tretinoïne

Tretinoin is a topical medication derived from vitamin A, belonging to a class of drugs known as retinoids. It is widely used in dermatology to treat acne vulgaris, photoaging, and certain other skin conditions. Tretinoin works by affecting the growth of skin cells. It helps to unclog pores, reduce inflammation, and promote the shedding of dead skin cells, which can lead to clearer and smoother skin.

When applied to the skin, tretinoin binds to specific receptors within skin cells, influencing their development and behavior. This action helps to prevent the formation of comedones (blackheads and whiteheads) and can reduce the appearance of fine lines, wrinkles, and hyperpigmentation by increasing collagen production and cell turnover. It is available in various concentrations and formulations, including creams, gels, and solutions, and is typically applied once daily, often at bedtime.

Common side effects of tretinoin can include skin dryness, redness, peeling, and increased sensitivity to sunlight. These effects are usually temporary and tend to diminish as the skin adapts to the medication. It is crucial to use sunscreen daily when using tretinoin due to increased photosensitivity. Tretinoin is not recommended for use during pregnancy or breastfeeding. Consultation with a healthcare professional is essential to determine the appropriate use and strength of tretinoin for individual needs.