Recovery
BPC-157 5mg
The most requested repair peptide in the range. A synthetic pentadecapeptide studied for soft-tissue and gut-lining repair signalling.
$150
Research-grade compounds
Precision peptides. Compounded in the USA.
Not an overseas lab. State-licensed US compounding pharmacies, a physician network with a medical director, and a lot certificate on every vial — shipped the same day.
USACompounded, state-licensed
Same dayShipping before 14:00 ET
57Research compounds
Compounded in the USAState-licensed pharmacies
Independently lab-testedHPLC + LC-MS, every lot
Peptides have been featured in
Compounded in the United States
Every compound is prepared by a state-licensed US compounding pharmacy under USP sterile standards. Nothing is imported, repackaged or drop-shipped.
Not an overseas lab
Physician network + medical director
A network of licensed physicians and a medical director oversee sourcing, quality and release. Real clinicians, not a checkbox.
Clinically overseen
COA on every vial
Third-party HPLC purity and LC-MS identity on every lot, archived to the lot ID printed on your vial. Pull it before you order.
Lot-certified
Ships the same day
Orders before 14:00 ET leave that day, cold-packed, in plain packaging, to all 50 states. Delivery protection included.
US fulfillment
Why MaxSpan
Real peptides. Not made in a lab overseas.
Most peptides sold online arrive from a facility nobody will name, with paperwork that belongs to a different batch. MaxSpan exists because we wanted to buy from the version of this company that doesn’t do that.
- State-licensed US compounding pharmacies. Inspected, USP-compliant, on record.
- A medical director and physician network who sign off on sourcing and release.
- Independent HPLC + LC-MS on every lot, with the certificate in the carton.
- Same-day US shipping, cold-packed, plain packaging, tracked.
Browse by goal
Choose your path to results.
Pick what you actually want to happen. Every compound behind each path is lot-tested, certified, and ready to ship.
Weight LossGLP-1s and metabolic peptides for fat loss and body composition
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RecoverySoft-tissue repair and post-training recovery
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Longevity & Anti-AgingCellular repair, mitochondrial support and healthy aging
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Energy & VitalityMitochondrial and metabolic support for daily drive
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Growth HormoneSecretagogues for muscle, sleep and metabolism
Explore
AestheticSkin, hair and connective-tissue peptides
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Sexual HealthLibido, performance and hormonal balance
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Immune & CognitiveImmune modulation, focus and neuroprotection
Explore
Top sellers
Our most popular peptides.
Ranked by repeat orders. Every vial ships with its lot certificate in the carton.
Weight Loss
MOTS-C 10mg
A mitochondrial-derived peptide involved in metabolic signalling and insulin sensitivity. Commonly stacked with a GLP-1 rather than run alone.
$142
Recovery
GLOW
The recovery stack with GHK-Cu added for skin and collagen signalling. This is the one people run when they want the repair work to show.
$350
View product
bpc-157 / ghk-cu / tb-500 · 3 ml
Recovery
KLOW
GLOW with KPV added for inflammatory signalling. The most complete single-vial blend in the catalogue.
$395
View product
bpc-157 / ghk-cu / tb-500 / kpv · 3 ml
Longevity & Anti-Aging
NAD+ 100mg
Lyophilised nicotinamide adenine dinucleotide. The entry point for cellular-energy work and the compound most people start longevity with.
from$170
Weight Loss
Semaglutide 15mg
A GLP-1 receptor agonist and the most studied compound in this category. Lyophilised for shelf stability, reconstituted at home.
$600
Weight Loss
Retatrutide 5mg
A triple agonist acting at GIP, GLP-1 and glucagon receptors. The newest compound in the metabolic category and the one people ask about most.
from$295
Recovery
TB-500 5mg
A thymosin beta-4 fragment studied for cell migration and tissue remodelling. Almost always run with BPC-157 rather than solo.
$150
Peptide packages
Choose your path to peak performance.
Curated stacks for the goals that matter most, priced below the sum of the parts.
3 top peptides for men
Elite Package
Essential support for performance, recovery and vitality.
$360/ month
$440 total value
1. Growth Hormone
Tesamorelin 5mg
A GHRH analogue with the most clinical data behind it in this category, particularly around visceral adipose tissue..
