L-OptiZinc is the only high-potency zinc supplement FDA approved safe for human nutrition. L-OptiZinc is also an approved form of zinc for use in the EU in food supplements. In general, zinc is an essential mineral involved in regulating a large amount of enzymes in the body. It is known as an antioxidant and immune boosting supplement, and is most commonly supplemented to reduce the frequency of sickness and to support optimal testosterone levels. Zinc is highly involved in many enzyme systems in the body. Keeping normal zinc levels helps with the maintenance of these enzyme systems and acts as a hormonal and immune system aid. High dose zinc in response to the common cold (not taken preventatively, but only at the onset of sickness) appears to be effective in reducing the duration and severity of sickness. Zinc is also known to be circulating at lower levels in persons with acne relative to those without, and it is thought to be therapeutic by reducing the migration of immune cells to the skin and possibly reducing the effects of androgens on the skin. A number of trials using zinc for acne control note that standard to high supplemental dosages have a modest protective effect. L-OptiZinc is a forms of methionine-bound zinc that increase the bioavailability of zinc. Methionine is the amino acid best absorbed by the body. L-OptiZinc is standardized to 20% zinc, consists of zinc bound to the more bioavailable "L" form of methionine. Some preclinical studies show that L-OptiZinc is absorbed better, retained longer and are more effective than other zinc supplements tested. Taking everything into account, I highly recommend this high quality product manufactured by Now Foods with reasonable price offered by iHerb. A single dose per day is what you need. I hope you'll find my review helpful to you. I am a strong advocate on scientific medical research and evidence-based information, and constantly want to differentiate between marketing hyperbole and real world effects. If you like my review, please kindly click ‘Yes’. And also, please feel free to check out my page for more reviews by clicking my name 3827GreenWood at the top of this review. Best wishes and good health to everyone!
Posted by iHerb Customer on Jun 11, 2009 | Verified Purchase
I can actually feel more energy on the days when I take Now Foods, L-OptiZinc. (I don't take it everyday because I'm trying to better balance my copper:zinc ratio by taking copper everyday.) I get it from iherb.com; the best prices, outstanding service.
Posted by iHerb Customer on Aug 02, 2016 | Verified Purchase
I don't know if as good as picolinate. I used ZincPicolinate just before, but switched to OptiZinc because is supposed to be as bioavailable, and picolinate really has a plastic smell and taste. But it seems like it is not working as wel. With picolinate no colds, now I have one. With picolinate , "my manhood" got a push in the back, wit optizinc feel no difference.
Posted by iHerb Customer on May 29, 2012 | Verified Purchase
does not prevent / solve the problem of acne on its own though.
Posted by anettemostad on Oct 07, 2012 | Verified Purchase
Use it to prevent ulcers and in other ways keep healthy
Posted by iHerb Customer on Sep 22, 2009 | Verified Purchase
Easy to take, one a day supplement. Good ratio of zinc and copper, essemntial for men's health
Posted by iHerb Customer on Sep 19, 2009 | Verified Purchase
would like to have seen a little more information on the difference between Opti and L-Opti.
Posted by iHerb Customer on Nov 24, 2007 | Verified Purchase
Chelated, good strength, and right proportion of copper. Nice price too.
Posted by LivKarinNorway on Apr 07, 2011 | Verified Purchase
This i s a good one if you need more zink than normal.
Posted by iHerb Customer on Mar 20, 2010 | Verified Purchase
A useful zinc supplement, my favourite so far. Libido is through the roof.
Posted by iHerb Customer on Jul 27, 2012 | Verified Purchase
I started taking this for my adult acne/rosacea. I noticed a difference within about 3 days and it seems to have dramatically reduced the number of pimples, balckheads, and whiteheadds I get as well as the redness of my face. I've switched to Thorne's zinc picolinate now on the advice of a doctor specializing in nutrional medecine since he claims that that form is much better absorbed and Thorne is a very reliable brand.