4What Are Potential Side Effects of Retinol and the Recommendations for Intake of Retinol?
Certain strong retinol medications, such as Accutane and Retin-A, may cause several possible side effects. Therefore, people with easily irritated or sensitive skin should start using these products with caution. If you are going to use them for the first time, some common issues may occur, such as skin peeling, dryness, or redness. More irritation, such as scaly patches or itchiness, may happen when you apply retinol at a too high strength or more frequently than needed. In some cases, there may be acne breakouts, but this side effect is quite rare. [5]
For adult men, the recommended daily intake of retinol is around 900 micrograms. For adult women, this amount should be around 700 micrograms. Lactating and pregnant women are advised to take up to 1,300 micrograms and 770 micrograms of retinol per day, respectively. In some products, the labels may use the international unit or IU. You may easily convert with the formula: 1 microgram = 3.3 IU. You can meet the recommended daily intake through retinol supplements or food in the diet. [6]
