P21 is a research peptide being explored for its potential cognitive benefits and support of brain cell regeneration. In preclinical studies, it has demonstrated an ability to increase brain-derived neurotrophic factor (BDNF), a protein associated with neural growth and repair. Elevated BDNF levels may contribute to improved cognitive function and help reduce the buildup of harmful brain proteins linked to neurodegenerative decline. Research on P21 continues to focus on its role in learning, memory, and overall brain health.
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