Retinol is a popular skincare ingredient loved for its smoothing and skin-renewing benefits. In K-beauty, it is often used in gentle, hydrating formulations designed to be kinder to skin while delivering its smoothing and brightening effects. Retinol helps refine the look of skin texture, soften the appearance of fine lines and promote a more even-looking complexion. Many K-beauty products combine retinol with soothing ingredients like hyaluronic acid and centella asiatica to keep skin feeling balanced and nourished. If you're new to retinol, start slowly, use it in the evening and always follow with SPF by day. Retinol is not recommended during pregnancy or while breastfeeding.