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Muscle Building

Build lean mass, increase strength, and optimize your physique — prescribed by licensed physicians.

See if you qualify for prescription muscle building treatment
Compounded at FDA-registered pharmacies and prescribed by licensed physicians
Free shipping with every refill
01On-demand provider coaching and support
02Licensed physicians prescribing in 45 states
03Free shipping with every order

Safety info: Peptide therapy may have side effects. Talk to your healthcare provider about whether prescription peptides are right for you. Not all patients qualify. Individual results may vary. Learn more.

11
Available treatments
Rx
Doctor prescribed
45
States covered
Free
Shipping included

A full suite of muscle building treatments

CJC-1295 / Ipamorelin
Anti-Aging

CJC-1295 / Ipamorelin

Growth & anti-aging

Ipamorelin
Anti-Aging

Ipamorelin

Clean GH release

Sermorelin
Anti-Aging

Sermorelin

Natural GH stimulation

MK-677 (Ibutamoren)Coming Soon
Anti-Aging

MK-677 (Ibutamoren)

Oral growth hormone secretagogue

$199Coming Soon
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MOTS-c
Anti-Aging

MOTS-c

Mitochondrial optimization

Gonadorelin
Hormones

Gonadorelin

Hormone support & fertility

HCG
Hormones

HCG

Hormone optimization & fertility

Follistatin 344Coming Soon
Muscle

Follistatin 344

Myostatin inhibitor — unlock muscle growth

$349Coming Soon
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IGF-1 LR3Coming Soon
Muscle

IGF-1 LR3

Insulin-like growth factor — muscle cell growth

$299Coming Soon
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Hexarelin
Anti-Aging

Hexarelin

Potent growth hormone secretagogue for recovery and anti-aging.

PEG-MGF
Muscle

PEG-MGF

Targeted muscle repair and growth peptide

The process

How works

No office visits. No waiting rooms. No insurance needed.

Step 01

Free assessment

Answer health questions online. Takes 3 minutes. 100% confidential.

Get started
[p]
[pepti]

What's your main health goal?

RecoveryWeight lossAnti-aging

Recovery

I'd recommend BPC-157 — the gold standard.

BPC-157
$149/mo
Get started →
Type a message...
Step 02

Doctor prescribes

A licensed physician reviews your profile and creates your treatment plan.

Learn more
Doctor
Dr. Patel
Reviewing now
Patient
Mike R., 34
Texas · Male · 185 lbs
Treatment
BPC-157
Recovery · Knee injury
ID verified
Consents signed
Approve prescription
Step 03

Delivered free

Compounded at a licensed pharmacy. Shipped to your door. Every month.

See pricing
Order #4821
BPC-157 (10mg)
Monthly subscription
Prescribed
Compounding
Shipped
Out for delivery
Tracking
Arrives today by 5pm
The science

How muscle building peptides work

Muscle growth is limited by two factors: your growth hormone levels and myostatin — a protein your body produces specifically to cap muscle growth. Peptides like Follistatin block myostatin, removing your body's natural growth limiter. IGF-1 LR3 goes further by creating entirely new muscle cells (hyperplasia), not just making existing ones bigger. Combined with GH-boosting peptides like CJC/Ipamorelin and MK-677, you get a complete muscle building stack that works with your body's natural systems.

Included with every plan
Licensed physician consultation
FDA-registered pharmacy
Free baseline labs
AI wellness coach
24/7 messaging support
Free shipping
Cancel anytime
Build the physique you've been working for.

If your physician doesn't approve your treatment, you pay nothing. Every plan includes free shipping, physician access, baseline labs, and our AI wellness coach. Cancel anytime — no contracts, no commitments.

Money-back guarantee
Free shipping
Cancel anytime
HSA/FSA accepted

FAQ

Common questions

No. These peptides work WITH your body's natural systems — they signal your body to produce more growth hormone, block growth limiters, or create new muscle cells. Steroids replace your hormones entirely. Peptides are prescribed by a licensed physician and are much safer.

Yes — stacking is common and your physician will design a protocol based on your goals. A popular stack is CJC/Ipamorelin + Follistatin for GH boost + myostatin inhibition.

Most patients notice improved recovery and sleep within 1-2 weeks. Visible muscle gains typically appear at 4-8 weeks, with significant results at 12 weeks.

No. These peptides work for anyone who trains — from beginners to competitive athletes. Your physician will adjust the protocol based on your experience level and goals.

Get started today

Ready to build muscle?

Free assessment. Licensed physicians. Money-back guarantee if not approved.

