Posted by iHerb Customer on April 24 2009 | Verified Purchase
This bottle gives me dizziness or feeling faint!! The bottle reccommends taking 2 to 4 TWICE a day on empty stomach. I started with only 2 ONCE a day and feel instant dizziness. Then I lowered it to 1 a day and still feel as dizzy as before. This product does have more HA and Collagen but can't compare to Source Naturals, Skin Eternal Hyaluronic Acid (i get no headaches and dizziness with this Source Naturals one).