Angels' Eyes is the only product on the market today that will eliminate unsightly tear stains from within. All other products are topical, requiring high maintenance and yet will only remove the stains temporarily causing it to come back many times worse than before. Just sprinkle Angels' Eyes daily on regular food. After 3 months, reduce to 4 times a week. After 6 months, reduce further to twice a week. Our bottles contain net contents 1.06 oz (30 grams), 2.12 oz (60 grams net) and 4.23 oz (120 grams net), 8.47 oz net (240 grams net) ... larger sizes are for multiple dogs or cats' owners. DIRECTIONS: SHAKE BEFORE DISPENSING. Suggested use: Give daily until tear stains subside and continue use for an additional 30 days. If tear stains reappear, repeat procedure. Store bottle in a cool dry place.