PE-22-28 (Injectable) in San Marcos, TX
Doctor-prescribed PE-22-28 (Injectable) for San Marcos residents. Reviewed by licensed Texas physicians, compounded at FDA-registered pharmacies, and shipped straight to your door in San Marcos — no clinic visit required.
— All-in monthly price
No membership fee · this is the full price · free shipping · avg 4-week supply
— Add in-depth bloodwork
Optional — add a physician-reviewed at-home blood panel to your plan.
Your sex-hormone baseline plus the safety markers that matter on therapy — blood counts, liver and kidney function — from one painless upper-arm device. Matched to your sex (PSA for men; progesterone & FSH for women). No needle, no clinic, physician-reviewed.
This treatment requires licensed provider review and approval. Treatment is not guaranteed. If prescribed, medication is fulfilled by a licensed U.S. pharmacy where permitted by law. Compounded medications are not FDA-approved or FDA-cleared.
Reviewed
Reviewed by Dr. Gene Lee, MD · Board-certified Family Medicine
Every Pepti prescription is reviewed by a licensed U.S. physician before it's dispensed — and only provided if clinically appropriate.
About PE-22-28 (Injectable)
A peptide fragment studied as a TREK-1 potassium channel activator, explored for mood support and neuroprotection. Compounded; not FDA-approved.
Benefits
— Formulation
— Quality
Every batch independently tested
Every medication batch dispensed through Pepti is independently tested by a qualified third-party laboratory for applicable quality and safety standards before the pharmacy releases it. Batches are tested to the same standard used by 503B outsourcing facilities.
Sterility
USP <71>Confirms the finished preparation is free of viable microorganisms.
Bacterial endotoxins
USP <85>Screens for endotoxins that can cause fever or inflammatory reactions.
Potency
AssayVerifies the labeled concentration of the active peptide is what is in the vial.
Purity
HPLCChecks the active peptide against impurities and degradation products.
Identity
Mass spectrometryConfirms the peptide in the vial is the correct molecule.
pH
USP <791>Confirms the solution sits within the range specified for injection.
Particulate matter
USP <788>Checks the finished vial for visible and sub-visible particles.
Container closure integrity
USP <1207>Confirms the vial seal holds so sterility is maintained through the beyond-use date.
— Your protocol
How PE-22-28 is prescribed in San Marcos, Texas.
— Who it's for
- Adults with a low, flat mood their physician has evaluated
- People under chronic stress who want support without a conventional antidepressant
- Patients who understand the evidence is from animal studies
- Anyone pairing it with Selank or Semax for mood and focus
Your physician decides whether PE-22-28 is appropriate for you after reviewing your intake and labs.
— Directions & duration
Inject 0.25 mL (25 units) subcutaneously once daily Monday through Friday.
— What's included
- Licensed physician review of your intake, history, and labs
- Medication compounded to your prescription by a PCAB-accredited, FDA-registered pharmacy
- Every batch independently tested before release
- Sterile syringes and alcohol prep pads for injectables
- Tracked delivery to your door, refills on schedule
- Message your physician anytime; dose changes without an appointment
— Storage & handling
- Store refrigerated (36–46°F / 2–8°C) at all times, including before first use.
- One vial is your monthly supply. A fresh vial ships to your San Marcos, Texas address every 28 days on your refill schedule, so you're always well inside the beyond-use date on your label.
- Protect from light. Wipe the stopper with an alcohol pad before every draw.
- Dispose of syringes in the sharps container per the included instructions.
— What to expect
A typical course of PE-22-28 in San Marcos, Texas.
— The science
How PE-22-28 works, and what the research shows.
— How it works
PE-22-28 is a small piece of a natural brain protein that blocks a channel in nerve cells tied to mood.
Blocking it is studied for a fast lift in mood and for helping the brain grow new cells.
— Clinical evidence
Rodent studies reported antidepressant-like effects within days and new brain-cell growth.
Djillani and colleagues, 2017There are no published controlled human trials.
How it works in San Marcos
- Complete a free online intake (~5 minutes).
- A licensed Texas physician reviews your case within 24 hours.
- Your prescription ships from our FDA-registered compounding pharmacy.
- Free shipping arrives in San Marcos 2–4 business days later. Refills ship automatically when your supply runs out — cancel anytime.
PE-22-28 (Injectable) for San Marcos patients
San Marcos — home to Texas State University — is in Hays County, part of the Austin metro and home to roughly 70K residents, midway between Austin and San Antonio. Pepti serves San Marcos and the surrounding Texas area through licensed Texas physicians — and is available in all 50 states and Washington, D.C. Texas allows asynchronous telemedicine prescribing once a valid physician-patient relationship is established under Texas Medical Board rules. No in-person visit is required for peptide or GLP-1 prescribing through a licensed Texas physician.
