— Immune · Pricing Guide · 2026
How Much Does Thymalin Cost?
Thymalin is a peptide preparation derived from the thymus gland, the organ that trains the immune system's T-cells and shrinks with age. It is studied for immune balance in older adults and for healthy-aging protocols.
— Medication
$209 all-in
Compounded vial from an FDA-registered US pharmacy, one monthly fill
— Physician
Included
Review and ongoing care — no consult fee, no visit fee
— Shipping
Included
Sterile syringes and alcohol prep pads in the box
— Messaging
Unlimited
Message your care team any time — no membership fee
— The price
What you’re paying for.
At Pepti, Thymalin is $209 per monthly fill, all-in: the compounded medication from an FDA-registered US pharmacy, physician review and ongoing care, shipping, and unlimited messaging. There is no membership fee, no consult fee, and no visit fee on top. It ships as a multi-dose vial with sterile syringes and alcohol prep pads included.
— Insurance
Paying for Thymalin.
Compounded Thymalin is a cash-pay prescription and is not covered by insurance or Medicare. HSA and FSA funds can usually be applied.
— Common questions
Thymalin pricing,
answered.
Thymalin costs $209 per month at Pepti. That price is all-in — it includes the compounded medication, the licensed physician who reviews your assessment and manages your care, shipping to your door, and unlimited messaging with your care team. Refills are the same price each month; there is no separate membership, consult, or visit fee.
The compounded Thymalin from an FDA-registered 503A pharmacy, the vial with sterile syringes and alcohol prep pads, cold-chain shipping, the physician review of your assessment, ongoing physician care and dose adjustments, and unlimited messaging. If the physician does not approve you, the medication charge is refunded.
Yes. Thymalin is prescription-only. At Pepti you complete a free online assessment, a licensed US physician reviews it, and if it is appropriate for you the prescription is sent to a partner pharmacy that compounds it and ships it to you. Compounded Thymalin is not FDA-approved; it is prepared to a physician's prescription by a state-licensed, FDA-registered pharmacy.
No. Compounded Thymalin is a cash-pay prescription and is not covered by insurance or Medicare. Most patients can use HSA or FSA funds, since it is a physician-prescribed medication. Pepti does not bill insurance, which is part of why there are no consult or visit fees.
Research-use-only peptides are sold without a prescription, without a physician, and without a pharmacy. They are labeled "not for human use" for a reason: no one is verifying the identity, purity, sterility, or dose of what is in the vial. Pepti's $209 covers a licensed physician, a state-licensed FDA-registered compounding pharmacy, and independent batch testing — potency, sterility and bacterial endotoxin — at a third-party laboratory. You are paying for the medication to be what the label says it is.
No — every medication is its own catalog price however many are in the plan. Adding a second medication to the same plan means one assessment, one physician review and one shipment — each medication keeps its own catalog price. If you want several peptides for less, a pharmacy-compounded blend puts two to four in one vial at one price.
Once per fill. One vial is your monthly supply, and a fresh one ships about every 28 days depending on the dose your physician prescribes, billed at the same $209 each time. It renews until you cancel, and you can cancel anytime from your account. There is no contract and no cancellation fee.
Most peptide clinics price Thymalin as a medication fee plus an initial consult, a membership or program fee, and follow-up visit fees, and many require in-person visits. Pepti charges one monthly price of $209 that already includes the physician and shipping, with no consult, membership, or visit fees. Some clinics also dispense research-use-only peptides; Pepti dispenses only physician-prescribed, pharmacy-compounded medication.
— More questions26 more questions about Pepti, answered.
Thymalin is a peptide taken from the thymus gland, the organ that trains the immune system's T-cells and shrinks with age. It is studied for restoring immune balance in older adults and for healthy aging. Compounded; not FDA-approved. Thymalin is prescription-only at Pepti: a licensed physician reviews your assessment and, if appropriate, prescribes it to be compounded by a state-licensed, FDA-registered pharmacy.
Thymalin is $209 per month at Pepti. That is all-in: medication, physician review and ongoing care, shipping, and messaging. No membership, consult, or visit fees, and the price is the same in every state.
Thymalin is commonly prescribed for: Adults over 50 who get sick more often than they used to; People who want to support immune balance as part of a longevity protocol; Patients recovering slowly from illness whose physician is managing them; Anyone who prefers a natural thymus peptide over a synthetic immune drug. Whether it is appropriate for you is decided by the reviewing physician from your history, medications, and labs where required.
Yes. Thymalin is prescription-only. The free online assessment takes about five minutes, a physician licensed in your state reviews it within 4 hours, and if approved the prescription goes to the pharmacy. If not approved, the medication charge is refunded.
No. Thymalin can be prescribed from the assessment alone. If your physician wants labs for your care, they'll ask through your account; upload a recent lab report from any lab at no charge, or order Pepti's at-home panel.
