Another adverse reaction that can happen with over the counter retinoids, but more commonly with prescribed retinoids: retinoid dermatitis. Characterised by rough skin texture and irritation, it’s a possible side effect of using the topical treatment.

“Retinoids are a helpful ‘active’ skincare ingredient and are often prescribed by dermatologists to address a number of common skin concerns including acne, excessive oil production and ageing of the skin,” explains Dr Catherine Borysiewicz, consultant dermatologist at the Cadogan Clinic.

“As they are only available on prescription the products have a deeper penetration into the skin than other over the counter products such as retinol. Although they are great when introduced and used carefully as advised by your doctor, as a product they can be very irritating to the skin.”

So, what is retinoid dermatitis and why does it happen? Read on for your full guide to dealing with the skincare condition caused by retinoids.

Retinoid dermatitis is a possible side effect of over the counter retinoids: here’s what a dermatologist wants you to know