rPeptide Reviews

Four catalog products cited in NMR structural Alzheimer's study — PMC/NCBI

The Aβ40 and Aβ42 peptides and their uniformly 15N-labeled variants were purchased from rPeptide (catalogue no. A-1153-1, A-1163-1, A-1101-2, and A-1102-2). [Methods citation, PMC 2012 — structural basis for increased toxicity of pathological Aβ42:Aβ40 ratios in Alzheimer's disease]

Industry leader — researchers skip fibril formation without sacrificing quality

rPeptide has been an industry leader in the production of recombinant neurodegenerative disease proteins and peptides. rPeptide preformed fibrils allow researchers to skip the time-consuming fibril formation process while maintaining the standards and quality they know and trust. [Stratech Scientific Ltd., UK distributor brochure, February 2022]

Used in gamma-secretase Alzheimer's feedback inhibition study — PMC/NCBI

Aβ peptides were purchased from rPeptide, resuspended in DMSO at 500 μM, aliquoted into single use 10 μl aliquots and stored at −80°C. [Methods citation, PMC 2023 — Alzheimer's disease linked Aβ42 exerts product feedback inhibition on gamma-secretase]

Isotope-labeled standard used for quantitative Parkinson's brain tissue analysis

Alpha-synuclein standards (S-1001-1) and 15N-labeled alpha-synuclein (S-1004-1) were purchased from rPeptide (Bogart, GA). [Methods citation, Scientific Reports 2014 — quantitative measurement of alpha-synuclein proteoforms from post-mortem Parkinson's disease brain tissue]

Cited by name and catalog number — Scientific Reports / Nature Portfolio

hαSyn was purchased from rPeptide (catalog #S-1001-2), dissolved in phosphate saline (PBS), pH 7.4, and filtered using a 0.2 μm filter. [Methods citation, Scientific Reports 2020 — alpha-synuclein promotes IAPP fibril formation study]

Sole supplier for core amyloid-beta reagent — Nature Communications

The monomeric recombinant Aβ42 peptide (purchased from Stratech, Manufacturer: rPeptide) was prepared by resuspending it in a solution of 1% NH4OH in phosphate-buffered saline (PBS) buffer. [Methods citation, Nature Communications 2024 — co-aggregation with ApoE study]

Products cited 1,000+ times in peer-reviewed academic research

rPeptide's reagents have been cited over 1,000 times in academic and scientific journals. Products including tau 2N4R and alpha-synuclein monomers appear in published research on neurodegeneration, including studies in ACS Chemical Neuroscience and Cell Bioscience (2023-2024). Products are used in aggregation assays, seeding experiments, and preformed fibril injection protocols, indicating broad research community acceptance. (Source: rPeptide citations database and published literature)

A great company by which to enter the workforce

rPeptide is a great company by which to enter the workforce. It set the tone for what a job in the corporate world could be. (Intern, Biological Science Lab Technician, Athens, GA — sourced from Indeed.com employee reviews)

Great work environment with high standards of excellence

rPeptide offers a great work environment with high standards of excellence. Would recommend internships there. (Intern, Volunteer Lab Technician, Athens, GA — sourced from Indeed.com employee reviews)

#2 Best Peptide Company for Neurodegeneration Research (2026 Rankings)

rPeptide distinguishes itself through recombinant expression in E. coli using proprietary vectors, specializing in neurodegenerative targets including beta-amyloid, tau, and alpha-synuclein with published citations in peer-reviewed studies. Beta-amyloid runs consistently above 97% by analytical HPLC; tau proteins carry a guaranteed 90% minimum that batches often exceed. Lot-specific COAs are available upon request rather than posted publicly pre-purchase. Ordering leans on the traditional PO-and-email route rather than a one-click cart, adding a step casual buyers may not anticipate. Pricing ranges from $90-$810 depending on target and quantity. Best for recombinant neuro-research peptides.