The Future of Research Peptides
99%+ purity, third-party tested, with public COAs. For laboratory research use only.
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Why Choose Ascend?
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Pick your compound and check out in a few clicks.
Same Day Shipping
Orders placed before 2PM EST ship the same business day.
24/7 Support Team
Questions about a lot, a certificate or an order in transit reach a real person.
Featured Compounds
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Research Categories
Browse the catalogue by research area
Metabolic Pathway
Incretin and metabolic-pathway reference compounds for in-vitro receptor-binding assays
Wound-Assay & Matrix
Reference compounds for in-vitro wound-closure, angiogenesis, and extracellular-matrix assays
GH-Axis Receptor
GHRH and secretagogue reference standards for in-vitro receptor-binding studies
Cellular & Senescence
Reference compounds for senescence, telomere-biology, and mitochondrial in-vitro models
Neuro Receptor
Neuropeptide reference standards for receptor-binding and neuro-assay research models
Cytokine Signaling
Reference compounds for cytokine-signaling and inflammatory-pathway in-vitro assays
Neuroendocrine Receptor
Melanocortin and HPA-axis reference standards for in-vitro receptor and signaling studies
Immune Assay
Thymic and immune-pathway reference compounds for in-vitro immunomodulation assays
Circadian Biology
Reference compounds for melatonergic and circadian-pathway in-vitro receptor studies
Frequently
Asked
Questions
Everything on purity, paperwork, shipping and the research-use-only terms. Still stuck? Read the full FAQ.
What does research use only mean?
Every compound we supply is a reference standard intended strictly for in-vitro laboratory research. It is not a drug or a supplement, and it is not for human or veterinary use, nor for diagnostic or therapeutic use.
How is purity verified?
Every lot is assayed by HPLC at an independent, accredited third-party laboratory. We publish the resulting Certificate of Analysis and link it to the lot number printed on the vial.
Where do I find the Certificate of Analysis?
Every lot has a public, batch-linked COA. Browse them all on the COA page, or open any product page and use the COA tab for that specific compound.
How quickly do orders ship?
Orders placed before 2PM EST ship the same business day. Shipments are cold-packed where required and fully tracked.
Do you ship internationally?
We currently ship within the United States. Requests from institutional buyers outside the US are handled case by case, so contact us before ordering.
Ready to Start
Your Research?
Browse the complete catalog of third-party verified, lyophilized research compounds. Orders before 2PM EST ship same day.