I have trouble with nausea, but thought I would try them because I found my hair becoming more brittle and thin with age. I took them for a month, and found them mildly nauseating and decided not to order again. To my great surprise I received a second bottle automatically! I would NEVER intentionally sign up for automatic shipping of ANY product. I intended to try and cancel, but I got busy at work and forgot. I just received a message from paypal that I've been debited AGAIN for a product that I thought I was only "trying". Now I'll be saddled with nearly 200 dollars of vitamins that I do not want! I can't comment on the effectiveness, but if it lived up to its claim..I don't think they would need to "hoodwink" you into a subscription.