Johnson Compounding & Wellness will hold its popular Customer Appreciation Open House from 11 a.m. to 3 p.m., May 20. Representatives from many of their most highly regarded brands will be on hand with free samples and wellness tips. All items (prescriptions excluded) will be discounted 20 percent only on this day. The event will also include Dr. Meena Kumar, who practices functional medicine, and many amazing raffle prizes.

“Our customers are our greatest asset,” says Katie Nolan, director of pharmacy education. “We are excited to share one of our favorite days with them.”

Cost: Free. 577 Main St., Waltham. For more information, call 781-893-3870 or visit NaturalCompounder.com.