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New — The Peptide Dictionary: 128 terms, explained simply
New guide — NAD+ for Anti-Aging: What the Science Says
New guide — GHK-Cu: the copper peptide for your skin
Not sure where to start? — A 60-second quiz points you to the path that fits your goal
New explainer — Semaglutide: what the research says, made simple
Browse — Peptide guides, made simple
New — The Peptide Dictionary: 128 terms, explained simply
New guide — NAD+ for Anti-Aging: What the Science Says
New guide — GHK-Cu: the copper peptide for your skin
Not sure where to start? — A 60-second quiz points you to the path that fits your goal
New explainer — Semaglutide: what the research says, made simple
Browse — Peptide guides, made simple
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Best NAD+ supplements of 2026

Six telehealth NAD+ programs our peptides.io editorial team reviewed for clinician oversight, pricing transparency, LegitScript compliance, and dose efficacy. Compounded NAD+ injectables are not FDA-approved — talk to your doctor.

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Common Questions

Where is peptides.io available?
peptides.io is available to users throughout the United States. We feature licensed telehealth providers that collectively operate across all 50 US states. Individual provider and medication availability may vary by state due to differing licensing requirements and state-level telehealth regulations. When you select a provider, that provider's own intake process will confirm eligibility and availability in your state before any consultation or prescription takes place.
What can I expect from NAD+ therapy?
Most users report changes in energy, mental clarity, and sleep within 2–4 weeks. NAD+ is a coenzyme, not a stimulant — effects build with consistent use. Compounded NAD+ has not been evaluated by the FDA for safety or effectiveness. Individual results vary.
Should I choose injectable, sublingual, or nasal NAD+?
Injectable NAD+ delivers the highest bioavailability and is preferred by most providers for therapeutic dosing. Sublingual drops and nasal sprays are needle-free options, with lower per-dose bioavailability — your clinician will recommend a format based on your goals and tolerance.
Is this a subscription?
Yes. Long-term consistency is key for sustained NAD+ benefits. Monthly subscriptions ensure you never run out of medication. You can pause or cancel at any time.
What side effects can NAD+ cause?

NAD+ injections, drops, or nasal sprays can cause side effects. Commonly reported effects include:

  • Nausea (often most pronounced when starting or increasing the dose)
  • Vomiting
  • Diarrhea
  • Constipation
  • Abdominal discomfort
  • Headache
  • Fatigue

These side effects are often most noticeable during the initial weeks of treatment and during dose escalation periods. Many users report that side effects diminish as their body adjusts to the medication through a gradual titration process.