3 for 2 on Primary Antibodies

Stock up and save on your favorite primary antibodies!

Use promo code: B2G124

Offer Ends: June 30th, 2024 (Valid in US, Canada, and Europe*)
  • 1
    Rigorously tested for target specificity including KD/KO validation
  • 4
    Broad target coverage across multiple research areas
  • 2
    Validated in WB, IP, ELISA, IHC, IF, FC, & more
  • 5
    Cited in >200,000 citations
  • 3
    Reactivity against multiple species
  • 6
    Self-manufactured catalog with in-house validation

Search our catalog of Primary Antibodies

Proteintech is a leading provider of primary antibodies with an extensive portfolio of polyclonal, monoclonal, and recombinant antibodies.

All our primary antibodies are developed and validated in-house by Proteintech scientists to ensure high specificity and lot-to-lot consistency.

Polyclonal Antibodies

Recognize multiple epitopes on the protein of interest. Binds with very high affinity. Good for low abundant targets, rare species and mutated proteins.

Proteintech polyclonals are raised in rabbit.

Monoclonal Antibodies

Recognize a single epitope on the protein of interest. Low background, highly specific. Good for mid-high abundant targets. ​

Proteintech monoclonal antibodies are raised in mouse.

Recombinant Antibodies

Genetically defined monoclonals, recombinantly produced. Unrivalled reproducibility. Good for long-term, high-level projects.  ​

Proteintech recombinant antibodies are raised in rabbit. Learn more about our recombinant antibody production process.

Find Your Primary Antibodies



 Terms and Conditions:

  1. This promotional offer is only available to customers based in the USA, Canada, and Europe.
  2. Valid throughout June 2024. 
  3. Purchase two full size antibodies and get a third full size antibody for free.
  4. Product of equal or lesser value will be chosen as the free product.
  5. Discount may be applied to orders of up to 9 qualifying products (up to 6 paid and 3 free products per order).
  6. Trial size (20ul) antibodies are not considered full sized antibodies and are therefore excluded from this promotion.
  7. All ChromoTek, HumanKine, and Genomics products are excluded from this promotion.
  8. Tag/Control antibodies are included in this promotion.
  9. Antibody trial packs cannot be redeemed as a single item.
  10. This promotion code cannot be used in conjunction with any other promotional offer. 
  11. The promotion code B2G124 must be entered at checkout or quoted on your email/fax order to be applied. We cannot apply the promotion retroactively. 
  12. Available for direct orders only.
  13. Usual shipping costs still apply. 
  14. Proteintech reserves the right to cancel or refuse this promotion at any time.


Discover our other exciting 3 for 2 promotions:


3 for 2 on ChromoTek Nanobodies

Find Nanobody-based tools for your new projects.

3 for 2 on HumanKine RUO Reagents

Buy two HumanKine RUO products, get one free.