Cognitive-support peptides are prescribed through Pepti's standard telehealth process — a licensed Texas physician reviews each San Marcos intake, and refills stay under ongoing oversight.
Texas has one of the largest telehealth markets in the country and a growing concentration of compounding pharmacies serving the state.
Dosing
Your prescribing physician determines the right dose, schedule, and how it's administered — based on your goals, medical history, and lab work. Your personalized protocol is provided after your consultation.
Important safety information
+
Possible side effects
Do not use if you have
If you experience severe side effects, call 911 or go to your nearest emergency room.
Frequently asked
in San Marcos.
Can I get PE-22-28 (Injectable) prescribed in San Marcos?
Yes. San Marcos residents can get PE-22-28 (Injectable) prescribed online by a physician licensed in Texas, with no in-person visit. Your prescription is compounded at an FDA-registered pharmacy and shipped to San Marcos. Texas allows asynchronous telemedicine prescribing once a valid physician-patient relationship is established under Texas Medical Board rules. No in-person visit is required for peptide or GLP-1 prescribing through a licensed Texas physician.
How long does delivery take to San Marcos?
Orders ship from our FDA-registered compounding pharmacy within 1–3 business days of physician approval and typically arrive in San Marcos 2–4 business days after shipment. Shipping is free to every San Marcos address, and we deliver throughout Hays County and the wider Austin metro.
Do I need to visit a clinic in San Marcos?
No. Pepti is fully telehealth — San Marcos patients complete the entire process online, from intake to refills. Texas allows asynchronous telemedicine prescribing once a valid physician-patient relationship is established under Texas Medical Board rules. No in-person visit is required for peptide or GLP-1 prescribing through a licensed Texas physician.
How much does PE-22-28 (Injectable) cost in San Marcos?
PE-22-28 (Injectable) starts at $219 at Pepti. Pepti is subscription-based — your refill ships when your supply runs out, and you can cancel anytime. Pricing is the same in San Marcos as everywhere else — no city or Texas markup, and shipping is included.
Is Pepti available outside San Marcos?
Yes — Pepti is available in all 50 states and Washington, D.C. Wherever you are in the country, a physician licensed in your state reviews your intake and your medication ships from an FDA-registered compounding pharmacy.
Is there a peptide clinic in San Marcos that offers PE-22-28 (Injectable)?
San Marcos patients don't need an in-person peptide clinic — Pepti provides the same doctor-prescribed PE-22-28 (Injectable) entirely online. A physician licensed in Texas reviews your intake, and your medication ships from an FDA-registered compounding pharmacy to any San Marcos address. Unlike "research use only" peptide sites, every Pepti order requires a valid patient-specific prescription and a licensed dispensing pharmacy.
Is "research grade" PE-22-28 (Injectable) the same as what Pepti ships to San Marcos?
No. "Research use only" PE-22-28 (Injectable) is sold with no prescription, no physician, and no dispensing pharmacy, and is not legally sold for human use — independent testing of research-grade peptides has repeatedly found underdosing, mislabeling, and contamination. Prescription PE-22-28 (Injectable) is compounded for you at an FDA-registered US pharmacy after a licensed physician's review. When comparing PE-22-28 (Injectable) options in San Marcos, only consider providers that can name their prescribing physicians and their dispensing pharmacy.
References
- Djillani A, Pietri M, Moreno S et al.. Shortened Spadin Analogs Display Better TREK-1 Inhibition, In Vivo Stability and Antidepressant Activity · Front Pharmacol (2017) · PMID 28955242
- Mazella J, Pétrault O, Lucas G et al.. Spadin, a sortilin-derived peptide, targeting rodent TREK-1 channels: a new concept in the antidepressant drug design · PLoS Biol (2010) · PMID 20405001
Citations are provided for educational purposes. They do not constitute medical advice. Always discuss any peptide protocol with your prescribing physician.
PE-22-28 (Injectable) near San Marcos
More peptide therapy in San Marcos
More from Cognitive
Pepti operates in San Marcos, Texas through licensed physician partnerships. Compounded medications are produced at FDA-registered 503A pharmacies. Treatment decisions are made by your prescribing physician.
— Pharmacy network accreditation
PCAB-accredited pharmacies on every order.
Every fulfillment runs through a PCAB-accredited pharmacy.
— Get started in San Marcos
Ready to start PE-22-28 (Injectable) in San Marcos?
Free assessment. Licensed Texas physicians. Money-back guarantee if not approved.