Sales & Promotions Information
Unless otherwise stated, sales, promotions, and Auto-Ship discounts cannot be combined.
FAST-25: Offer valid from 8:00am PT on Thursday, June 25, 2026 until 11:59pm PT on Tuesday, June 30, 2026. Valid only on S. boulardii + FOS Powder and Gut Microbiome Tests for Cats and Dogs. Must add at least 2 eligible items to cart. Enter code FAST-25 at checkout. Cannot be combined with any other discounts or promotions.