USBioLongevity USBioLongevity Peptide enquiry

Research line

Research peptides — eleven compounds, filtered by research area

Metabolic, recovery, aesthetic and longevity research peptides, plus bacteriostatic water for reconstitution. Each entry states what it is and what it's been studied for — no more than that.

Research use only. These compounds are supplied for laboratory and research purposes. They are not intended to diagnose, treat, cure or prevent any disease, and statements on this page have not been evaluated by the FDA.

11 compounds
Metabolic

Retatrutide

An investigational peptide activating GLP-1, GIP and glucagon receptors simultaneously. Studied for appetite regulation, blood sugar control, satiety and the body's use of stored fat.

Advanced metabolic research
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Metabolic

Tirzepatide

The first dual incretin receptor agonist of its kind, mimicking two hormones involved in blood sugar regulation and appetite control. Studied for sustained weight reduction and metabolic markers.

Weight management research
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Recovery

BPC-157

A synthetic peptide derived from a protective sequence found in gastric juice. Preclinical work has examined tissue repair, angiogenesis and inflammatory response after injury. Human clinical evidence remains limited.

Injury and recovery research
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Recovery

Thymosin Beta-4

A naturally occurring peptide involved in tissue maintenance, cell migration and wound healing. Widely studied in sports medicine and regenerative contexts; many applications remain investigational.

Healing research
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Recovery

Wolverine Stack

BPC-157 and Thymosin Beta-4 together — commonly paired because they are thought to act on complementary repair pathways. The name is a marketing nickname, not a scientific term.

Comprehensive recovery research
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Recovery

IGF-1 LR3

A modified analog of naturally occurring insulin-like growth factor-1, designed for extended biological activity in research settings. The LR3 modification alters its interaction with IGF-binding proteins, making it a compound of interest for investigating sustained IGF-1 receptor signalling and anabolic cellular pathways. Research has explored its potential effects on skeletal muscle cells, protein metabolism, tissue development and recovery-related signalling. It remains an investigational research compound, and its effects and safety have not been established for general therapeutic use.

Muscle growth and recovery research
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Aesthetics

GHK-Cu

A naturally occurring copper-binding peptide that acts as a signalling molecule in tissue remodelling, collagen production and cellular renewal. Natural levels decline with age.

Healthy aging research
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Aesthetics

GLOW

A blend combining GHK-Cu for collagen and skin remodelling, BPC-157 for connective tissue and Thymosin Beta-4 for cellular repair — a multi-pathway approach to skin and recovery.

Beauty and recovery research
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Longevity

KLOW

A multi-peptide formulation bringing together complementary regenerative peptides rather than targeting a single pathway. Studied for connective tissue health, skin quality and cellular recovery.

Healthy aging research
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Wellness

PT-141 (Bremelanotide)

Activates melanocortin receptors in the central nervous system rather than acting on blood flow. Bremelanotide is FDA-approved for acquired, generalised HSDD in premenopausal women; other uses continue to be studied.

Sexual wellness research
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Supplies

Bacteriostatic Water

Sterile, non-pyrogenic water with 0.9% benzyl alcohol as a bacteriostatic preservative, allowing multiple withdrawals from one vial under proper aseptic technique. A diluent only — contains no active compound.

Mixing and preparation
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Comparison at a glance

Everything above, side by side.

CompoundCategoryCommon research areasBest for
RetatrutideMetabolicAppetite regulation, glucose control, fat metabolismAdvanced metabolic research
TirzepatideMetabolicAppetite regulation, insulin sensitivity, weight managementWeight management research
BPC-157RecoveryTissue repair, tendons, ligaments, gastrointestinalInjury and recovery research
Thymosin Beta-4RecoveryCellular repair, tissue regeneration, wound healingHealing research
Wolverine StackRecoveryConnective tissue, post-exercise recovery, inflammationComprehensive recovery research
IGF-1 LR3RecoveryCellular growth, protein synthesis, muscle development, tissue recoveryMuscle growth and recovery research
GHK-CuAestheticsCollagen synthesis, skin appearance, hair folliclesHealthy aging research
GLOWAestheticsSkin quality, tissue health, whole-body recoveryBeauty and recovery research
KLOWLongevityTissue repair, collagen, cellular communicationHealthy aging research
PT-141 (Bremelanotide)WellnessMelanocortin receptor research, sexual wellnessSexual wellness research
Bacteriostatic WaterSuppliesPeptide reconstitution and preparationMixing and preparation

Common questions

About the peptide line

Research-use terms, eligibility and returns are covered on the full FAQ.

Which research peptides does USBioLongevity supply?

Eleven compounds grouped by research area — metabolic, recovery, aesthetics, longevity and wellness — plus bacteriostatic water as a preparation supply. They include Retatrutide, Tirzepatide, BPC-157, Thymosin Beta-4, IGF-1 LR3, GHK-Cu, PT-141 and the GLOW, KLOW and Wolverine Stack blends. Each entry states what it is and what it has been studied for.

How do I request availability or documentation on a specific compound?

Use the enquiry form on this page. It goes straight to the peptide line rather than a general inbox, and most enquiries are answered within one business day with purity documentation and availability for the compound you asked about. You can ask about batch testing and presentation in the same message.

What is the difference between a single peptide and a blend such as GLOW, KLOW or the Wolverine Stack?

A blend combines compounds thought to act on complementary pathways rather than one alone. The Wolverine Stack pairs BPC-157 with Thymosin Beta-4; GLOW combines GHK-Cu, BPC-157 and TB-500; KLOW is a multi-peptide longevity formulation. Those names are marketing nicknames rather than scientific terms, and every entry is supplied for research use only.

Are any of these compounds FDA-approved medicines?

The line is supplied for laboratory and research use, not as approved medicines, and no statement on this page has been evaluated by the FDA. One active ingredient does hold an approval in a separate context: bremelanotide is FDA-approved for acquired, generalised hypoactive sexual desire disorder in premenopausal women. Other uses continue to be studied.

Peptide enquiry

Questions about a specific compound?

Ask about purity documentation, batch testing, presentation and availability. This goes straight to the peptide line — not a general inbox.

Most enquiries answered within one business day.

See our Privacy Policy and Terms & Conditions.

Research use only. These compounds are supplied for laboratory and research purposes. Enquiries reach a person, not a queue — most are answered within one business day with the documentation you asked for.

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