sthrn labs is launching soon. Browse the catalog, review our COAs, and inquire to order.

sthrn labs research vials — 99%+ purity, third-party tested

Proven. Pure. Precise.

Premium research peptides with a Certificate of Analysis with every order. Lyophilized in the USA, verified by independent HPLC.

COA with every order
99%+ purity
Same-day dispatch before 2pm ET
Lyophilized in USA
Navigate by system

Shop by shade.

Every compound belongs to a family, and every family owns one shade. Six systems, one spectrum — pick a shade to explore its compounds.

Appetite, glucose, and weight-pathway peptides for metabolic research.

GLP-3RGLP-2TAOD-9604
Explore Metabolics

Compounds that stimulate the body's own growth-hormone release.

IpamorelinSermorelinTesamorelin
Explore GH Secretagogues

Repair, gut, and connective-tissue support for recovery studies.

BPC-157TB-500KPV
Explore Recovery

Nootropic and neuroprotective peptides for cognition research.

SemaxSelank
Explore Cognitive

Dermal, pigment, and collagen-pathway compounds for aesthetic research.

GHK-CuMelanotan-IIGLOW Blend
Explore Aesthetics

Cellular-aging and telomere-focused peptides for longevity research.

EpitalonNAD+SS-31
Explore Longevity

Featured compounds.

Research peptides, third-party identity tested.

The sthrn standard

Why researchers choose sthrn.

Six commitments behind every vial — from independent verification to discreet, insured delivery.

View COAs

Verified by an outside lab

Each lot screened by an accredited third party: HPLC-MS for purity, MALDI for identity, and endotoxin tested before it ever ships.

Out the door same day

Order before 2pm ET and it leaves the lab that day, tracked, insured, and in your hands in 2-3 days.

Covered end to end

Vial cracked in transit or wrong item arrived? Let us know within 72 hours and we'll reship at no charge. Every order fully insured.

Lyophilized on U.S. soil

Freeze-dried in GMP-compliant American facilities. Fully domestic chain of custody. Nothing imported and relabeled.

Discreet by default

Plain, unmarked outer box with a neutral descriptor. Zero identifying marks inside or out. Your order is your business.

Expert support

Real people behind every email. Order questions, product questions, shipping questions. We actually answer, and we answer fast.

Support

Frequently asked questions.

Everything you need to know about peptide research.

Still have questions?
Contact us →

Every compound is synthesized to 99%+ identity purity and verified by independent third-party HPLC and mass-spectrometry analysis. A Certificate of Analysis ships with every order.

A COA is the lab report documenting a batch's identity, purity, and mass. It lists the analytical method (HPLC/MS), the measured purity percentage, and the testing facility. We include it free with every order.

Store the sealed, lyophilized vial in a freezer at -20°C for long-term stability. Once reconstituted, refrigerate at 2–8°C and use within the documented window for that compound.

Properly stored lyophilized peptides remain stable for 24+ months. Reconstituted solutions are typically stable for several weeks when refrigerated, depending on the compound.

Orders placed before 2pm ET ship the same business day; orders after 2pm ship the next business day, as fast as next-day anywhere in the U.S. Every order includes free shipment protection.

We're a U.S.-based research-peptide provider with in-house manufacturing and rigorous third-party testing. Every order ships with a COA, we give you the proof rather than asking for trust.

No. All products are sold strictly for laboratory and research use only. They are not intended to diagnose, treat, cure, or prevent any disease, and are not for human or veterinary use.

Due to the nature of research compounds, we're unable to accept returns once an order has shipped. If your order arrives damaged, lost, or incorrect, contact us and we'll make it right. Every order is covered by free shipment protection.

The standard for research peptides.

Every compound documented. Every order protected.

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