★☆☆☆☆
WARNING!
This product (the Ultimate H.A. from P. Products) acts like a sedative in my body. I don't know if it is the Hyaluronic Acid or another ingredient in the capsule, but 30 minutes after taking 1 capsule, I felt a pressure just above my forehead and then the intense urge to sleep set in. I made 2 driving mistakes the first day I took it, I was so out of it. Luckily no accident, only a very close call.
Not only did I feel totally exhausted, I also looked tired. People kept asking me if I was okay, did I just wake up, I didn't look right, etc. etc.. I also had extremely weird and disturbing dreams when I took this product. To me that's usually a loud and clear message that my body doesn't like a supplement! At any rate, I kept up the HA (just 1 pill/day) for 7 days, hoping that the side effects would abate. They didn't, not a bit...
I might try another brand of Hyaluronic Acid in the future to see if the same thing happens. Incidentally, I have a few other friends testing the same product (all taking 3 capsules a day) and none are experiencing the exhaustion. The only common side effect is the vivid, weird dreams.
Just be careful if you are trying out this product for the first time. Chances are you'll be fine, but if you feel tired all of a sudden, be careful on the road!!