Phytonadione
Vitamin K
CLimited evidence (small studies)Safety: Safe
Chemical Function
Supports capillary health; used for dark circles.
Scientific Evidence
Limited evidence for under-eye circles; effects are modest.
Quality of EvidenceWeak
Interactions
Pairs with caffeine and vitamin C in eye creams.
Pro-Aging Relevance
May help vascular under-eye circles.
The Science Behind Phytonadione
Vitamin K supports blood vessel integrity. It is used in eye creams for dark circles, though evidence is limited and results vary.
Recommended Products
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