No results for me at all. I did 2400 mg/day. No side effects even though on the cup was written 300mg per day dosage. The only results were expensive pee!
I also can chew and eat grape seeds. No results to my eye floaters either.
Grape Seed Proanthocyanidin Extract for Eye Floaters
I had previously thought(yesterday) that high dose (2400 mg/day in two divided doses at breakfast and dinner.) Grape Seed Proanthocyanidin Extract (GSPE) had caused a 50% reduction in my eye floaters that had still remained after a previous treatment, but on review this morning, I realized that my left eye no longer has any floaters and my right eye has less floaters and they are faded or lighter, whereas they used to be darker. Overall I would describe the total reduction as 80% over about a two month period.
It will be interesting to see if, over time, what remains in my right eye goes away completely also. The eye floaters were not the reason that I started the GSPE, but it is a nice bonus! There is significant anecdotal evidence on the web suggesting that GSPE would beneficial for the eyes and floaters, but I don't find any studies that have looked into GSPE for floaters.