tretinoína

Tretinoin is a topical medication derived from vitamin A, belonging to a class of drugs known as retinoids. It is widely used in dermatology for the treatment of various skin conditions, most notably acne vulgaris and photoaging. Its mechanism of action involves promoting cell turnover, which helps to unclog pores and reduce the formation of comedones. Tretinoin also stimulates the production of collagen, contributing to improved skin texture and a reduction in the appearance of fine lines and wrinkles.

The application of tretinoin typically involves applying a thin layer to the affected skin once daily, usually at bedtime. Initial side effects are common and can include redness, peeling, dryness, and increased sensitivity to sunlight. These effects are often temporary and tend to diminish as the skin adapts to the medication. It is crucial to use sunscreen regularly when using tretinoin due to increased photosensitivity.

Tretinoin is available in various concentrations and formulations, including creams, gels, and solutions, allowing for tailored treatment based on individual needs and skin tolerance. It is a prescription medication and should be used under the guidance of a healthcare professional. Due to its potential for irritation, it is generally not recommended for use during pregnancy or breastfeeding. Consistent use is key to achieving optimal results, which may take several weeks to become apparent.