“After taking the test and finding out I was Vitamin D deficient, I started taking d.velop supplements. My vitamin D. levels had risen within only two weeks.”

Juliann N

“This is an amazing at-home test and perfect for anyone wanting to boost their vitamin D levels within a month.”

Deanne G

“I went to a baseball game for the first time after the pandemic due to d.velop. I would not have gone if not for d.velop.”

James J

“Immunity is more important than ever, especially as we continue to support our health through the COVID-19 pandemic…supplemental nutrition is a big part of this equation.”

Certified Dietitian Nutritionist

Melissa Rifkin, MS, RD, CDN

“More than 9 in 10 people don't get enough vitamin D from food alone. That's why we created the most effective vitamin D available as a supplement.”

Chief Science Officer

Nate Matusheski, PhD

“Vitamin D is a foundational immune system nutrient. It’s important that we assess our supplemental needs as we look to stay healthy year-round.”

Registered Dietitian

Chloe Giraldi, MS, RD, LDN