Protocol MD

Research & Guides

The peptide library, written by clinicians.

62 long-form articles on peptide therapy — what each compound does at the cellular level, who it's for, what the FDA says about it, and where the gray-market vendors get the story wrong. Every guide is reviewed by a US-licensed physician and updated as evidence evolves.

Articles

62

Categories

4

Avg Read

10 Min

Updated

2026

Abstract rendering of peptide molecules suspended in golden serum spheres — sermorelin's mechanism and side-effect profile.

Featured · Strength

Sermorelin Side Effects: What to Actually Expect

Sermorelin side effects, explained honestly by a physician — the common mild ones, the rare serious ones, how long they last, and when to call your doctor.

Dr. Richard Dentico, MD · 10 min read

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Pharmaceutical-grade NAD+ prepared for a physician-prescribed injection

Longevity · 11 min read

NAD+ Injections Before and After: What to Realistically Expect

What the before and after of NAD+ actually looks like: what people report, what trials have not confirmed, the side effects, and what NAD+ won't do.

Man sleeping peacefully in morning sunlight — sermorelin acts on the pituitary's own pulsatile growth hormone release, unlike exogenous HGH.

Strength · 12 min read

Sermorelin vs HGH: The Real Difference, Explained

Sermorelin and HGH both raise growth hormone — but in opposite ways. One signals your own pituitary to release GH in its natural pulsatile rhythm; the other floods the hormone in directly and bypasses your feedback loop. Here's the difference that actually matters.

A medical syringe filled with blue liquid on a light background

Longevity · 7 min read

NAD Injections Near Me: Do You Actually Need a Clinic Nearby?

NAD injections near me: you may not need a clinic at all. An honest comparison of local IV bars and physician-prescribed at-home NAD injections available in all 50 states — cost, oversight, and how to choose.

Water droplets on a clear surface — glutathione, the body's master antioxidant, working at the cellular level.

Longevity · 8 min read

Glutathione Benefits: What the "Master Antioxidant" Actually Does

Glutathione is your body's master antioxidant and a liver-detox cofactor — that part's settled. The disease 'benefits' are mostly still being studied. A physician-reviewed look at what's real, and what the delivery route does and does not change.

What Lowers Testosterone? The Evidence-Based List (and the Myths That Don't Hold Up)

Strength · 12 min read

What Lowers Testosterone? The Evidence-Based List (and the Myths That Don't Hold Up)

Alcohol, poor sleep, obesity, chronic stress, and certain medications genuinely lower testosterone. Masturbation and vasectomies don't. A physician's evidence-vs-myths breakdown.

Does Sermorelin Increase Testosterone? A Physician's Honest Answer

Strength · 9 min read

Does Sermorelin Increase Testosterone? A Physician's Honest Answer

Sermorelin is a GHRH analog — it works on your GH axis, not your testosterone. Here's what the science actually shows, where the confusion comes from, and when you need a different conversation.

  • 503A US Pharmacy
  • Physician-Prescribed
  • USP-Compliant Compounding

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