This product is supposed to be very good for people it is a natural source of Vitamins A and D, it helps maintain eyesight, skin, night vision and Immune System Functions. I've been taking these my whole life. I usually take these so I don't get a cold in the winter seasons. The large bottles is about 10-15 dollars depending on where you buy it from and it comes with 365 soft tablets. One for everyday of the year.