BioStacksHow Vitamin A supports skin
When it comes to skin, Vitamin A is one of the most supporting nutrients to consider. Exists as preformed retinol (animal sources) and provitamin A carotenoids like beta-carotene (plant sources). Retinyl palmitate and retinyl acetate are common supplemental forms with high bioavailability. Preformed vitamin A carries toxicity risk at high doses—excess can cause liver damage and is contraindicated in pregnancy above the RDA. In clinical studies, vitamin a maintains skin integrity.
Effective dosing
Most evidence supports 700–1500 mcg of vitamin a daily. Products below this range may not deliver meaningful results.
Clinical research
Vitamin A has strong clinical evidence for skin benefits. Essential for vision via retinal pigment formation; toxicity risk above RDA in preformed retinol, not beta-carotene Learn more
