Vitamin A plays an essential role in maintaining tissues that line the eyes, respiratory tract, and gut—areas that are constantly exposed to environmental stress. It also supports normal vision, immune function, and skin health.
We set our Vitamin A dosage level to 900 mcg RAE - right at the RDA for men. This ensures adequacy without pushing anywhere near the upper limit. Because preformed Vitamin A (retinyl palmitate) is already bioavailable, there’s no need to use excessively high doses like some beta-carotene–based formulas.