Now, let’s look at the magnitude of nootropic effect from ingredients in these products. Some ingredients may have multiple nootropic effects. While it's important to consult a physician before and during use of any supplement, I recommend additional caution when using under-studied ingredients. They reflect the evidence scale of 0 to 4, where 0 is practically no evidence, and 4 is strong evidence.Ĭlarity includes only ingredients that provide nootropic effects according to multiple peer-reviewed, double-blind, placebo-controlled studies. Don't just take my word for it! Please look at the studies yourself, and ask your physician to look at them with you.Īlpha Brain includes several ingredients for which there is relatively little research. In this comparison of ingredient evidence, Clarity beats Alpha Brain by a wide margin. The product ingredient evidence scores are averages of individual ingredient evidence scores. **My estimates of the ratings for Oat and Vitamin B Complex correspond to the rating for ingredients with multiple peer-reviewed, double-blind, placebo-controlled studies. This information is updated from, Thrivous, and Onnit websites on 22 February 2017. *My estimate of the rating for Huperzine corresponds to the rating for ingredients with a single double-blind study or multiple cohort studies. For example, Bacopa is rated 3 because multiple peer-reviewed, double-blind, placebo-controlled studies support its effect on memory. In the table below, for each ingredient, the “evidence” column indicates the level of evidence on a scale of 0 to 4 for the nootropic effect with the strongest supporting evidence. In cases when does not provide an evidence rating, I'll flag the ingredient and estimate the rating. To score the ingredients, we’ll use evidence ratings from, an independent and unbiased encyclopedia on supplementation and nutrition that is not affiliated in any way with any supplement company. In those cases, we'll take into consideration only the effect with the strongest supporting evidence. Let’s look at the level of scientific evidence for nootropic effects from ingredients in these products. Some ingredients may have multiple nootropic effects. Onnit Fuel Blend (L-Leucine, Vinpocetine, Pterostilbene) Onnit Focus Blend (L-Alpha glycerylphosphorylcholine (GPC), Bacopa monnieri (aerial parts) Extract, Huperzia serrata (aerial parts) Extract) Onnit Flow Blend (L-Tyrosine, L-Theanine, Oat (straw) Extract, Phosphatidylserine) This information is updated from Thrivous and Onnit websites on 22 February 2017. Here are the ingredients in Thrivous Clarity and Onnit Alpha Brain: Clarity (30 days for $30) Together, the scores show the relative nootropic effect you may reasonably expect per dollar spent. And you'll see that Thrivous is clearly the better value. The end result of the comparison is two scores – one score for each product.
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