Retinol is one of the flagship ingredients in dermatology, renowned for its many benefits, particularly in the treatment of acne and the fight against signs of aging . This derivative of vitamin A stimulates cell renewal and improves skin texture. However, despite its undeniable virtues, there are situations where the use of retinol may be contraindicated or even dangerous. Knowing these circumstances is crucial to avoid side effects or complications.
During pregnancy and breastfeeding
One of the main contraindications to retinol use is for pregnant or breastfeeding women . Vitamin A derivatives , including retinol and retinoic acid , can cause birth defects when used during pregnancy. All-trans retinoic acid , used under prescription for severe conditions like nodular acne, is particularly dangerous. Even milder forms, such as retinyl palmitate , should be avoided as a precaution. For pregnant women looking to treat signs of aging or dark spots , gentler alternatives, such as vitamin C or fruit acids (AHAs), are recommended.
Sensitive or reactive skin
Sensitive skin often reacts poorly to retinol . This powerful active ingredient can cause redness, irritation, and even flaking, which worsens the condition of reactive skin . Symptoms of intolerance include burning sensations, extreme dryness, and excessive flaking. To reduce these risks, it is advisable to start with a less potent type of retinoid , such as retinol esters , to gradually accustom the skin. It is also recommended to use retinol in low concentrations and to space out applications.
Inflammatory skin disorders
People with conditions such as eczema, psoriasis, or rosacea should avoid using retinol . This ingredient can worsen existing inflammation, disrupting the skin's barrier function . Retinol accelerates cell turnover , which can exacerbate redness and flaking in sensitive skin . Additionally, inflammatory skin disorders often require gentle treatments to prevent worsening.