Question 1

What is peptide therapy?

Accepted Answer

Peptide therapy uses short chains of amino acids — peptides — to signal specific biological processes in the body. Different peptides target different systems: BPC-157 promotes tissue repair; sermorelin stimulates growth hormone production; semaglutide suppresses appetite through GLP-1 receptor activation. They are not the same as hormones (which replace deficient hormones directly) — peptides typically work by stimulating your body's own production or regulatory processes. Most peptides used therapeutically are synthetic versions of peptides that occur naturally in the human body.

Question 2

Is peptide therapy legal in California?

Accepted Answer

Yes, with a physician prescription. Compounded peptides require a valid prescription from a licensed physician in California and must be dispensed by a licensed compounding pharmacy. They cannot be legally purchased for human use without a prescription — online vendors selling peptides 'not for human use' or 'for research only' are operating in a legal gray area that exposes patients to unregulated, unverified products. With a valid prescription, compounded peptide therapy is entirely legal in California.

Question 3

Do I need a prescription for peptide therapy?

Accepted Answer

Yes. All compounded peptides intended for human therapeutic use require a physician prescription in California. This includes BPC-157, sermorelin, semaglutide, tirzepatide, TB-500, and all other compounded peptides. A telehealth consultation with a California-licensed physician is the standard path — no in-person clinic visit is required under current California telehealth law.

Question 4

How much does peptide therapy cost in California?

Accepted Answer

Pricing varies by peptide. BPC-157 runs $150–250/month. Sermorelin $200–350/month. Semaglutide $150–300/month (compounded) vs. $800–1,200/month for brand-name Ozempic. TB-500 runs $80–150 per vial. Tirzepatide runs $300–700/month. The initial telehealth consultation is $99–199. Lab work, if required, is $40–250 depending on the panels needed. Shipping is typically free or a small flat fee. Insurance does not cover compounded peptides.

Question 5

What is the difference between compounded peptides and brand-name drugs?

Accepted Answer

Brand-name drugs like Ozempic, Wegovy, and Mounjaro are FDA-approved products manufactured by pharmaceutical companies and held to specific manufacturing standards. Compounded peptides contain the same active ingredient but are made by a licensed compounding pharmacy to a specific patient's prescription. Compounded versions are not FDA-approved, but they are regulated — the pharmacy must hold state licensure and follow USP 797/795 sterility standards. The main differences: compounded versions cost significantly less and can be customized in dose and formulation. The main tradeoff: they lack FDA approval.

Question 6

How are peptides administered?

Accepted Answer

Most therapeutic peptides are administered via subcutaneous injection — a small insulin-type needle inserted just under the skin, typically in the abdomen. This sounds intimidating but most patients describe it as nearly painless. Some peptides (like BPC-157 for gut conditions, PT-141 for sexual function) can be taken as oral capsules or intranasal sprays. Your pharmacy will ship supplies — syringes, needles, alcohol swabs — along with the medication, and your physician's team will walk you through the injection technique.

Question 7

How long until I see results?

Accepted Answer

It depends on the peptide and what you're treating. Sermorelin patients typically notice improved sleep within 2–4 weeks; body composition changes take 3–6 months. BPC-157 for acute injuries can show pain reduction in 1–2 weeks; chronic conditions take 4–12 weeks to assess. Semaglutide patients often notice appetite suppression within the first week and meaningful weight loss (3–5%) within 4–8 weeks. TB-500 for soft tissue injuries: 2–6 weeks depending on injury severity. None of these are overnight solutions.

Question 8

Are there side effects?

Accepted Answer

Side effects vary by peptide. GLP-1 medications (semaglutide, tirzepatide) most commonly cause GI issues — nausea, diarrhea, constipation — especially during dose escalation; these usually resolve. Sermorelin can cause injection site irritation, flushing, and headache early in treatment. BPC-157 and TB-500 have minimal documented side effects at standard doses, though human safety data is more limited than for GLP-1 medications. All peptides carry a theoretical concern about use in patients with active malignancy. A thorough physician consultation will screen for contraindications specific to each compound.

Question 9

What is the difference between BPC-157 and TB-500?

Accepted Answer

Both are injury-recovery peptides, but they work through different mechanisms. BPC-157 (Body Protective Compound-157) is derived from a gastric protein and is particularly effective for tendon-to-bone healing, gut inflammation, and localized injury repair. It is available as oral capsules or injection. TB-500 (Thymosin Beta-4 fragment) works through actin-binding and has stronger systemic anti-inflammatory and angiogenic effects, making it better suited for broad soft-tissue and muscle repair. Many patients and physicians combine both. BPC-157 costs $150–250/month; TB-500 runs $80–150 per vial.

Question 10

Can I do peptide therapy if I have other health conditions?

Accepted Answer

It depends on the condition and the peptide. Some conditions are contraindications: active cancer rules out most angiogenic peptides (BPC-157, TB-500) and all growth hormone secretagogues; a personal or family history of medullary thyroid carcinoma or MEN2 rules out GLP-1 medications; active pancreatitis rules out semaglutide and tirzepatide. Hypothyroidism, autoimmune conditions, and metabolic disorders don't automatically exclude patients but do affect protocol design. The physician intake process is designed to catch these issues. Disclose your full medical history — including medications and supplements — to your prescribing physician.

Peptide Therapy FAQ: California Patient Questions

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