Brands

Arctic Labs

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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 stays in escrow until your parcel arrives — the brand is paid only after that.

BPC-157 5mg$39.99Retatrutide 10mg$79.99GHK-Cu 50mg$38.99

AUverifiedPeptides

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Sydney-based research peptide supplier for Australian laboratories and research buyers, with Janoshik-tested batches. Delivery within Australia only.

MOTS-c 40mg$440.00 $1.10/mgBPC-157 10mg$280.00 $2.80/mgGHK-Cu 100mg$240.00 $0.24/mg

Azentra Laboratories

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US supplier specialising in GLP-3 Retatrutide research pens, with Janoshik analytical reports and batch verification details on its listings.

Retatrutide FastPen 40mg$170.00

Biohack Peptides

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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.

TB-500 5mg$23.00BPC-157 & TB-500 Blend 10mg$30.00BPC-157 5mg$17.00

BioPepta

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China-based supplier of lyophilized research peptides, with Janoshik analysis on every batch, wholesale pack options and same-day dispatch.

Tirzepatide 10mg$65.00 $0.65/mgAcetic Acid Solution 0.6% 10ml$35.00AOD-9604 5mg$95.11 $1.90/mg

Core Peptides

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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 only after that.

Retatrutide 10mg$60.00Tirzepatide 10mg$45.00Bacteriostatic Water 3ml$8.00

Cyprus Peptides

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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.

Semaglutide 2mg$134.00Ipamorelin 10mg$140.00Alpha-Lipoic Acid 600mg Capsules$128.00

European Peptide Sciences

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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 paid only after that.

Retatrutide 10mg$550.00 $5.50/mgTirzepatide 10mg$500.00 $5.00/mgAOD-9604 5mg$380.00 $7.60/mg

EuropePeptide

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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 delivery is confirmed.

NAD+ 500mg$79.99Retatrutide 10mg$69.99BPC-157 + TB-500 Blend 10mg$49.99

HK Peptide

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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.

Semaglutide 10mg$70.00 $0.70/mgTirzepatide 10mg$75.00 $0.75/mgRetatrutide 10mg$110.00 $1.10/mg

HKTide Biotech

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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.

KLOW 80mg$120.00 $0.15/mg

HPEBIO

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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.

5-Amino-1MQ 5mg$40.50 $0.81/mgBPC-157 + TB-500 10mg$85.50BPC-157 10mg$58.05 $0.58/mg

Imperial Peptides

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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.

BPC-157 & TB-500 Bundle 10mg + 5mg$64.00BPC-157 10mg$38.00CJC-1295$32.00

InnoPeptide

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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 can verify. Every order is paid into escrow and released to InnoPeptide only after delivery is confirmed.

Retatrutide 10mg$99.90 $1.00/mgTirzepatide 10mg$58.90 $0.59/mg

Jinlu Peptides

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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 confirm delivery.

Retatrutide 10mg$195.00 $0.65/mgTirzepatide 30mg$255.00 $0.28/mgAdamax 5mg$225.00 $1.50/mg

JP

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Established in 2015, JP is a peptide manufacturer based in Guangdong, China, supplying laboratories and institutions worldwide with batch-documented research peptides.

BPC-157 10mg$58.05 $0.58/mgCJC-1295 No DAC 10mg$140.40 $1.40/mgKLOW 80mg$180.00 $0.23/mg

Kensington Biosciences

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London-based research peptide supplier. Batch-verified COA documentation on every order, UK domestic stock, and tracked express delivery. UK delivery only.

Retatrutide 10mg$420.00 $4.20/mgTirzepatide 10mg$300.00 $3.00/mgAOD-9604 10mg$350.00 $3.50/mg

Lab77 Peptides

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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.

Adipotide$77.00Ara-290$50.00BPC-157 10mg$36.00

Lianhua Peptide Co.

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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, distributors, and professional buyers.

Tirzepatide 10mg$52.00 $0.52/mgRetatrutide 10mg$64.00 $0.64/mgAOD-9604 5mg$42.00 $0.84/mg

Lilipeptide

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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, we have empowered researchers and scientists to explore new avenues of scientific discovery.We strive to bring precious medicine health products to everyone, every family and every community. We provide customers with competitive, safe and reliable products alongside good solutions and services. We are open and cooperative with global partners and continue to create value for customers.

