Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. All clinical decisions regarding peptide therapy must be made by a licensed clinician based on your individual health profile. New Blue Health is a technology and administrative services platform, not a medical provider.

12 Questions to Ask Before Starting Peptide Therapy

Peptide therapy is getting more attention than ever — and with that attention comes a flood of conflicting information, vague marketing claims, and forums full of anecdotal advice that may or may not apply to you. If you're seriously considering peptide therapy, the single most valuable thing you can do is walk into your clinical consultation armed with the right questions. This guide lays out twelve of them, explains why each one matters, and gives you enough context to have a genuinely productive conversation with a licensed clinician.

What Are Peptides and How Are They Used in Therapy?

Peptides are short chains of amino acids — typically between 2 and 50 — that act as signaling molecules in the body. In a therapeutic context, specific peptides are prescribed to support processes like growth hormone secretion, metabolic function, cellular repair, and sexual health, depending on the compound and the patient's clinical profile.

The peptides used in clinical therapy today are compounded at state-licensed 503A pharmacies and prescribed by licensed clinicians after a health review. They are not commercially manufactured drugs; they are prepared to order based on an individual prescription. This distinction matters, and it's one of the first things worth understanding before you start asking deeper questions.

Peptide therapy spans several categories. Recovery-focused peptides like sermorelin and tesamorelin target growth hormone–releasing hormone pathways. Metabolic peptides like semaglutide and tirzepatide have been investigated in clinical trials for weight management. Compounds like NAD+ and glutathione fall into the longevity and cellular health category. And PT-141 addresses sexual wellness. Each has a different mechanism, different risk profile, and different set of questions you should be asking.

Question 1: Am I a Good Candidate for Peptide Therapy?

Not everyone qualifies. Eligibility depends on your health history, current medications, lab results, and the specific peptide being considered. A licensed clinician evaluates all of this before determining whether a prescription is appropriate.

This is the question to lead with because it frames the entire conversation correctly. You're not shopping for a product — you're seeking a clinical evaluation. Some conditions are outright contraindications. For GLP-1 receptor agonists like semaglutide and tirzepatide, for example, a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN2) is a contraindication. A history of pancreatitis is also a significant risk factor that the prescribing clinician must evaluate.

Ask your clinician directly: "Based on my health history, are there any reasons I should not use this peptide?" Don't assume that completing an online intake form is the same as being cleared. The intake is a starting point. The clinical review is where the real decision happens.

Question 2: What Lab Work or Screening Is Required?

Some peptide pathways require baseline lab work before a clinician can make an informed prescribing decision. Others rely heavily on a detailed health history and intake questionnaire.

For growth hormone–related peptides like sermorelin or tesamorelin, IGF-1 levels and metabolic panels may be relevant. For metabolic pathways involving semaglutide or tirzepatide, a clinician may want to see recent A1C, fasting glucose, or lipid panels. The specific requirements vary by provider and by the peptide in question.

The point of asking this question isn't just logistical. It's about understanding how thorough the clinical evaluation actually is. If a platform is willing to prescribe without reviewing any health data at all, that's a red flag worth paying attention to. A 2021 review in the Journal of Clinical Medicine (Sievert et al.) emphasized that individualized assessment — including relevant biomarkers — is a baseline expectation for responsible prescribing of hormone-adjacent therapies.

Question 3: What Peptide Is Being Recommended and Why?

This sounds obvious, but many patients begin therapy without fully understanding why a specific peptide was chosen over alternatives.

If you're exploring recovery and performance support, there are meaningful differences between sermorelin and tesamorelin. Sermorelin is a 29-amino-acid analog of growth hormone–releasing hormone. Tesamorelin, a 44-amino-acid analog, has been specifically investigated for its effects on visceral adipose tissue. A head-to-head understanding of these compounds is worth your time — New Blue Health publishes a detailed comparison of tesamorelin vs. sermorelin that breaks down the clinical distinctions.

Ask your clinician: "Why this peptide and not another one? What does the evidence say about this compound for someone with my profile?" You want to hear a specific rationale, not a generic pitch.

Question 4: How Is the Peptide Sourced and Compounded?

Where your medication comes from matters enormously. Compounded peptides should be prepared at state-licensed 503A compounding pharmacies operating under the oversight of a prescribing clinician. This is a non-negotiable standard.

The difference between a legitimate compounded peptide and a "research chemical" purchased from an unregulated source is not trivial. Research chemicals are not manufactured under pharmacy-grade conditions, are not prescribed by a clinician, and carry unknown purity and contamination risks. If you want a practical framework for evaluating this, New Blue Health's compounded source verification checklist walks through the specific questions to ask any provider.

Here's what to look for: Does the platform use 503A-licensed pharmacies? Are those pharmacies subject to state board inspections? Is the platform itself certified by a third-party verification body? New Blue Health, for instance, holds LegitScript certification — a third-party compliance standard that evaluates business practices, licensing, and regulatory adherence. Not every telehealth platform can say that.

Question 5: What Are the Potential Side Effects and Risks?

Every peptide carries potential side effects, and a responsible clinician will discuss them before prescribing. The nature and severity of side effects vary by compound.

For GLP-1 receptor agonists (semaglutide, tirzepatide), the most commonly reported side effects include nausea, constipation, diarrhea, and injection-site reactions. More serious risks — including pancreatitis and the MTC/MEN2 contraindications mentioned earlier — must be disclosed and discussed. Faerber et al. (2023) documented gastrointestinal side effects as the primary reason for discontinuation in GLP-1 therapy, which underscores why dose titration and clinical monitoring matter.

