Physician-Guided Care

    Understanding
    peptides

    What peptides are, where the research stands, and how a licensed physician decides whether any peptide is appropriate for you.

    The Basics

    What peptides are

    What peptides are, and how a physician decides whether one is appropriate for you.

    Overview

    What a peptide is

    A short chain of amino acids that acts as a signaling molecule in the body.

    Overview

    The role of research

    The compounds prescribed through Kiln are each the subject of clinical or preclinical research. How far that research has gone differs by compound.

    Overview

    Physician judgment

    A licensed physician decides, after reviewing your labs and medical history. A website cannot answer it.

    Overview

    Individual assessment

    Any prescription follows an individual clinical assessment. Peptides prescribed through the platform are compounded by a licensed 503A pharmacy.

    Peptide Science

    How peptides work

    Peptides are short chains of amino acids that act as signaling molecules. Below are several peptides named in the research, with no claim about what they will do for any individual.

    Peptide

    TirzepatideGLP-1 / GIP receptor agonist

    Mechanism of Action

    A dual GLP-1 and GIP receptor agonist given by subcutaneous injection.

    Research status

    GLP-1 and GLP-1 / GIP agonists have been studied in large clinical trials for metabolic and weight indications.

    How it's prescribed

    • Requires recent labs
    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    Peptide

    SemaglutideGLP-1 receptor agonist

    Mechanism of Action

    A GLP-1 receptor agonist given by subcutaneous injection.

    Research status

    GLP-1 receptor agonists have been studied in large clinical trials for metabolic and weight indications.

    How it's prescribed

    • Requires recent labs
    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    Peptide

    PT-141Bremelanotide

    Mechanism of Action

    A melanocortin receptor agonist that acts centrally.

    Research status

    Studied for its central effect on sexual-health pathways. Any use is off-label and decided by a licensed clinician.

    How it's prescribed

    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    • Dispensed against an individual prescription
    Peptide

    SermorelinGrowth hormone-releasing hormone analogue

    Mechanism of Action

    A growth hormone-releasing hormone analogue given by subcutaneous injection.

    Research status

    Studied for its effect on the body's own growth hormone axis. Any use is off-label and decided by a licensed clinician.

    How it's prescribed

    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    • Dispensed against an individual prescription
    Peptide

    NAD+Nicotinamide adenine dinucleotide

    Mechanism of Action

    A coenzyme central to cellular energy metabolism, given by injection.

    Research status

    Studied in preclinical and early clinical research on cellular energy and metabolism. Any use is decided by a licensed clinician.

    How it's prescribed

    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    • Dispensed against an individual prescription
    Peptide

    GlutathioneAntioxidant tripeptide

    Mechanism of Action

    An antioxidant tripeptide, given by injection.

    Research status

    Studied for its role as the body's principal intracellular antioxidant. Any use is decided by a licensed clinician.

    How it's prescribed

    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    • Dispensed against an individual prescription
    Topical peptide

    GHK-CuCopper-binding peptide (topical)

    Mechanism of Action

    A copper-binding peptide applied topically.

    Research status

    Studied for its role in skin and tissue support. Any use is decided by a licensed clinician.

    How it's prescribed

    • Prescribed only after physician review
    • Compounded by a licensed 503A pharmacy
    • Dispensed against an individual prescription
    Evidence-informed care

    What evidence means at Kiln

    The compounds discussed here do not all carry the same level of clinical evidence, and Kiln does not treat them as if they do. Whether any treatment is appropriate is a decision a licensed provider makes, not a claim the website makes for you.

    When a provider considers a treatment, they weigh:

    • Published research
    • FDA approval status
    • Your clinical history
    • Laboratory findings, when appropriate
    • Known risks
    • Contraindications
    • Alternative treatments
    • Your individual circumstances
    Safety & Oversight

    Safety is non-negotiable

    Every prescription is written by a licensed physician, and any plan is reviewed and adjusted at the physician's discretion.

    Comprehensive Baseline Bloodwork

    Before any prescription is written, we order a comprehensive baseline panel, including CBC, metabolic markers, inflammatory markers, and the biomarkers relevant to your protocol. We prescribe from your actual bloodwork, not guesswork.

    Ongoing Monitoring

    Your body's response changes over time. Your physician may order follow-up labs and adjust the plan based on how you respond, at the interval they judge appropriate.

    Licensed Physician Oversight

    Prescriptions are written by a licensed physician at our independent partner medical practice, licensed in the states it serves. Your protocol is designed and prescribed by that physician.

    503A Compounding

    Medications are compounded by our partner 503A-licensed pharmacy. Potency and sterility testing documentation is available on request.

    Ready to speak with a licensed physician?

    Start with a free 5-minute assessment. A licensed physician reviews your intake and labs and decides whether treatment is appropriate for you.

    Start Your Free Assessment
    KILN

    Physician-guided treatment for men and women. When a medication is compounded, it is prepared by our partner 503A pharmacy.

    Stay in the loop

    Occasional updates on treatments, clinical research, and quality you can verify. No spam.

    Kiln is currently available in all 50 states, Washington, D.C., and Puerto Rico. The treatments available to you are confirmed when you enter your state at intake.

    Kiln Health is a marketing and technology platform. It does not practice medicine, prescribe, or operate a pharmacy. A licensed physician decides whether to prescribe, and an independent licensed pharmacy fills it.

    Compounded medications are not FDA-approved and may involve off-label use. They are not FDA-approved to diagnose, treat, cure, or prevent any disease. The FDA does not review compounded drugs for safety, effectiveness, or manufacturing quality before they are marketed.

    Product and medication images on this site are for illustration only and may not depict the exact medication, formulation, or packaging a patient receives.

    Kiln Health, LLC, 1209 N Orange St, Wilmington, DE 19801. Contact: +1 (210) 593-8067.

    HIPAA-Compliant Platform · Prescriptions Filled by a Licensed Pharmacy

    © 2026 Kiln Health, LLC. Medical services are provided by licensed physicians affiliated with an independent professional medical corporation, made available through LocumTele, a third party provider network. Prescriptions are dispensed by VitaScripts Pharmacy, an independent, licensed 503A compounding pharmacy. Enter your state during intake to check availability.