Health note

The short version: Peptide Clarity Guide helps you compare providers and understand treatments. It isn't medical advice, and it isn't a substitute for a clinician who knows your health history.

What this site is, and isn't

• It's information: who sells what, what it costs, and what the research says.
• It isn't a clinic, a pharmacy or a prescriber. Nobody here examines you or prescribes anything.
• A pick means a provider cleared our six rules. It doesn't mean a treatment is right for you.

Before you start any treatment

Talk to a licensed clinician about your history, the medications you take and what you're hoping for. The providers on our lists do this as part of their intake; your own doctor can too. Tell any new prescriber about everything you already take, supplements included.

About compounded drugs

Some providers prescribe compounded versions of medications. Compounded drugs aren't FDA-approved, and the FDA doesn't review them for safety, effectiveness or quality before they're dispensed. A licensed pharmacy makes them for an individual prescription.

About peptides and newer treatments

Many longevity treatments have small or early studies behind them. Our guides say when that's the case. Some peptides you'll see online can't be legally compounded by US pharmacies right now. We explain those but never list sellers for them, and we don't give instructions for using them on your own.

In an emergency

Call 911 or go to the nearest emergency room. For poison or overdose questions, call Poison Control at 1-800-222-1222.

If something feels wrong after starting a treatment

Contact the prescribing provider or your own doctor. You can also report a side effect to the FDA through MedWatch.