For growth hormone secretagogues like sermorelin, side effects may include injection-site irritation, flushing, or headache. NAD+ injections can cause discomfort at the injection site and, in some cases, nausea.

The question to ask isn't just "What are the side effects?" but "What should I do if I experience them, and at what point should I contact you?"

Question 6: How Will My Progress Be Monitored?

Peptide therapy isn't a one-and-done prescription. Ongoing monitoring — whether through follow-up consultations, lab work, or symptom tracking — is how a clinician determines whether the therapy is working and whether adjustments are needed.

Ask specifically: "How often will we check in? Will I need repeat lab work? What metrics are we tracking?" A platform that ships medication and never follows up is not providing clinical care. It's filling orders.

Through clinician-guided telehealth platforms, follow-up is typically built into the process. The clinician who reviewed your intake is the same one evaluating your progress. This is where the telehealth model can actually work well — it removes geographic friction without removing clinical oversight.

Question 7: How Does Peptide Therapy Fit With My Current Health Plan?

If you're already on testosterone replacement therapy, taking other prescriptions, or managing a chronic condition, peptide therapy doesn't exist in isolation. Drug interactions, hormonal feedback loops, and overlapping mechanisms all need to be evaluated.

Some men explore combining TRT with peptides like sermorelin for recovery support or semaglutide for metabolic management. New Blue Health offers combined TRT and sermorelin protocols as well as metabolic-hormone stacks, but whether any combination is appropriate depends entirely on your individual health profile and the judgment of a licensed clinician.

Bring a full medication list to your consultation. Don't leave anything out — including supplements, over-the-counter drugs, and any "research" compounds you may have used previously.

Questions 8–12: Cost, Duration, Lifestyle, Legality, and When to Expect Changes

These five questions are practical, and they deserve straight answers.

Question 8: What does this actually cost? Pricing varies by peptide, supply duration, and platform. At New Blue Health, all pricing is all-in — the listed price includes the clinical consultation, prescription (if approved), medication, supplies, and shipping. Sermorelin starts at $279 for a 28-day supply, all-in (clinical consultation included). Tesamorelin starts at $299 for a 30-day supply. NAD+ injectable is $249 for 30 days. If a clinician determines that therapy is not appropriate after review, the patient is refunded their payment minus a $75 clinical consultation. There are no hidden fees layered on top.

Question 9: How long will I need to be on this? Duration depends on the peptide and the clinical goal. Some protocols are designed for defined periods; others may be ongoing. Ask your clinician for a realistic timeline and what criteria would signal it's time to stop or adjust.

Question 10: Do I need to change anything about my diet or training? Peptides are not a substitute for foundational health habits. GLP-1 receptor agonists, for instance, work alongside — not instead of — nutritional and activity changes. Your clinician should be able to outline what lifestyle factors will influence your results.

Question 11: Is this legal? Compounded peptides prescribed by a licensed clinician and prepared at a state-licensed 503A pharmacy are legal. The gray area exists around unregulated "research" peptides sold without a prescription — those are a different category entirely, and one you should avoid. New Blue Health's guide to evaluating peptide providers covers this distinction in detail.

Question 12: When might I notice changes? Individual results vary, and no responsible clinician will promise a specific outcome or timeline. Some patients report noticing subjective changes within weeks; objective biomarker changes may take longer. The honest answer is: it depends on the peptide, the dose, your baseline health, and your adherence to the protocol.

How New Blue Health Approaches This

New Blue Health is a technology and administrative services platform — not a medical provider — that connects patients with licensed clinicians for evaluation and, if appropriate, prescription of compounded peptides. The platform is LegitScript-certified and available in 48 states (Alabama and Mississippi excluded). Founded by Andy Palenzuela, who has spent 14+ years in regulated health product supply chains, the platform was built around a specific frustration: too many men were either overpaying for basic access to clinical care or getting no clinical oversight at all. Every order goes through a licensed clinician review before anything ships. That's the baseline, not the exception.

Frequently Asked Questions

Do I need a prescription for peptide therapy?

Yes. Peptide therapy requires a prescription from a licensed clinician. Through a clinician-guided telehealth platform, a licensed provider reviews your health history and, if appropriate, may prescribe a peptide compounded at a state-licensed 503A pharmacy.

What is the regulatory status of compounded medications?

Compounded peptides are not commercially manufactured drugs. They are prepared at state-licensed 503A compounding pharmacies under the direction of a prescribing clinician. This is an important distinction to understand before starting therapy — compounded medications are prepared to order, not mass-produced.

Does everyone qualify for peptide therapy?

No. Eligibility depends on clinical review. A licensed clinician evaluates your health history, lab results, and goals to determine whether peptide therapy is appropriate for you. There is no guarantee of prescription.

Can I use peptide therapy alongside TRT?

Some men explore peptide therapy in conjunction with testosterone replacement therapy, but whether this is appropriate depends entirely on your individual health profile. Discuss any combination of therapies with your clinician before starting.

Is peptide therapy available in every state?

Peptide therapy through telehealth platforms is available in most states but not all. Availability is subject to pathway, pharmacy, and provider licensing. New Blue Health, for example, does not serve Alabama or Mississippi. Check with your provider for current state availability.

Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Peptide therapy requires evaluation and prescription by a licensed clinician. Individual results vary, and no specific outcomes are promised or implied. New Blue Health is a technology and administrative services platform, not a medical provider. Content reviewed in accordance with our editorial policy.

Written by Andy Palenzuela — founder of New Blue Health, with 14+ years in regulated health product supply chains. Clinical content developed in collaboration with the New Blue Health clinical content team.