- GHRH analogue
- Best-documented in category
- 5 mg lyophilised
- Pentadecapeptide
- Soft-tissue repair signalling
- 5 mg lyophilised
- Selective GH secretagogue
- Minimal cortisol effect
- 10 mg lyophilised
5 top peptides for men
Supreme Package
The complete protocol for total optimisation.
$565/ month
$710 total value
1. Growth Hormone
Tesamorelin 5mg
A GHRH analogue with the most clinical data behind it in this category, particularly around visceral adipose tissue..
- GHRH analogue
- Best-documented in category
- 5 mg lyophilised
- Pentadecapeptide
- Soft-tissue repair signalling
- 5 mg lyophilised
- Selective GH secretagogue
- Minimal cortisol effect
- 10 mg lyophilised
- Mod GRF (1-29)
- Pulsatile GH release
- Pairs with ipamorelin
5. Sexual Health
PT-141 10mg
A melanocortin receptor agonist that works centrally on desire pathways rather than on blood flow.
- Melanocortin agonist
- Central mechanism
- 10 mg lyophilised
3 top peptides for women
Elite Package
Skin, recovery and cellular support in one stack.
$530/ month
$650 total value
- BPC-157 + GHK-Cu + TB-500
- Three peptides, one vial
- Collagen signalling
2. Aesthetic
GHK-Cu 50mg
A copper peptide studied for collagen synthesis, skin remodelling and hair follicle signalling.
- Copper tripeptide
- Skin and hair signalling
- 50 mg lyophilised
- Cellular coenzyme
- Mitochondrial support
- 100 mg lyophilised
5 top peptides for women
Supreme Package
The complete stack for skin, energy and longevity.
$750/ month
$939 total value
- BPC-157 + GHK-Cu + TB-500
- Three peptides, one vial
- Collagen signalling
2. Aesthetic
GHK-Cu 50mg
A copper peptide studied for collagen synthesis, skin remodelling and hair follicle signalling.
- Copper tripeptide
- Skin and hair signalling
- 50 mg lyophilised
- Cellular coenzyme
- Mitochondrial support
- 100 mg lyophilised
- ACTH(4-10) analogue
- BDNF research
- 11 mg lyophilised
5. Longevity & Anti-Aging
Glutathione 200mg/mL
The body's primary intracellular antioxidant, supplied ready to use at 200 mg/mL..
- Primary antioxidant
- Ready-to-use solution
- 2000 mg per vial
Quality & testing
Anyone can print a number. We archive the trace.
Every lot is assayed by an independent laboratory — RP-HPLC for purity, LC-MS for identity — and the certificate is filed against the lot ID printed on your vial. Pull it before you order.
Third-party testedEVERY LOT, NO EXCEPTIONS
≥98% release thresholdRP-HPLC, UV 214 NM
Certificate in every cartonARCHIVED TO LOT ID
Same-day fulfillmentORDERS BEFORE 14:00 ET
How it works
Four steps. Two of them are yours.
01
Choose your path
Pick the goal you're actually chasing, or go straight to the catalogue.
02
Check the certificate
Every compound has a lot ID. Pull its HPLC and LC-MS data before you order.
03
Ships the same day
Orders before 14:00 ET leave that day, cold-packed, in plain packaging.
04
Refill before you run out
Packages bill monthly and ship on the compound's own cadence.
Learning center
All articles
Read before you buy.
Semaglutide vs Tirzepatide vs Retatrutide
Three GLP-1s, three receptor stories. What actually separates them.
ReadLyophilised vs liquid: reconstitution done right
Water volumes, the arithmetic, and the 28-day window most people miss.
ReadHow to read a certificate of analysis
The five checks that separate a real COA from a printed number.
ReadSubscribe for 10% off your first order.
Plus restock alerts and new lot certificates. No marketing, no volume.
Research Use Only. All products sold by MaxSpan Peptides are supplied strictly for in vitro laboratory research by qualified professionals aged 21 or older. They are not intended for human or animal consumption, clinical use, diagnostic use, veterinary application, or any therapeutic purpose. Statements made on this website have not been evaluated by the U.S. Food and Drug Administration. MaxSpan Peptides is a chemical supplier and is not a compounding pharmacy as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, nor an outsourcing facility as defined under Section 503B.