Dear M.E.B.: I think many media sources avoid the complexity of the issue. The preferred unit to describe doses of vitamin A are now micrograms RAE, or “retinol activity units.” Different vitamin A ...

After 20 surgeries to remove skin cancers from his face, New York-based journalist John Koten decided to start taking better ...

If I am taking vitamin A, what is a reasonable dose? I have seen reports that taking too much can cause liver damage, but ...

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

Women who might become pregnant should be especially cautious with vitamin A supplements or avoid them entirely .

If I am taking vitamin A, what is a reasonable dose? I have seen reports that taking too much can cause liver damage, but nobody says how ...

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

This Amazon Prime Day save on anti-aging beauty deals like Nicole Kidman's hair serum, Julia Roberts's hand cream and Halle ...

Looking for magic in a bottle? Just a few drops of these expert-recommended vitamin C serums will make your skin look brighter, healthier, and younger in no time.

From hair thickening shampoos to retinols and vitamin c, these picks are on sale for a limited time.

The journey to retinol mastery requires patience and strategic planning, especially during summer’s challenging conditions.