In Stock
LL-37 vial
Immune
LL-37

LL-37

Antimicrobial & immune peptide.

Starting at
$249/mo
Any 1 standard vial
Billed in 90-day (3-month) increments
Get Started

*All products are purchased in 90-day (3-month) increments. Price shown reflects the monthly cost of a 90-day supply and includes medication only, if prescribed. An active Summit Membership is required ($39 first month, then $99/mo). Membership does not guarantee a prescription.

  • Antimicrobial activity against bacteria and fungi
  • Supports immune modulation
  • Promotes wound and tissue healing
  • May support gut barrier integrity
Compounded in the U.S.A

Mix & Save

Add LL-37 to a Duo or Trio for more value.

All plans are purchased in 90-day (3-month) increments.

Peptide Duo
$499/mo
2 standard vials
Peptide Trio
$699/mo
3 standard vials

Hit Your Health Goals Safely & Affordably in 3 Simple Steps

Get Started
Step 1

Submit Your Application and Meet With a Doctor

Complete a quick form and meet with a licensed medical provider 100% online. They'll determine if a personalized treatment plan is right for you.

Doctor consultation
Step 2

Get Your Medication Delivered to Your Door

If eligible, your custom prescription ships directly to you, fast and free, in temperature-controlled packaging with everything you need.

Summit medication delivery box
Step 3

Make Progress With 24/7 Support and Ongoing Care

We're with you every step of the way, with regular check-ins and on-demand medical support to keep you on track.

Telehealth support

Real People, Real Results, Real Medication

Verified Customer
I tore my rotator cuff and was told surgery was my only option. After 6 weeks on BPC-157, my range of motion was back to 95%. My ortho was shocked. I'm back in the gym and stronger than before.
D
Derek
Back to training in 4 weeks
Verified Customer
I had chronic Achilles pain that nothing fixed — PT, cortisone, rest. Within 3 weeks of peptide therapy, the daily stiffness was gone. I ran my first 5K in two years last month.
S
Sarah
Healed a 2-year tendon issue

Patient stories reflect individual outcomes. Results vary based on physiology, adherence, and clinical context. Not all patients qualify for every protocol.

The Science

The Science Of Regenerative Peptides

Recovery peptides modulate growth factor signaling, angiogenesis, and extracellular matrix remodeling — the upstream biology of soft tissue repair. Protocols are designed to support training adaptation, post-injury healing, and inflammatory balance.

Angiogenesis & Tissue Perfusion

BPC-157 and related peptides upregulate VEGF expression and nitric oxide signaling, increasing capillary formation in tendon, ligament, and gut tissue.

Collagen Synthesis

TB-500 (thymosin beta-4) promotes actin polymerization and fibroblast migration, accelerating organized collagen deposition during repair.

Inflammatory Modulation

Down-regulates pro-inflammatory cytokines (TNF-α, IL-6) while preserving the physiologic signaling required for adaptation.

Clinical Evidence
↑ VEGF
Demonstrated angiogenic response in tendon models
J Appl Physiol 2011
↑ Fibroblast
Migration and collagen organization with TB-4
Ann NY Acad Sci 2010
↓ TNF-α
Reduced inflammatory cytokine expression
J Orthop Res 2018
References & Further Reading
  • Chang CH et al. The promoting effect of pentadecapeptide BPC 157 on tendon healing. J Appl Physiol 2011;110:774-780.
  • Goldstein AL et al. Thymosin β4: actin-sequestering protein moonlights to repair injured tissues. Ann NY Acad Sci 2010;1194:130-135.

Cited research is provided for educational context. Clinical outcomes vary by individual and depend on diagnosis, dosing, adherence, and physician oversight.

Physician-Led Care, Personalized to You

Every protocol is reviewed by a licensed US physician. Your journey is unique, and Summit is here to support you with dosing, monitoring, and adjustments every step of the way toward real progress.

US-licensed physicians review every intake

Begin Your Medically-Led Journey Today

  • 1-on-1 guidance from US-based health experts
  • No-cost consultations for continuous optimization
  • Fast & reliable delivery with 24/7 support
Get Started
LL-37 vial

Learn More About LL-37

How does the consultation work?

Complete a 5-minute clinical intake. A licensed physician reviews your health profile within 24 hours and prescribes when appropriate.

Is this US-compounded?

Yes. All medications are compounded at FDA-regulated 503A and 503B pharmacies inside the United States.

Can I cancel anytime?

Yes. There are no long-term contracts. Pause or cancel from your account at any time.

Do you ship cold-chain?

Every order ships overnight in insulated, temperature-controlled packaging with syringes and alcohol swabs included.