Vitamin studied for skin cell turnover, vision, immune function. How it works, the dose and timing studied, what it interacts with, and the research behind the grade.
All compoundsA fat-soluble vitamin whose active form, retinoic acid, binds nuclear receptors that regulate skin cell differentiation, vision (as retinal), and immune gene expression. Beta-carotene is a safer provitamin source.
The dose below reflects the range used in published research. Match the form alongside the milligrams. Set your own wake and bed times to map the timing onto your day.
Read these before combining this with other supplements or medication. The risk is rarely the headline, it is the interaction you did not check.
Derived from shared topics, complementary categories, and the interaction list. Introduce one compound at a time so you can tell what works.
No direct compound conflicts derived. Still check the interactions list above against your medication.
Often considered alongside this one. Each carries its own evidence grade.