Your body does not retain the nourishment and vitamins from inhaling these. I have been using a vitamin vape for about 3 weeks, and I have not felt any difference. I honestly think that their testimonials are not true because the vape pen makes me cough more than anything. Check out this article, and save your money.

https://www.menshealth.com/health/a19546318/vitamin-vaping-is-it-good-for-you/