Ratings You Can Trust

Get science-backed ratings on options to improve your brain health, and explore steps you can take now.

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Evidence rating reflects available research on potential benefit. Null rating indicates lack of available evidence.

Supplements - Benfotiamine, relative of thiamine

Benfotiamine

Updated Mar 24, 2017

Evidence

Potential Benefit

Safety

Do N-acetylcysteine supplements help prevent dementia?

N-acetylcysteine

Updated Feb 2, 2017

Evidence

Potential Benefit

Safety

L-theanine supplements

L-theanine

Updated Jan 20, 2017

Evidence

Potential Benefit

Safety

Berberine, an alkaloid, found in the Barberry plant

Berberine

Updated Jan 18, 2017

Evidence

Potential Benefit

Safety

Green Tea Leaves

EGCG

Updated Dec 21, 2016

Evidence

Potential Benefit

Safety

Supplements

Phosphatidylserine

Updated Nov 10, 2016

Evidence

Potential Benefit

Safety

Green Tea

Green Tea

Updated Oct 28, 2016

Evidence

Potential Benefit

Safety

Pig - which cerebrolysin is derived from

Cerebrolysin

Updated Sep 22, 2016

Evidence

Potential Benefit

Safety

Prescription Bottle

Lithium - Pharmaceutical

Updated Sep 21, 2016

Evidence

Potential Benefit

Safety

Firmoss plant

Huperzine A

Updated Aug 30, 2016

Evidence

Potential Benefit

Safety

Nicotine Patch

Nicotine

Updated Aug 24, 2016

Evidence

Potential Benefit

Safety

Olive Oil

Olive Oil

Updated Aug 21, 2016

Evidence

Potential Benefit

Safety

Ashwagandha

Ashwagandha

Updated Aug 17, 2016

Evidence

Potential Benefit

Safety

blister pack

PDE5 Inhibitors

Updated Aug 11, 2016

Evidence

Potential Benefit

Safety

Fisetin-containing strawberries

Fisetin

Updated Aug 9, 2016

Evidence

Potential Benefit

Safety

Rhodiola rosea plant

Rhodiola

Updated Aug 6, 2016

Evidence

Potential Benefit

Safety

Magnesium, Spinach

Magnesium

Updated Aug 6, 2016

Evidence

Potential Benefit

Safety

Red meat

Acetyl L-carnitine

Updated Aug 4, 2016

Evidence

Potential Benefit

Safety

Periwinkle Plant

Vinpocetine

Updated Jul 26, 2016

Evidence

Potential Benefit

Safety

Lithium

Lithium - Dietary

Updated Jul 26, 2016

Evidence

Potential Benefit

Safety