These are educational guides to treatments people commonly ask about, including compounded GLP-1 medications and peptides. Testing.com is an information and lab-testing resource; it doesn’t prescribe, provide, or sell these treatments. Each guide explains what the treatment is, the labs typically reviewed at baseline, dosing context, and what to expect. Whether any of them is right for you is a decision for you and a licensed provider.

Treatment Categories

Browse by category to learn how each treatment works and what testing is usually involved.

GLP-1

Peptides

How these treatments are accessed

These treatments aren’t prescribed or dispensed by Testing.com. A prescription comes from a licensed provider, and the medication from a compounding pharmacy. Any baseline lab work or monitoring a provider orders can be processed at CLIA-certified laboratories such as LabCorp and Quest Diagnostics.

If a provider recommends one of these, baseline lab work is usually ordered first, often at least one blood draw. Fasting requirements depend on which labs the provider orders. Candidacy thresholds for the compounded GLP-1 therapies above reflect the FDA-approved labeling for the branded versions and clinical guidance from the NIDDK.

Frequently Asked Questions

What is a GLP-1 agonist?

A GLP-1 (glucagon-like peptide-1) agonist is a medication that copies a hormone your gut releases after you eat. It slows digestion, curbs appetite, and helps keep blood sugar steady. GLP-1 agonists are FDA-approved for type 2 diabetes and, in some forms, for weight management in adults with obesity or in adults with overweight who have at least one weight-related health condition.

What is the difference between compounded and brand-name semaglutide or tirzepatide?

Compounded versions come from licensed compounding pharmacies. They aren’t FDA-approved as finished drug products, though they may use the same active ingredient as brand-name medications. The FDA’s compounding overview explains how compounded drugs are regulated differently from approved finished products. They’re typically prescribed when a brand-name option isn’t accessible or affordable. A licensed provider decides whether a compounded version is right for you.

What is sermorelin used for?

It’s a synthetic peptide that signals the pituitary gland to release growth hormone. Providers may consider it for people whose growth hormone levels have dropped with age. Lower levels can affect energy, body composition, and sleep. It’s a prescription medication. You’ll need a clinical check before starting.

What is NAD+ and why do people use it?

key role in how your cells make energy and repair DNA. Levels drop as you age. Some people try NAD+ therapy to support energy, thinking, or recovery, though research on its clinical benefits is still developing.

Do I need lab work before starting a treatment?

Yes, in most cases. A provider will typically order baseline labs before prescribing any treatment in this category. For GLP-1 medications, that often means fasting glucose and HbA1c. For peptide therapies, it may include hormone panels. These results help your provider decide on the right dose and confirm you’re a good candidate. The treatment itself is prescribed and provided separately by a licensed provider, not by Testing.com.

Can I start treatment without seeing a doctor in person?

Testing.com doesn’t prescribe these treatments. Whether an in-person visit is required depends on your state’s prescribing regulations. In many states, a licensed provider can review your health history and lab results remotely and authorize a prescription without a face-to-face appointment. Some states restrict or scrutinize remote prescribing of compounded GLP-1s and peptides, so the specific therapy and your location both factor in. You will need to visit a lab in person for any required blood draws.

Are these treatments covered by insurance?

Coverage depends on your plan and the specific treatment. Compounded medications often aren’t covered by insurance. Brand-name GLP-1 medications may be covered for certain diagnoses like type 2 diabetes, but weight management coverage varies widely. Check with your insurance provider.

Sources

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