Natrol® Cognium® is powered by a silk protein hydrolysate that has been clinically shown to improve memory and recall in healthy adults. Researchers conducted multiple randomized, double-blind, placebo-controlled studies and published their findings in peer-reviewed journals. The studies can be found below. In these clinical studies, the silk protein hydrolysate in Cognium is referred to as either Brain Factor-7 or BF-7.
Cognium Regular and Extra Strength Clinical Studies
Click on a link below to read the study.
- “Association between cerebral blood flow and cognitive improvement effect by B. mori extracted compound.” Kor J Seric Sci 2004a; 46(2):77-79. Korean. [applies only to Cognium Extra Strength]
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“The improvement of learning and memory ability of normal persons by BF-7.” Kor J Physiol Pharmacol 2004b Dec; 8:307-312.
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“BF-7 improved memory function and protected neurons from oxidative stress.” Kor J Phys Anthropol 2004c; 17(4):313-320. Korean.
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“The effect of BF-7 on the ischemia-induced learning and memory deficits.” Kor J Anat 2005; 38(2):181-188. Korean.
