Grape seed extract is an excellent antioxidant, meaning it reduces the destructive effects of inhaled oxygen (due to the production of free radicals) in the human body. And since we cannot live without oxygen, it is necessary to consume these antioxidants daily. They also have the role of slowing down the aging process.
I trust NOW products & this product qualifies as a high quality product because of the correct percentage of the grape seed extract ingredient. It has been extremely beneficial in the past to overcome carpal tunnel issues for me (not always for everyone else). I am selective in how many supplements I take & this is one I intend to continue taking.
This is a quality grape seed extract and good value for money (as most supplements by Now), however I prefer Vitaflavan GSE by California Gold, which is biased toward low molecular weight polyphenols and has been shown in preclinical studies to increase NAD+ levels via the inflammatory pathway (CD38 inhibition). This one has a much larger content of high molecular weight tannins. Neutral taste.
Neg: I don't like that it has calcium as an ingredient when the larger mg and container size doesn't. Positive: It works for circulation. I tried the iHerb Gold brand of same mg without much noticed effect. I take one to two a day along with other vitamins and clearly see noticeable erection health on a regular basis; during sleep and when needed. I have and will recommend.