I also Vitamin K2 with MK7 but have not noticed my eyes are less dry. I take the Vitamin K2 with MK7 as part of my supplements to help with my neuropathy. Here's some research on the vitamin.

"K2 as MK7 100 mcg - also known as menaquinone-7 (MK-7) is a form of vitamin K that has health-beneficial effects in osteoporosis, cardiovascular disease, inflammation, cancer, Alzheimer's disease, diabetes and peripheral neuropathy"
--- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9237441/

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