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  • High Standard

    health and wellness products
  • High Standard

    health and wellness products


Difass USA, a modern supplement brand committed to excellence is the US arm of Difass International, a respected European nutraceutical company dedicated to the research and manufacture of health and wellness products.

We are proud of the quality of our products and want to make sure you are completely satisfied. Difass USA guarantees every product that it sells because all products are manufactured under rigorous quality control standards, in full compliance with federal and state regulations for food and dietary supplements.

  • Dormiva
    A Natural Sleep Aid
    Dormiva® is a unique formulation of natural sleep support ingredients adapted from an Italian recipe.
  • Relaxiva
    A Natural Stress Aid
    Relaxiva® is a unique, award-nominated formulation of natural stress support ingredients adapted from an Italian recipe.
  • Free Shipping
    Receive FREE Standard shipping with Difass USA. Orders are shipped within 24 to 48 hours through USPS for priority mail, which takes 3-5 business days.

  • Our Guarantee
    Your satisfaction is guaranteed for 60 days from the purchase date. If you are not completely satisfied, return the unused portion and we will promptly refund your money for the unused portion.
  • Contact Us
    Contact us via email at or call us at 1-800-976-5317.
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