box of dvelop for a more resilient immune system

d.velop stronger immunity*

3x faster, 3x more effective.*†
The best source of Vitamin D under the sun

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Understand and optimize your immune health

d.velop Vitamin D pill

Maximize your immunity

d.velop™ products are the only vitamin D supplements with calcifediol, a clinically proven form of vitamin D that raises vitamin D levels 3x faster than other supplements.*†

d.velop mobile app screen

At your fingertips

Track your progress toward a healthier immune system and improved vitamin D levels with the d.velop™ app. Simple, straight-forward support from registered dietitians designed to help you reach your goals.

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See what others are saying.

“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

“Taking my d.velop has made me more energetic and feeling better.”

Andrew S

“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

“Great for building a resilient and strong immune system quickly!!”

Jane W

"…my level went from 17.9 to 35 in 2 weeks! "

Lynn M​

“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