Rex MD review
By Nora Vance · Updated October 2026
Inside a men's testosterone program
Rex MD sells sermorelin as a five-times-a-week injection, but only through its men's Testosterone Program, which starts with a $99 lab-and-consult fee and bills a monthly subscription.
Our verdict
Rex MD is a good fit for a man who wants a lab-based look at low-testosterone symptoms and is open to sermorelin as one possible answer. It is a poor fit for anyone who simply wants to buy sermorelin. You pay $99 up front for labs and a video consultation, and the provider decides which medication, if any, suits you. The pricing deserves a careful read: a "$29 per use" headline and a $250 to $299 monthly range do not line up.
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At a glance
- Category
- sermorelin injections
- Format
- Injection
- Prescription
- Required
- Compounded
- Yes — not FDA-approved
- Labs
- Extra cost
What it is
Rex MD is a men's telehealth brand best known for erectile dysfunction treatment, with programs for weight loss, hair loss, sleep, anxiety and testosterone. Sermorelin sits inside the Testosterone Program as a "Testosterone Support" option, next to testosterone cypionate, testosterone gel and Clomid. Rex MD pitches it as a compounded peptide that prompts the pituitary to release growth hormone, which may indirectly support testosterone. The page is clear that sermorelin is a compounded drug and not FDA-approved. Everything is cash-pay: the FAQ says Rex MD does not accept insurance.
How it works
Getting started takes more steps than most sermorelin sellers. You answer an online questionnaire about symptoms and medical history. Once prequalified, you get labs drawn at a local Quest or LabCorp, or use an at-home test kit. Rex MD suggests an early-morning draw, between 8 and 10 a.m., when testosterone peaks. When results are back you book a video call with a licensed provider, who reviews them and decides whether any program medication fits. If sermorelin is prescribed, it ships in discreet packaging within two days, and rush shipping is free. After that you can message your provider anytime. The program requires new labs 90 days after you start, then every six months, plus a video visit at least once a year. That is more monitoring than many sellers offer, and it also means repeat lab visits.
Pricing transparency
Rex MD shows two numbers, and they tell different stories. The program card reads "From $29 per use." The footnote says the initial $99 fee covers lab tests and the provider consultation. It adds that the monthly subscription, including medication, ranges from $250 to $299 depending on which medication is prescribed. That range covers the whole Testosterone Program, so it is not a sermorelin-only price. At five injections a week, $29 per use would come to well over $500 a month, far above the stated range. Plan around the $250 to $299 monthly figure, but get sermorelin's exact monthly charge in writing after your consultation. Ask too whether the follow-up labs at 90 days and every six months cost extra. The page does not say.
Branded vs compounded
Rex MD's sermorelin is compounded, and the page says plainly that it is not FDA-approved but may be prescribed where appropriate. It is given as a subcutaneous injection five times a week. Elsewhere the page describes once-daily injections, often at bedtime, so your provider will set the exact schedule. No dose, vial size or pharmacy is named. Rex MD lists injection-site pain, swelling or redness, headaches, dizziness and flushing as common side effects. Nausea, vomiting or taste changes are less common, and allergic reactions are rare. Its safety note warns that heart-rate or blood-pressure changes may occur with an accidental overdose. The page also explains what to expect if you stop: growth hormone tends to drift back toward baseline.
Pros and watch-outs
What we like
- Labs and a video consultation before anything is prescribed
- Follow-up labs at 90 days, then every six months
- Free rush shipping in discreet packaging, shipped within two days
- Message your provider anytime between visits
- Clear compounding disclosure and side-effect list
Watch-outs
- Only sold inside the men's Testosterone Program
- $99 up-front fee for labs and the first consultation
- "$29 per use" does not match the $250–$299 monthly range
- No sermorelin-only monthly price published
- No dose, vial size or pharmacy named
- Repeat lab visits are part of staying on the program
- No insurance accepted
Best for
Men with low-testosterone symptoms who want bloodwork and a provider's judgment on whether sermorelin, testosterone or something else makes sense. It also suits someone who values ongoing lab monitoring.
Who should look elsewhere
Women, and anyone who already knows they want sermorelin and nothing else. It is also a poor match for shoppers comparing a plain monthly price, because the per-use figure and the program range cannot be lined up against a seller that prints one rate.
The evidence behind what Rex MD prescribes
We grade the molecules, not the marketing. Here is what the human data actually shows for each thing on their menu.
- Does sermorelin work? What the trials actually measured
Sermorelin reliably makes your pituitary release growth hormone. Beyond that the evidence is one placebo-controlled trial in 19 adults from 1997 — lean body mass up in men only, nothing in women, and no effect on sleep in either.
- Is Sermorelin FDA-Approved? The Real Answer
Sermorelin was FDA-approved once, under a different name, and that approval is gone. What is sold today is compounded — which is legal, but not the same thing as approved.
How Rex MD compares
A few alternatives worth a look, depending on what you’re optimizing for.
Prime Doctor RXNo sermorelin format listed for this seller
See Prime Doctor RX →
RNK HealthA published price on the format you came for
See RNK Health →
Strut HealthComparing formats inside one seller
See Strut Health →
More sermorelin injection sellers reviews: Nu Image MedicalNuform HealthTrava HealthInvigor MedicalGet Thin MDReadyRx
Reviews & prices
How we assessed this. This review reflects Sermorelin Picks’s own read of Rex MD’s publicly-stated model — pricing transparency, clinical oversight, medication clarity, and access — against our editorial methodology. We publish no fabricated ratings or first-hand outcomes. A partnership never changes the assessment — see how we make money.
Frequently asked
- How much does sermorelin cost at Rex MD?
- Expect a $99 initial fee for labs and the provider consultation. After that, Rex MD says the monthly subscription, medication included, ranges from $250 to $299 depending on what is prescribed. The program card also shows "From $29 per use," which does not square with that range at five injections a week, so confirm the monthly charge before you start.
- Can I buy sermorelin from Rex MD without the testosterone program?
- No. Sermorelin is listed as a testosterone-support option inside the Testosterone Program. You go through the questionnaire, labs and video consultation, and the provider decides whether sermorelin or another program medication fits.
- Do I need bloodwork to get sermorelin from Rex MD?
- Yes. Labs come before the consultation, at a Quest or LabCorp location or with an at-home kit. You will need new labs 90 days after starting and then every six months.
- How is Rex MD's sermorelin taken?
- As an injection just under the skin, five times a week according to the program page. The page also describes once-daily dosing, often at bedtime. Your provider sets the schedule and shows you how to inject.
- Does Rex MD take insurance for sermorelin?
- No. Rex MD does not accept insurance. The $99 initial fee and the monthly subscription are paid out of pocket.