Johnson Compounding & Wellness will hold its popular Customer Appreciation Open House from 11 a.m. to 3 p.m., June 2. Representatives from many of their most highly regarded brands will be on hand with free samples and wellness tips, and prizes will be raffled off throughout the day. All items (prescriptions excluded) will be discounted 20 percent only on this day.

“Our customers are our greatest asset,” says John Walczyk, coowner. “We are excited to share one of our favorite days with them.”

Cost: Free. Location: 577 Main St., Waltham. For more information, visit NaturalCompounder.com.