Oral supplements and topical products may be available without a prescription, though physician guidance is still recommended
[2] In the US, non-prescription products can be purchased providing up to 1,000 g each, and it is a common ingredient in energy drinks and energy shots, usually at many times the recommended dietary allowance of B 12
Pricing, subscriptions, and shipping Heres how Natural Factors pricing shakes out for a 60-capsule bottle: One-time price : $21.95 Subscription (10% off) : $19.76 Lowest cost per serving : $0.33 That per-capsule cost is higher than some generic lactase tablets, but youre getting a product with a full 9,000 FCC clinical-strength dose and extensive third-party testing, which helps justify the premium
doi: 10.1111/dom.13266 215 BolliGBMunteanuMDotsenkoSNiemoellerEBokaGWuYet al
Blasting it with a jet of water can damage the molecular structure