Many find it helps reduce the appearance of unevenness and dullness, offering a natural way to enhance their skins look while feeling refreshed
[DOI] [PMC free article] [PubMed] [Google Scholar] Chun LS, Free RB, Doyle TB, Huang XP, Rankin ML, Sibley DR (2013) D1-D2 dopamine receptor synergy promotes calcium signaling via multiple mechanisms
In addition to the diffusion and bulk flow theory, other theories have also been proposed, such as the osmoelectric siphon model, which is based on membrane depolarization leading to cell water shedding into the apoplast followed by membrane repolarization and water uptake 43
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Kojic acid works externally by targeting pigmentation on the skin surface, while glutathione works internally by helping regulate melanin production and reducing oxidative stress, promoting long-term skin health
Additionally, theanine is structurally related to glutamate, an additional neurotransmitter