The Kesbury Health Learning Center

Longevity medicine, explained by clinicians

Clear, physician-reviewed answers to the questions people actually ask about NAD+, sermorelin, and at-home longevity care. No hype, just how it works and what the evidence does and doesn't say.

NAD+ · Foundations

What is NAD+?

The coenzyme behind cellular energy and DNA repair: what it is, why levels fall with age, and how physician-directed NAD+ therapy is delivered.

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NAD+ · Comparison

NAD+ injections vs. IV drips

At-home subcutaneous shots or an in-clinic intravenous drip? A clear comparison of cost, convenience, and continuity of care.

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NAD+ · How-to

How to do NAD+ injections at home

A small subcutaneous shot you give yourself after a physician's instruction. Here is what the routine actually looks like.

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NAD+ · Comparison

NAD+ vs. NMN vs. NR

Injectable NAD+ or oral NMN and NR supplements? The honest difference is oversight and quality control, not a winner.

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NAD+ · Cost

How much does NAD+ therapy cost?

A transparent breakdown of at-home subcutaneous NAD+ at $299 per month versus in-clinic per-session pricing, and what drives the difference.

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NAD+ · Safety

NAD+ injection side effects

NAD+ injections are generally well tolerated when physician-monitored. Here are the common, mild effects and when to check in.

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NAD+ · Dosing

NAD+ dosage, explained

There is no universal NAD+ dose. It is individualized and physician-directed, typically started low and titrated to your response.

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NAD+ · Benefits

NAD+ for energy

How NAD+ relates to cellular energy metabolism, what the early evidence shows, and the physician-directed path. Individual results vary.

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NAD+ · Get Started

How to get NAD+ prescribed online

The legitimate, physician-directed path: a four-step telehealth process from a LegitScript-certified practice.

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NAD+ · Benefits

NAD+ for brain fog

How NAD+ relates to cellular energy, what the early evidence shows about mental clarity, and when to see a physician.

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Trust & Safety

Is telehealth longevity medicine legitimate?

Yes, when it's physician-directed, certified, and transparent. Here's exactly how to tell a credible clinic from a prescription mill.

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Sermorelin · Basics

What is sermorelin?

A growth hormone-releasing hormone analog that signals your own pituitary rather than replacing the hormone. What it is, what it is not, and what the published evidence actually shows.

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Sermorelin · How it works

Sermorelin injections at home

What a subcutaneous injection actually involves, why the timing follows sleep, and why at-home is a location rather than a level of supervision.

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Sermorelin · Safety

Sermorelin side effects

What the published human studies actually report, what a prescribing physician screens for, and which reactions mean call us rather than wait.

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Sermorelin · Protocol

Sermorelin dosage

Why a dosing chart is the wrong artifact, what the published protocols used, and how baseline IGF-1 turns a dose into a decision rather than a guess.

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Sermorelin · Pricing

How much does sermorelin cost?

The published price, what it covers, why the lab panel is billed separately, and why a per-vial number found elsewhere is not the same purchase.

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Sermorelin · Getting started

How to get sermorelin prescribed online

Four steps, and the third one decides whether there is a fourth. What a clinical process looks like when the lab step is allowed to end it.

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Sermorelin · Evidence

Sermorelin for sleep and recovery

A well-described physiological link and a thin outcome literature are two different claims. Which one the evidence supports, and what to rule out first if sleep is the real problem.

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Longevity Stack · Cross-product

NAD+ and sermorelin together

Two separately studied pathways in one program. What each is supported by on its own, and why the combination is a rationale rather than a result.

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Sermorelin · Mechanism

What is growth hormone-releasing hormone (GHRH)?

The upstream signal, not the hormone. Where GHRH is made, how it reaches the pituitary, why growth hormone comes out in pulses, and what the measured age-related decline actually is.

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Labs · Protocol

Lab work and peptide therapy

Why the baseline panel is a prerequisite rather than an upsell, why IGF-1 is the marker, and what it means that a result is allowed to end the conversation.

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Trust · How care is delivered

Physician-directed versus direct-to-consumer

The difference is not the website. It is whether the process contains a step that is allowed to end in no therapy. Three questions, and what the research says about why they matter.

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Trust · Vetting a provider

Is online sermorelin legitimate?

A sermorelin-specific version of the vetting checklist: what to verify before you pay, and the one question whose answer separates a clinical process from a fulfilment pipeline.

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Educational, not medical advice. Individual results vary.