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Choose a brand. Every order is escrow-protected.
1072 research listings from 38 vetted brands, 276 independent lab reports. Each brand keeps its full catalogue in its own store — pick one below or filter by research area.
Arctic Labs
Arctic Labs supplies research peptides from the United States. Its 3-listing catalogue here centres on peptide blends and skin, hair & tanning. 3 listings carry an independent Janoshik HPLC report you can verify. Payment…
AUverifiedPeptides
Sydney-based research peptide supplier for Australian laboratories and research buyers, with Janoshik-tested batches. Delivery within Australia only.
Azentra Laboratories
US supplier specialising in GLP-3 Retatrutide research pens, with Janoshik analytical reports and batch verification details on its listings.
Biohack Peptides
UK-based research peptide company providing high-purity compounds for laboratory use. Biohack Peptides specialises in popular healing and growth peptides, manufactured to strict UK quality standards with third-party purity verification.
BioPepta
China-based supplier of lyophilized research peptides, with Janoshik analysis on every batch, wholesale pack options and same-day dispatch.
Core Peptides
Core Peptides supplies research peptides from the United States. Its 10-listing catalogue here centres on peptide blends and recovery & repair. Payment stays in escrow until your parcel arrives — the brand is paid…
Cyprus Peptides
EU-based research peptide supplier from Cyprus, offering a comprehensive catalogue of injectable and oral compounds produced in ISO-9001 certified GMP facilities. Every batch is third-party tested for purity and potency.
European Peptide Sciences
European Peptide Sciences supplies research peptides from the Netherlands. Its 34-listing catalogue here centres on peptide blends and growth hormone & IGF. Payment stays in escrow until your parcel arrives — the brand is…
EuropePeptide
EuropePeptide is a Netherlands-based research peptide brand with 13 listings on Stairway to Gray, strongest in peptide blends and longevity & mitochondrial. Every order is paid into escrow and released to EuropePeptide only after…
HK Peptide
HK Peptide focuses on peptide research and synthesis, supplying 110+ high-purity research peptides in 10-vial kits. Batches are third-party tested by Janoshik (HPLC purity and content) with reports published per compound.
HKTide Biotech
HKTide Biotech, based in Hong Kong, currently lists one research compound on Stairway to Gray: KLOW 80mg. Your payment is held in escrow until you confirm delivery.
HPEBIO
Research peptides direct from the manufacturer. HPEBIO combines peptide development, large-scale production and competitive wholesale pricing, and supplies its catalogue in 10-vial boxes.
Imperial Peptides
Premium Australian research peptide company providing laboratory-grade compounds with strict quality control. Imperial Peptides offers a curated selection of the most research-validated peptides, packaged and tested to the highest standards.
InnoPeptide
InnoPeptide is a Hong Kong & United States-based research peptide brand with 2 listings on Stairway to Gray, strongest in weight management and peptide blends. 2 listings carry an independent Janoshik HPLC report you…
Jinlu Peptides
Based in China, Jinlu Peptides lists 50 research compounds on Stairway to Gray, mostly in bioregulators and growth hormone & IGF. As with every brand here, your money is held in escrow until you…
JP
Established in 2015, JP is a peptide manufacturer based in Guangdong, China, supplying laboratories and institutions worldwide with batch-documented research peptides.
Kensington Biosciences
London-based research peptide supplier. Batch-verified COA documentation on every order, UK domestic stock, and tracked express delivery. UK delivery only.
Lab77 Peptides
US research peptide supplier with independently verifiable Janoshik COA on every batch. Lab77 offers an extensive research catalogue covering weight management, healing, cognitive, and longevity peptides at competitive pricing.
Lianhua Peptide Co.
Lianhua Peptide Co. is a Hangzhou-based peptide supplier focused on wholesale research and laboratory supply. The company combines China-based manufacturing with structured quality control, batch-level analytical documentation, and international fulfilment to support research organizations,…
Lilipeptide
We are your premium source for high-quality purified research peptides. We have served over 20,000 customers on Alibaba and now offer the same quality at our independent store. Over the course of many years,…
Limitless BioChem
Research peptides and compounds for European buyers, with a focus on clear specifications, quality documentation and reliable supply.
Maxed Out Compounds
Research peptide supplier from Midlothian, Virginia, with same-day dispatch, analytical testing and transparent batch documentation.
MEI-PEPTIDE
MEI-PEPTIDE supplies research peptides from China. Its 5-listing catalogue here centres on peptide blends and weight management. 5 listings carry an independent Janoshik HPLC report you can verify. Payment stays in escrow until your…
MJT Peptides
MJT Peptides, based in China, currently lists one research compound on Stairway to Gray: Retatrutide 10mg. It carries an independent Janoshik HPLC report you can verify. Your payment is held in escrow until you…
Nouveaux
Swiss-manufactured research peptides and proteins, with a focus on quality, authenticity and consistent specifications.
