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In animal studies, P21 has been shown to boost levels of BDNF (brain-derived neurotrophic factor), thus promoting neurogenesis (nerve growth) and inhibiting the formation of Amyloid plaques and Tau proteins seen in Alzheimer's disease
When a product competes on shelf price, ingredient quality is always the casualty
The confusion compounds when you factor in reconstitution calculations , cycle lengths, and body weight considerations
No large randomised controlled trials
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