Vitamin B2 Riboflavin 400mg

Our verdict

Vitamin B2 Riboflavin 400mg works out to $0.11 per serving of vitamin b2 (riboflavin), at 400mg per serving in capsule form. That puts it below the median of the 48 vitamin b2 (riboflavin) products we can price per dose, where the typical serving costs $0.12, a Value Index of 1.0 where the median product is 1.0. One container lasts 240 days at the label dose of 1 serving a day, about $3.37 a month. We could not verify a third-party certification for Purely Holistic in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.