Thymalin is a subcutaneous injection into the abdomen or thigh with a small insulin syringe. Your kit ships with sterile syringes and alcohol prep pads, and the exact dose and schedule are printed on the pharmacy label. Dosing videos are in your account.
One vial is your monthly supply at the dose your physician prescribes. A fresh vial ships about every 28 days, and the date moves if your physician changes your dose. Store it as the pharmacy label directs, refrigerated.
The compounded Thymalin with sterile syringes and alcohol prep pads, free tracked shipping in an unbranded box with insulated packaging, the physician review, ongoing physician care and dose adjustments, and unlimited messaging.
Reported side effects of Thymalin are usually mild: mild redness or swelling at injection site; temporary fatigue or headache; mild nausea (uncommon). The physician screens your history, medications, and allergies before prescribing, the medication-specific consent lists the known risks, and you can message your physician about anything you notice. Seek emergency care for severe symptoms.
Response varies by person, goal, and dose, and Thymalin is prescribed for ongoing use rather than a short trial. Your physician sets expectations at approval, tracks how you respond through your account, and adjusts the dose without an appointment.
Yes. Request it from your account or the app; your physician approves or declines. If approved you pay for the additional medication at the pharmacy's cost and the new dose applies to your next shipment.
Yes. Add Thymalin to a plan with another treatment and both go through one assessment and one physician review, shipping together on one schedule. Each keeps its own catalog price. The physician reviews the combination and can adjust it.
No. Compounded Thymalin is not FDA-approved. It is prepared to your physician's prescription by a state-licensed, FDA-registered 503A pharmacy and every batch is independently tested before release.
Yes, when prescribed by a licensed physician and dispensed by a licensed pharmacy, which is how Pepti provides it in every state it serves. Research-use-only Thymalin sold without a prescription is labeled not for human use and is a different product.
The thymus gland trains T-cells, the immune cells that recognize infections, and it shrinks steadily after our twenties. At Pepti it is prescribed to support supports immune balance, studied in older adults, helps the body train its t-cells, daily injection, monday to friday. Individual response varies, and your physician sets expectations at approval.
The thymus gland trains T-cells, the immune cells that recognize infections, and it shrinks steadily after our twenties. Thymalin supplies the thymus's own peptides and is studied for restoring the signals that help T-cells mature and stay balanced. Compounded Thymalin is not FDA-approved; it is prescribed off-label by a licensed physician after reviewing your assessment.
Thymalin is prescribed for supports immune balance, studied in older adults, helps the body train its t-cells, daily injection, monday to friday. It is commonly requested by adults over 50 who get sick more often than they used to; people who want to support immune balance as part of a longevity protocol; patients recovering slowly from illness whose physician is managing them; Anyone who prefers a natural thymus peptide over a synthetic immune drug. Whether it is appropriate for you is the reviewing physician's decision.
Thymalin is studied for supports immune balance, studied in older adults, helps the body train its t-cells, daily injection, monday to friday. Those are the goals it is prescribed to support at Pepti; results vary by person, dose, and consistency, and no outcome is guaranteed. Your physician tracks how you respond through your account.
A long-running Russian program (Khavinson and Morozov, 2003) reported fewer infections and better immune markers in older adults followed for years. Western controlled trials have not been done. References are listed on this page.
Thymalin is generally not prescribed with: active cancer or history of cancer (unless approved by oncologist); pregnancy or breastfeeding; severe kidney or liver disease; known allergy to the peptide or excipients. The physician screens for these in your intake, and anything that rules Thymalin out means it is not prescribed and is refunded.
At Pepti. Complete the free assessment, a physician licensed in your state reviews it within 4 hours, and if appropriate Thymalin is compounded by a state-licensed, FDA-registered pharmacy and shipped free to your door for $209 per month, all-in. Not prescribed means refunded.
Injectable vial: 5 mL at 1 mg/mL, containing 5 mg Thymalin. One vial is your monthly supply at the prescribed dose, and a fresh one ships about every 28 days.
Not currently. Thymalin ships as a multi-dose vial with sterile syringes and prep pads. The pepti Pen is available for 24 other treatments.
$209 per month covers the compounded Thymalin, the physician review, ongoing physician care including dose adjustments and refill review, unlimited messaging, and free tracked shipping. There is no membership, consult, visit, or refill fee; the only separate charges are optional at-home lab panels and a physician-approved dose increase billed at pharmacy cost.
Yes. Thymalin is on Pepti's live catalog, which lists only treatments a partner pharmacy can compound and ship today. If a physician prescribes it, it ships; if it ever cannot be dispensed, the charge is refunded.
Thymalin ships to 49 states and Washington, D.C, free and tracked, in insulated unbranded packaging. Eligibility is confirmed during the assessment from your shipping address.
— More in Immune
Other Immune treatments,
and what they cost.
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