Welcome to the 3 Week Challenge

By feeding your pet Purina ONE®, you'll be able to see visible results in just 3 weeks or your money back.
Join the challenge, get your $5 off coupon & track your results.

Benefits of the 3 Week Challenge

  • $5 off coupon for PURINA ONE products
  • Visible health benefits in just 21 days
  • Before and after comparison tool
  • The chance for your pet to be a featured 3 Week Challenge Graduate