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Description
Effects of caffeine on in vivo and in vitro oocyte maturation in mice

The absorption rate and efficacy can vary significantly depending on the formulation, including the presence of penetration enhancers and the overall stability of the product

A.et al (2023)
Alterations in acetylcholine release in the rat hippocampus during sleep-wakefulness detected by intracerebral dialysis

Most evidence comes from preclinical studies or uncontrolled human case series insufficient for broad clinical endorsement
This regulatory environment creates uncertainty
