Base
Keto Brainz Nootropic Creamer
$58.99
30 servings. In stock in the quiz catalog. Shop the jar, or take the quiz if you want packets or a three-packet trial instead.
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Best nootropic stack for focus
The focus match from this quiz is the Keto Brainz Nootropic Creamer stirred into coffee you already drink.
The powder has no caffeine, and each serving includes 250 mg L-theanine, the theanine amount used with caffeine in the trial below.
The creamer label also lists Alpha-GPC at 300 mg, Lion's Mane at 500 mg, and 8 g C8 MCT. This page does not cite a clinical trial for the Alpha-GPC or Lion's Mane amounts, because the papers checked here were either inconclusive or studied people with cognitive impairment.
What the study measured
Haskell and colleagues gave healthy adults 250 mg L-theanine, 150 mg caffeine, both together, or placebo. The combination improved rapid visual information processing accuracy, simple reaction time, numeric working memory reaction time, and sentence verification accuracy. L-theanine alone increased headache ratings and reduced correct serial-seven subtractions, so this stack pairs the creamer with coffee instead of presenting theanine as a stimulant by itself. The trial's caffeine dose was 150 mg, which is more than a small cup and more than the 60 mg in a KETOSTART sachet.
- Haskell CF, Kennedy DO, Milne AL, Wesnes KA, Scholey AB. The effects of L-theanine, caffeine and their combination on cognition and mood. Biol Psychol. 2008;77(2):113-122. doi:10.1016/j.biopsycho.2007.09.008. PubMed 18006208.