Why is tretinoin used in topical retinoids?

Tretinoin is a vitamin A derivative applied directly to the skin. It helps normalize the way cells within a pore shed, which can reduce the formation of comedones and support acne care. With continued use, it can also encourage more orderly surface renewal and soften the look of fine texture and uneven tone. Irritation is common when treatment begins because the skin is adjusting; visible improvement develops gradually rather than immediately.

Apply a thin amount to clean, fully dry skin as directed, usually in the evening. Start with the schedule your clinician recommends, use a bland moisturizer, and protect exposed skin from sunlight. Avoid applying it to cuts, eczema flares, or sunburned skin. Do not combine it with multiple irritating exfoliants unless advised. Discuss pregnancy, plans to become pregnant, breastfeeding, and other acne products with your clinician before starting or continuing treatment.

Ask for medical advice if swelling, severe burning, blistering, or crusting develops, or if irritation prevents normal daily care. Worsening dark patches, a widespread rash, or eye exposure also warrants a prompt review. Mild dryness and peeling may occur, but persistent discomfort can mean the frequency, product combination, or diagnosis needs reassessment.

Ask what strength and schedule fit your skin, which products should be separated from tretinoin, and how to manage dryness without stopping unnecessarily. Clarify when to expect a review, whether your marks are acne-related, and what pregnancy precautions apply to your situation.