@drheejink: Yes—tretinoin really can do it all. BUT the biggest challenge? Irritation, which makes it hard to stay consistent. Using moisturizer before tretinoin—or the “sandwich method” (before and after)—helps reduce irritation, so you can stay consistent… and that’s what improves acne, tone, texture, and fine lines. #tretinoin #retinoid #dermatologist #drheejink

Dr.Koh Dermatologist

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Region: US

Thursday 09 April 2026 15:12:00 GMT