Healthspan · Cellular energy · Mitochondrial support

The longevity stack, prescribed online.

NAD+, glutathione, GHK-Cu, and methylene blue: doctor-prescribed protocols for cellular energy, mitochondrial function, and healthy aging.

  • Multiple delivery formats: injection, nasal, topical
  • Third-party tested for purity
  • Free expedited shipping
  • Cancel anytime
Peptide12 longevity peptide therapy

Sermorelin Injection

From $179/mo

Compounded Sermorelin Injection

Treatments

Peptide12 longevity peptide therapy patients

Real peptide medicine, real cellular energy.

NAD+, glutathione, GHK-Cu, and methylene blue — doctor-prescribed longevity peptides and small molecules for healthspan, not just lifespan.

NAD+ (nicotinamide adenine dinucleotide) is the coenzyme every mitochondrion needs to convert food into ATP and to power the sirtuin enzymes that maintain DNA repair. NAD+ levels decline roughly 50% between age 20 and 60, and that decline is implicated in fatigue, reduced metabolic flexibility, and the cellular hallmarks of aging. Restoring NAD+ through doctor-supervised subcutaneous injection or nasal spray has been shown to raise plasma NAD+ within hours and is a foundational protocol for performance-focused adults pursuing healthspan.

Peptide12 offers the full longevity stack — compounded NAD+ injection, NAD+ nasal spray for needle-free use, NAD+ face cream for topical anti-aging, glutathione (the master cellular antioxidant), GHK-Cu copper-tripeptide for skin and hair, and low-dose methylene blue for mitochondrial and cognitive support. Every protocol is prescribed by a US-licensed doctor, third-party tested for purity and potency, and shipped overnight from FDA-registered pharmacies. Browse the full menu of longevity peptide treatments.

Start Your Longevity Protocol Today

Complete a quick online health intake

STEP

1

Share your health profile online. A US-licensed doctor reviews your fit and decides whether peptide therapy is right for you.

Complete a quick online health intake

Receive your prescription at your door

STEP

2

If approved, your custom prescription ships free and overnight in temperature-controlled packaging, arriving safely at your home.

Receive your prescription at your door

Get continuous care from your doctor

STEP

3

Message your care team anytime for dose adjustments, check-ins, and ongoing support that keeps you progressing toward your goals.

Get continuous care from your doctor

Why choose Peptide12?

Patients pick us for clinical rigor, transparent pricing, and care that doesn’t disappear after checkout.

FDA-registered pharmacies

Every prescription is compounded by FDA-registered 503A/503B pharmacies. Batch testing and certificates of analysis available on request.

US-licensed doctors

MDs licensed in your state, not just an order form. Your doctor titrates dosing and answers messages directly.

Transparent pricing

One flat price per protocol. No membership fees, no insurance hassle, no surprise charges. HSA and FSA accepted. Cancel anytime.

Care that doesn’t disappear

Message your doctor through your patient portal whenever you need to. Most replies within hours, never longer than 24.

What patients say

Real outcomes from people on NAD+, glutathione, and other longevity peptide protocols — all under doctor supervision.

NAD+ injection cleared a 2pm brain fog I’d been living with for years. Three weeks in and I notice it most mornings — sharper, more even energy. Doctor titrated me up slowly, no flushing.

Hassan M.

Denver, CO

Verified Customer

Glutathione injections cut my post-workout soreness in half. My liver enzymes also normalized after years of elevated ALT. Real, measurable change on bloodwork.

Joelle R.

Sacramento, CA

Verified Customer

NAD+ nasal spray for travel — a couple sprays before a red-eye and I’m functional the next day. Needle-free option that actually works.

Ravi P.

Austin, TX

Verified Customer

Low-dose methylene blue plus an SSRI screen at intake — they actually checked the contraindication. Focus through long writing sessions is markedly cleaner.

Tessa W.

Pittsburgh, PA

Verified Customer

GHK-Cu foam for hair density. Three months in, frontal hairline is visibly thicker. No scalp irritation, no shed phase like I had on minoxidil.

Felix K.

Madison, WI

Verified Customer

NAD+ face cream morning and night. Skin texture and tone shifted faster than any retinoid I’ve tried. The MD reviewed my routine and told me what to layer it under.

Nora E.

Hartford, CT

Verified Customer

Frequently asked questions

Start your longevity protocol today.

NAD+, glutathione, GHK-Cu, methylene blue — one care team, one prescribing doctor, one transparent price per protocol.

  • Compounded by FDA-registered 503A pharmacies
  • Doctor-led titration tuned to your tolerance
  • Injection, nasal, and topical formats
  • Free overnight, temperature-controlled shipping

Information for educational purposes only. Eligibility, dosing, and treatment decisions are made by a US-licensed prescribing doctor based on your medical history. Compounded medications are not FDA-approved as finished drug products and are prepared by FDA-registered 503A pharmacies under individualized prescription.

Peptide12 longevity peptide treatment