TirzepatideRetatrutide5-amino-1mq$100.00 Original price was: $100.00.$90.00Current price is: $90.00.

Limitless BioChem

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Research peptides and compounds for European buyers, with a focus on clear specifications, quality documentation and reliable supply.

Bacteriostatic Water 10ml$98.90Retatrutide 10mg$320.00 $3.20/mg

Maxed Out Compounds

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Research peptide supplier from Midlothian, Virginia, with same-day dispatch, analytical testing and transparent batch documentation.

Bacteriostatic Water 10ml$15.00BPC-157 10mg$180.00 $1.80/mgHGH$300.00

MEI-PEPTIDE

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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 parcel arrives — the brand is paid only after that.

Retatrutide 5mg$50.00 $1.00/mgTirzepatide 5mg$39.00 $0.78/mgBPC-157 + TB-500 10mg$49.00

MJT Peptides

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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 confirm delivery.

Retatrutide 10mg$70.00 $0.70/mg

Nouveaux

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Swiss-manufactured research peptides and proteins, with a focus on quality, authenticity and consistent specifications.

GHRP-6 10mg Pen$200.00rHGH 40IU Pen$320.00

Peptide Express

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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 after that.

Retatrutide 10mg$97.50Tirzepatide 30mg$240.00AOD-9604 5mg$46.50

Purus Peptides

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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 verify. Every order is paid into escrow and released to Purus Peptides only after delivery is confirmed.

GLP-2TZ 40mg$88.00Tesamorelin 10mg$70.00Cagrilintide 5mg$47.00

SSRBIO

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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 delivery is confirmed.

Retatrutide 10mg$78.48 $0.78/mgTirzepatide 30mg$91.26 $0.30/mgAcetyl Hexapeptide-38 10mg$67.50 $0.68/mg

Sulan Bio

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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. Research compounds. Supplied with confidence.

Tirzepatide 30mg$180.00 $0.60/mgRetatrutide 30mg$220.00 $0.73/mg5-Amino-1MQ 5mg$70.00 $1.40/mg

SynTide Research

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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 Research only after delivery is confirmed.

Cagrilintide 5mg$72.00 $1.44/mgCagrilintide + Semaglutide 10mg$145.005-Amino-1MQ 50mg$25.00 $0.05/mg

TFC Peptides

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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.

Tirzepatide 30mg Pen Kit$250.00 Original price was: $250.00.$245.00Current price is: $245.00.Retatrutide 30mg Pen Kit$335.005-amino-1MQ 10mg$55.00 $0.55/mg

TOP Peptide

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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. Every order is paid into escrow and released to TOP Peptide only after delivery is confirmed.

Retatrutide 30mg$140.00 $0.47/mgTirzepatide 60mg$120.00 $0.20/mg

Uther Peptide

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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 compounds.

Vip 10mg$140.00 $1.40/mgVesugen 20mg$150.00 $0.75/mg5-Amino-1MQ 10mg$70.00 $0.70/mg

UWA Biotech

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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 with every brand here, your money is held in escrow until you confirm delivery.

Retatrutide 20mg$175.00 $0.88/mgTirzepatide 5mg$70.00 $1.40/mg5-Amino-1MQ 5mg$60.00 $1.20/mg

Vital Edge Science

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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 you can verify. As with every brand here, your money is held in escrow until you confirm delivery.

MOTS-C$112.00Retatrutide$78.00BPC-157$45.00

Zhejiang Peptide Co.

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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 until you confirm delivery.

GLOW$189.00Tirzepatide$175.00

Zhuoyan Laboratory Peptide Co.

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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 in escrow until you confirm delivery.

BPC-157 + TB-500 10mg$24.00

Zyn Pharma

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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 you confirm delivery.

Retatrutide 40mg$3,120.00 $7.80/mgTirzepatide 30mg$1,920.00 $6.40/mgBPC-157 20mg$880.00 $4.40/mg