Money-back guarantee
Free shipping
Cancel anytime
HSA/FSA accepted
Start free assessment

Real results

See the difference

Drag the slider to compare before and after

After
Before
Before
After

Results shown are from peptide therapy combined with resistance training after 12 weeks. Individual results may vary. All treatments prescribed by licensed physicians.

The science

What are peptides?

Your body already makes them. We just give it more.

Think of peptides as text messages for your cells.

Peptides are short chains of amino acids — the same building blocks your body uses every day to heal injuries, burn fat, fight infection, and repair skin.

As you age, your body produces fewer of these signaling molecules. Peptide therapy replenishes them — giving your body the instructions it needs to recover faster, perform better, and look younger.

Every peptide we offer is prescribed by a licensed physician and compounded at an FDA-registered pharmacy. This isn't grey market supplements — this is real medicine.

Find your peptide
7,000+
in your body
2–50
amino acids each
40+
years of research

How do they work?

Peptides bind to specific receptors on your cells and trigger targeted responses — like telling your body to increase collagen production, release growth hormone, or reduce inflammation.

Are they safe?

When prescribed by a licensed physician and compounded at a registered pharmacy, peptides have an excellent safety profile. Your doctor monitors your treatment and adjusts as needed.

How are they different from steroids?

Peptides work WITH your body's natural systems — they signal, they don't override. Steroids replace your hormones. Peptides tell your body to produce more of its own.

The assessment process available on the [pepti] website asks a series of medical questions, and the answers provided are reviewed by an independent licensed physician affiliated with our partner physician network. The licensed providers have established exclusionary criteria, and the answers provided determine if the individual is screened out of eligibility for treatment. The licensed clinicians retain the sole decision to prescribe peptide therapy and other compounded medications to patients. Treatment may be denied at the physician's sole discretion. If a prescription is not approved, you will not be charged for the medication.

Pharmacy Providers. [pepti] is a technology platform and is not a healthcare provider, pharmacy, or prescriber. All medications offered through the platform are compounded by independent FDA-registered 503A or 503B compounding pharmacies based on a valid prescription written by a licensed physician for an individual patient. Compounded medications are not FDA-approved as products. The active pharmaceutical ingredients used by our partner pharmacies are sourced from FDA-registered facilities. Compounded medications may not undergo the same testing or quality control as commercially manufactured FDA-approved drugs.

Results vary. Results from peptide therapy and other compounded treatments vary based on individual factors, including age, weight, medical history, adherence to the prescribed protocol, lifestyle factors, and physiological response. [pepti] makes no guarantee of any specific outcome. Statements about peptide therapy and compounded medications offered through the platform have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Off-label use.Many peptides offered through the platform are prescribed for off-label use. “Off-label” means the medication is being prescribed for a use, dose, or patient population that is not specifically approved by the FDA. Off-label prescribing is legal and common in U.S. medical practice when supported by clinical experience and judgment.

Mailing & shipping. All orders ship in plain unmarked packaging via expedited delivery from our partner compounding pharmacies. Temperature-sensitive medications ship with insulated packaging and ice packs. Shipping is included at no additional cost in 45 U.S. states. We do not currently ship internationally or to APO/FPO addresses.

Not for emergencies. [pepti] is not designed for medical emergencies. If you are experiencing a medical emergency, call 911 or go to your nearest emergency room immediately. For urgent but non-emergency medical questions, contact your primary care provider or use an urgent care service.

No doctor-patient relationship with [pepti]. Your use of the platform does not create a doctor-patient relationship between you and pepti LLC A doctor-patient relationship is established only between you and the independent licensed physician who reviews your intake and prescribes your treatment. The physicians who use the platform are independent contractors and are solely responsible for the medical care they provide.

Prescription medications. All prescription products require a valid prescription from a licensed healthcare provider. By using the platform, you acknowledge that you are at least 18 years old and that the information you provide is true, accurate, current, and complete. Providing false information may result in inappropriate treatment recommendations or denial of service.

Cosmetic & wellness products.Certain products offered through [pepti] — including skincare, hair care, body care, supplements, men's grooming, sports recovery, and sexual wellness products — are cosmetic or dietary supplement products, not prescription medications. These products do not require a prescription and are not reviewed or prescribed by a physician. Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Results vary by individual. Consult your healthcare provider before starting any new supplement or topical product, especially if you are pregnant, nursing, or taking other medications.

pepti LLC · Delaware Limited Liability Company · For media or partnership inquiries, email hello@hellopepti.com. For patient support, email support@hellopepti.com. For privacy and HIPAA inquiries, email privacy@hellopepti.com.