Proven Protein Expertise.
Save 22% On Select Proteins.
Use Promo Code: PROVEN22. Valid in North America and Europe. Terms and Conditions Apply.
Whether you’re exploring biological pathways, identifying new drug targets, developing advanced cell models, or advancing cell-based therapies, finding the right protein is critical to your success.
High purity, lot-to-lot consistency, and rigorous bioactivity testing help ensure the reliable performance needed for your research. Designed to support reproducible results, these proteins provide the quality and functionality you depend on.
Explore a broad portfolio of recombinant proteins, growth factors, cytokines, and enzymes designed to support reliable results across diverse research applications. Find the proteins you need to advance your research and save 22% on qualifying RUO proteins when you spend $1,500 or more.
Save on Eligible Products
With Promo Code: PROVEN22
Offer valid through September 18th, 2026 in North America and Europe.
View Terms and Conditions for full details (link to terms and conditions).
It’s simple to order and save:
- Add the eligible products to your cart.
- At checkout, enter promo code PROVEN22.
- When your order processes, you’ll receive a sale confirmation with your final order price.
Terms and Conditions:
For a limited time, receive 22% off qualifying proteins when you spend 1,500 USD (or regional currency equivalent) using promo code PROVEN22 with a qualifying purchase. Offer valid on orders up to 10,000 USD (or regional currency equivalent) with the maximum discount of 2,200 USD (or regional currency equivalent). Qualifying products include research use only and animal-free recombinant proteins, cytokines, growth factors, and enzymes. Offer excludes peptides, GMP grade products, custom and special orders, bulk quantities, antibodies, small molecules, immunoassay kits, immunoassay kit components, instruments, and instrument consumables. Orders must be placed directly with Bio-Techne or R&D Systems. Offer is not valid through our extended distributor network. Offer applies to list price only and cannot be used in conjunction with any other offers or promotional discounts, for prior purchases or orders pending. No credits will be issued. All requests are offered at the company's discretion and are subject to availability and approval by Bio-Techne, R&D Systems, Novus Biologicals, and Tocris Bioscience. Offer valid only in North America, Europe, and United Kingdom. Offer limited to one use per customer. Additional exclusions may apply. Bio-Techne standard terms and conditions apply and are available at: www.bio-techne.com/terms-and-conditions. Offer valid until September 18th, 2026.