Peptide Express
Peptide Express supplies research peptides from the United States. Its 21-listing catalogue here centres on peptide blends and weight management. Payment stays in escrow until your parcel arrives — the brand is paid only…
Purus Peptides
Purus Peptides is a United States-based research peptide brand with 8 listings on Stairway to Gray, strongest in peptide blends and longevity & mitochondrial. 8 listings carry an independent Janoshik HPLC report you can…
SSRBIO
SSRBIO is a China-based research peptide brand with 69 listings on Stairway to Gray, strongest in bioregulators and skin, hair & tanning. Every order is paid into escrow and released to SSRBIO only after…
Sulan Bio
Sulan Bio connects advanced biological research in Suzhou BioBAY with global fulfilment from Guangzhou Baiyun. We supply research compounds and laboratory accessories with clear specifications, analytical documentation where available, and tracked, insured international delivery.…
SynTide Research
SynTide Research is a China-based research peptide brand with 12 listings on Stairway to Gray, strongest in growth hormone & IGF and peptide blends. Every order is paid into escrow and released to SynTide…
TFC Peptides
TFC Peptides (Tianjin Finder Chemical) specialises in research-grade peptides including GLP-1 agonists (tirzepatide, retatrutide, semaglutide), growth hormones, nootropics and peptide blends. Established supplier with over 170 research peptides available for dispatch worldwide.
TOP Peptide
TOP Peptide is a Xi'an, China-based research peptide brand with 2 listings on Stairway to Gray, strongest in weight management and peptide blends. 2 listings carry an independent Janoshik HPLC report you can verify.…
Uther Peptide
Uther Peptide manufactures and supplies research peptides in partnership with biomedical labs. Every batch is independently tested by Janoshik and published with a dated certificate of analysis — 250+ public test reports across 60…
UWA Biotech
Based in the United States, UWA Biotech lists 21 research compounds on Stairway to Gray, mostly in peptide blends and weight management. 20 listings carry an independent Janoshik HPLC report you can verify. As…
Vital Edge Science
Based in Australia & New Zealand, Vital Edge Science lists 14 research compounds on Stairway to Gray, mostly in peptide blends and growth hormone & IGF. 14 listings carry an independent Janoshik HPLC report…
Zhejiang Peptide Co.
Based in China, Zhejiang Peptide Co. lists 2 research compounds on Stairway to Gray, mostly in skin, hair & tanning and peptide blends. As with every brand here, your money is held in escrow…
Zhuoyan Laboratory Peptide Co.
Zhuoyan Laboratory Peptide Co., based in China, currently lists one research compound on Stairway to Gray: BPC-157 + TB-500 10mg. It carries an independent Janoshik HPLC report you can verify. Your payment is held…
Zyn Pharma
Based in the United States, Zyn Pharma lists 12 research compounds on Stairway to Gray, mostly in peptide blends and weight management. As with every brand here, your money is held in escrow until…
Same compound, two brands, one fair price check
Best price per mg for each brand, calculated live from current listings.
Prices before the escrow fee. Price per mg uses the listed strength × vials in the kit.
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Arctic Labs3 products · 3 lab-testedVisit store →AUverifiedPeptides9 products · 9 lab-testedVisit store →Azentra Laboratories1 product · 1 lab-testedVisit store →Biohack Peptides4 products · 4 lab-testedVisit store →BioPepta22 products · 20 lab-testedVisit store →Core Peptides10 productsVisit store →Cyprus Peptides93 productsVisit store →European Peptide Sciences34 productsVisit store →EuropePeptide13 productsVisit store →HK Peptide111 products · 53 lab-testedVisit store →HKTide Biotech1 productVisit store →HPEBIO20 products · 19 lab-testedVisit store →Imperial Peptides20 products · 15 lab-testedVisit store →InnoPeptide2 products · 2 lab-testedVisit store →Jinlu Peptides50 productsVisit store →JP8 products · 8 lab-testedVisit store →Kensington Biosciences26 productsVisit store →Lab77 Peptides33 products · 18 lab-testedVisit store →Lianhua Peptide Co.37 productsVisit store →Lilipeptide49 productsVisit store →Limitless BioChem2 products · 2 lab-testedVisit store →Maxed Out Compounds11 products · 9 lab-testedVisit store →MEI-PEPTIDE5 products · 5 lab-testedVisit store →MJT Peptides1 product · 1 lab-testedVisit store →Nouveaux2 products · 1 lab-testedVisit store →Peptide Express21 productsVisit store →Purus Peptides8 products · 8 lab-testedVisit store →SSRBIO69 productsVisit store →Sulan Bio46 products · 12 lab-testedVisit store →SynTide Research12 productsVisit store →TFC Peptides192 productsVisit store →TOP Peptide2 products · 2 lab-testedVisit store →Uther Peptide105 products · 87 lab-testedVisit store →UWA Biotech21 products · 20 lab-testedVisit store →Vital Edge Science14 products · 14 lab-testedVisit store →Zhejiang Peptide Co.2 productsVisit store →Zhuoyan Laboratory Peptide Co.1 product · 1 lab-testedVisit store →Zyn Pharma12 productsVisit store →Compare all brands →All Categories
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Semax 10mg (10 Vials / Kit)
$51.00 $0.51/mg
Selank 10mg (10 Vials / Kit)
$69.30 $0.69/mgFilter Products
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Stairway to Gray lists research peptides for laboratory and educational use only. Nothing on this site is medical advice or intended for human consumption.
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