Advances in Herbal Nootropics for Dementia: Targeting Oxidative Stress, Neuroinflammation, and Cognitive Decline

Abstract

Herbal nootropics are gaining attention for their multi-target strategy in dementia, which offers neuroprotection along with antioxidant and anti-inflammatory actions. The current therapies only provide symptomatic relief without halting or altering disease progression, which occurs due to a complex interplay of amyloid and tau pathology, oxidative stress, deficiency of neurotransmitters, neuroinflammation and vascular damage. The worldwide growing burden of dementia highlights the need for safer, affordable and mechanistically broader therapies.
Herbal nootropics like Bacopa monnieri, Gingko biloba, Curcuma longa and many more acts on variety of targets such as acetylcholinesterase inhibition, modulation of signalling but primarily they enhance cognition by modulating neurotransmission, improve brain energy metabolism, support neuroplasticity and reduce oxidative and inflammatory stress.
Preclinical research demonstrates improvements in learning and memory from herbal nootropics. However, the lack of standardization and large-scale trials restrict their clinical translation. Future work should focus on standardized extracts, interaction assessments and rational integration with conventional treatment for evidence-based roles of herbal nootropics in dementia.