Zeatin

Zeatin is a naturally occurring plant growth factor (cytokinin) derived from maize. In skincare, it functions as a skin conditioning agent, working at the cellular level to support skin hydration and resilience.The ingredient appears to exert its effects by influencing cellular signalling pathways that are disrupted by sun exposure. Research has focused primarily on its trans form, which is considered more stable and bioactive than other variants.

Zeatin influences cellular signalling pathways, particularly the MEK/ERK pathway, which is activated by UV exposure. By modulating this pathway, it may help prevent the UV-triggered downregulation of aquaporin-3—a protein responsible for water transport across cell membranes. This could help skin maintain its water content more effectively.Additionally, research suggests zeatin may inhibit the expression of matrix metalloproteinase-1 (MMP-1), an enzyme that breaks down collagen and other structural proteins in the skin. By limiting UV-induced MMP-1 activation, it may help preserve the extra…

Zeatin is typically incorporated into serums, moisturisers, and targeted treatments. It works well in layered routines and can be combined with other hydrating or antioxidant ingredients. No special application technique is required; simply apply to clean skin as directed on the product label.

Zeatin has demonstrated safety in laboratory studies at concentrations well above typical skincare levels, with no reported toxicity or adverse effects on cell viability. It is generally considered well-tolerated, though formal human safety data remains limited.