Best value L-Arginine product around IMO. I take 2 x 1000mg tablets daily for virility purposes and it has been a godsend for me. To really get maximum benefit in that department, add 100mg of Pycnogenol per day. Wow, I feel almost 20 again. (I'm actually on the wrong side of 40). Amazing product.
Posted by iHerb Customer on January 12 2018 | Verified Purchase
Been used for 3months..not feeling any difference
Posted by iHerb Customer on March 23 2016 | Verified Purchase
I think this arginine is very bad quality. Usually you can feel the effect of arginine, but not this
Posted by iHerb Customer on April 19 2015 | Verified Purchase
I tried 21st Century Health Care, L-Arginine, Maximum Strength, 1000 mg, 100 Tablets for one month,but it didn't work. I noticed no difference at all.
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