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What is the optimal frequency of retinol use?

Retinol is a potent active ingredient derived from Vitamin A. In the skin, it provides various benefits: it helps combat signs of aging and improves the skin's appearance. Indeed, it is highly sought after for reducing wrinkles, age spots, and blemishes. But how often should it be used to achieve optimal results?

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Published January 6, 2023, updated on February 20, 2024, by Stéphanie, PhD, Doctorate in Life and Health Sciences — 3 min read

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Retinol

According to numerous scientific studies, the retinol is known to have beneficial effects on the skin. A study published in the Dermatologic Surgery journal revealed that daily use of retinol can help reduce wrinkles, fine lines, and brown spots.

However, retinol is also known to have a long list ofpotential side effects, such as irritations, redness, dryness, and peeling. Individuals with sensitive or easily irritated skin should use retinol with caution. Indeed, a recent study published in the Cutaneous and Ocular Toxicology journal revealed that excessive use of retinol can lead to adverse effects, such as redness, itching, and scaling. The researchers also found that high concentrations of retinol, when used repeatedly and excessively, can result in skin damage and irritations.

Therefore, it is recommended to use retinol cautiously and according to the needs of the skin and the desired effects. It is advisable to start with moderate use and gradually increase the concentration and frequency of use, that is, start by using retinol once or twice a week, at a concentration equal to or less than 0.2% to assess your skin's level of tolerance. After a few weeks, you can gradually increase the concentration and frequency of use until you find the combination that best suits your skin type.

It is also important to note that the use of retinol can lead to a temporary increase in sensitivity to ultraviolet rays (UVA and UVB). Therefore, it is recommended to use it in the evening and to always apply a broad-spectrum sun protection every day if you are exposed to the sun. This will help protect your skin from damage caused by the sun's rays. It is also important to properly hydrate the skin and use gentle products to avoid irritations.