Skin irritation: Tretinoin can cause redness, dryness, itching, and peeling of the skin, particularly in the first few weeks of use. This is often referred to as a "retinoid reaction."
Increased sensitivity to sunlight: Tretinoin can make your skin more sensitive to sunlight, increasing the risk of sunburn. It's important to use sunscreen and avoid prolonged sun exposure while using tretinoin.
Stinging or burning sensation: Some people may experience a mild stinging or burning sensation when applying tretinoin.
Temporary worsening of acne: Initially, tretinoin may cause an increase in acne lesions before improvement occurs. This is often referred to as a "purging" period.
Dryness and flakiness: Tretinoin can dry out the skin, leading to flakiness or peeling, especially in areas where it's applied.
Changes in pigmentation: In some cases, tretinoin can cause changes in skin pigmentation, leading to temporary or permanent darkening or lightening of the skin.
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