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Peptide Spencer

Mitochondrial & longevity

NAD+

  • 500 mg
  • 1,000 mg

Custom strengths on request

Not FDA-approved. On FDA's 503A list (May 14, 2026): Category 1, bulk substance under evaluation. Source, May 14, 2026

At a glance

These dosages are a helpful guide, not a prescription. Every clinician is expected to do their own due diligence before prescribing.

  1. Start

    750 mg intravenous infusion over 6 h (healthy men, pilot)

    Human study
Frequency
single infusion
Route
intravenous
Course
6 h
Both human studies were IV only; do not apply to SC or IM use. A 500 mg daily IV series was poorly tolerated.

Full dosing guide

Get a quote

Custom strengths on request. Prices are quoted per clinic.