMed) for the off-label status and limited evidence of LDN.
  5. Aging journal review of off-label rapamycin for the unproven, experimental status of rapamycin in healthy adults.

How We Rank

Learn more about how comparetreatments.com rankings are determined.

Frequently Asked Questions (FAQ)

NAD+ (nicotinamide adenine dinucleotide) is a coenzyme involved in energy metabolism and DNA repair, and lab evidence suggests its levels decline with age. Products like NMN can raise NAD+ markers in small human studies, but no NAD+ therapy is proven to slow aging or extend lifespan in people, and NMN is sold as a supplement rather than an FDA-approved drug. Researchers consistently say larger trials are needed before clinical benefits can be confirmed.
None of the popular advanced-wellness therapies is FDA-approved for anti-aging or longevity. Metformin is approved only for type 2 diabetes, naltrexone is approved at 50 mg for alcohol and opioid use disorders, and rapamycin is approved as an immunosuppressant—their use for aging is off-label. NMN and similar precursors are marketed as dietary supplements, and many peptides are not approved for human use at all. Off-label prescribing can be legal and appropriate under a clinician's judgment, but it is not the same as proven, approved treatment.
Safety varies by therapy. In short trials, NMN and IV/injectable NAD+ are usually well tolerated, with side effects such as flushing, nausea, or injection-site irritation. Other options carry more significant risks: rapamycin can suppress the immune system and affect blood sugar and lipids, and unregulated "research" peptides may contain impurities and lack human safety data. Compounded products vary in quality. These are reasons to use any of these treatments only under licensed medical supervision—never self-sourced—and long-term safety data are limited across the category.
Some people report feeling more energetic or clear-headed, but these reports are subjective and placebo effects are common with wellness products. Controlled evidence for meaningful anti-aging results is currently lacking, so it is reasonable to go in expecting uncertainty rather than a guaranteed benefit. If a provider promises specific, dramatic, or "proven" outcomes, treat that as a warning sign.
Look for genuine clinician oversight (a real review of your history and labs, not just a questionnaire), clear language about what is FDA-approved versus off-label or experimental, transparent pricing with easy cancellation, and honesty about the limits of the evidence. Be cautious with services that lean on bold longevity claims, sell unregulated products, or make it hard to speak with a licensed professional.
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