Jason Brown, CEO of Vitamin Packs, discusses how his company can deliver improved health right to your door. Vitamin Packs is a start-up subscription service that delivers personalized vitamins to consumers once a month.

Brown explains the company takes customers' personal information into account, including any and all medications. He says the general vitamin business started as snake oil but is now nearing pharmaceutical grade.

Vitamin Packs raised $3.8 million in its first round of funding and just shipped its 5000th order. While a majority of first-time users still come from social media and PR posts, word of mouth is becoming crucial to Brown's business model.