• English
  • Sign In
  • Contact Us
Peptide Services
Peptide Synthesis Services top banner

Peptide Synthesis Services

Get Your Peptides from
the Trusted Leader in Custom Peptide Synthesis

GenScript has been providing reliable custom peptide synthesis services for 10,000+ scientists worldwide for 17+ years. With our proprietary microwave-assisted PepPower™ peptide synthesis platform, GenScript is now able to offer high-quality peptides with 100% guaranteed quantity at industry-leading speed, as fast as 5 days, to help expedite your research. Also for a limited time we are offering a purity upgrade from lower to higher at no extra charge to help you obtain better results while saving you money.

more than 98% Success Rate

> 98% Success Rate

Industry-leading speed: As fast as 5 BDs

Industry-leading speed:
As fast as 5 BDs

17+ Years Peptide Synthesis Experience

17+ Years
Peptide Synthesis Experience

mg to kg

mg to kg
Crude to >98%

Up to 200 AA

Up to 200 AA

300+ modification

300+ modification

Package Options

Custom Peptide Synthesis

Fast Peptide Synthesis 3 Rush Peptide Synthesis 3 Regular Peptide Synthesis 3
Starting turnaround time 1
(Business Days)
6 5 10
Sequence length Up to 25 AA Up to 200 AA
Purity Free Upgrade! ≥70% to ≥98% Crude Crude to ≥98%
Guaranteed Quantity 2 Up to 100 mg mg to kg
Solubility Test Service Free
TFA Removal Service Standard Service Standard & Guaranteed Service
Modifications 30+ modifications
List of modifications for fast and rush services
300+ modifications
List of modifications for custom peptide synthesis service
  • Indicated delivery times are for standard sequences only. Difficult sequences or sequences with multiple modifications may require additional time.
  • Guaranteed quantity is valid for Regular and Express Peptide Synthesis Services on orders with less than 20 mg in quantity.
  • Custom Peptide service includes Regular and Express Peptide services. Express Peptide Synthesis Service includes Fast and Rush Peptide Synthesis Services. Express peptide synthesis service is limited for non-complex sequences and modifications, please contact us or request a quote.

Peptide Library

Peptide Library Upgraded!
Peptide Library
Crude Micro-scale
Peptide Library
Purified Micro-scale
Peptide Library
Turnaround Time 1
(Business Days)
9 - 17 15 - 20 15 - 20 15 - 20
Sequence Length 5 - 15 AA 16 - 25 AA 5 - 25 AA 5 - 20 AA
Purity Crude ≥70% to ≥98% Crude >70%
Quantity 1 – 20 mg 1 – 9 mg 3 0.2 - 0.5 mg
Minimum order size 24 peptides
Deliverable format 2 Lyophilized peptides in 96-well plate or individual well-labelled vials Lyophilized or liquid (suspended in 50% (v/v) acetonitrile/water containing 0.05% TFA) in Thermo Scientific Matrix 96-tube plates
Quality documents 4 COA & MS only
COA, HPLC & MS for each peptide
COA, HPLC & MS for each peptide COA, HPLC & MS for each peptide
Modifications Comprehensive: Biotin, Fluorescent Dyes, Phosphorylation, Methylation, Acylation, Acetylation, Unnatural Amino Acids, and many more Amidation, Acetylation, Biotin, FITC-Ahx, Isotope Labeling on K/R, Arg (13C6, 15N4), Lys (13C6, 15N2) and many more
  • Turnaround time may be longer for orders over 60 peptides, difficult modifications, TFA removal, or if analytical HPLC is requested.
  • Automated peptide pooling available upon request.
  • For quantity that is over 4 mg, please contact our technical account manager.
  • Additional services (TFA removal, analytical HPLC, etc.) are available at additional cost.

The GenScript Edge

Peptide Library Service

Peptide Library

Large variety of peptides for target screening, immunotherapy, vaccine development, drug discovery and proteomics.

Learn More »

NeoAntigen Peptide Service

NeoAntigen Peptide

From functional screening of neoantigen candidates for TCR therapy to clinical stage vaccine immunogenicity testing.

Learn More »

Large Scale Peptide Synthesis Service

Large Scale Peptide Synthesis Service

Perfect for peptide drug & Active Pharmaceutical Ingredient (API), cosmetic peptides, and feed additive development.

Learn More »

Deliverables & Premium Services


Your peptides will arrive as lyophilized powder with following features:

Premium Services


GenScript peptide synthesis gives us amazingly fast turnaround time and very competitive prices. Their peptide quality has been excellent. Our experience with them has been so positive that we have essentially shut down our internal peptide synthesis efforts and now use them for all of our custom peptides.

Robert Bao, Principal Investigator,
PACT Pharma Inc., USA

Genscript revision survey
Survey and win
$50 gift card!