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iHerb Customer Reviews



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  • South Korean Customs may require a doctor's note or a prescription to import these products.

  • Customer Ratings

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    Reviews | English
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    superior form of alpha-lipoic acid

    Posted by Reviewer2080444 on Jan 13, 2010

    i don't tolerate other forms of this supplement, but when i came to LEF's new formulation, it just worked. much better bioavailability.

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    Tinnitus - Ageing - Energy

    Posted by Reviewer1454935 on Sep 22, 2010

    This product keeps me moving, helps my skin, disposition and tinnitus' should I skip my regimen it down plays my energy level and my tinnitus peaks. Have not experienced any adverse side effects. Highly recommended to anyone trying to improve his or her quality of health.

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    super r-lipoic acid

    Posted by Reviewer3076655 on Dec 02, 2011

    I take this product for diabetic nerve damage and have found it is doing an excellent job controlling the sharp pains in my feet. I would recommend this product to anyone who is diabetic.

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    Posted by Reviewer3324718 on Apr 28, 2012

    I was taking 3 Metformins (750mg each-extended release) tablets in AM. I am totally off the diabetic meds and doing GREAT!! BUT I don't eat sugar and I watch what I eat. I've cut out sugar, white flour, and white salt and eating healthy. (I do treat myself with a few squares of New Tree dark Chocolate bar with flaxseeds occasionally.) I don't eat a piece of cake only a bite. So stop the sugar and start taking the R form of Lipoic Acid. I weaned myself off. Dropped one Metformin every 2-4 weeks and took one Super R-Lipoic Acid an 1-2 hours apart (don't know if that's necessary but I don't like to mix meds & herbs). I took one Super R 1 hr before food with glass of water in AM then Metformin later. Blood sugars are always good and MUCH better when I exercise that day (I exercise in AM). I was on diabetic meds for 8-9 years.

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    Top quality product!! Serious

    Posted by Reviewer2959963 on Aug 21, 2014

    Ive tried many forms of R ALPHA LIPOIC ACID and ALPHA LIPOIC ACID and this, believe me, is one of the very best. Its not cheap, but you get the all important top quality. To me, taking an inferior product for less money just doesnt cut it. Its the difference between feeling better and no improvement (night and day). I use it for heart, liver and cognition. Love it, i can feel it working.

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    Posted by Reviewer1055106 on Jan 31, 2009

    When I took this product I noticed an immediate fall in blood sugar levels and I could reduce my insulin by half. But after a while I made the mistake to switch to an alpha lipoic acid without the "R" just because it was less costly and I have so many other products to buy every month. I did not understand why my blood sugar began to rise again after changing to "ala" without the "R". Now I understand, after having read many articles on the subject, that the only biologically active form is "R-alpha lipoic acid." If you are a diabetic I recommend you never go for the cheaper products. Although the "R" forms are a bit more expensive they do have a biological activity the other ala products have not, at least when it comes to blood sugar control.

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    Pricey but important

    Posted by Reviewer1915264 on Feb 04, 2009

    I use these for insulin resistance and am glad to find the higher dose per cap.

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    R-Lipoic works with Vitamins

    Posted by Reviewer1400953 on Jan 20, 2010

    I take R-Lipoic Acid with to help Vitamin C,Vit E, Glutathione and CoQ10 extend their metobolic lifespans. It is certainly one of the top vitamins that is easy on the budget and a top anti-oxidant. I like R-Lipoic over the Alpha Lipoic. T trust Life Extension's vitamins as they research behind them.

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    Good for what it is.

    Posted by Reviewer1654938 on Mar 13, 2010

    Good R-LA.. Though next time around I'll be getting AOR Sustained Release R(+)-LA, as the half-life of this R-LA in your bloodstream is very short.

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    Quality product, good dosage

    Posted by Reviewer2124393 on Sep 28, 2008

    Easy to take, no bitter taste and heartburn like I always had with LEF's dihydro-lipoic acid product

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    Items 11-20 of 64 total

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