Yes, using ceramides at night allows them to work while your skin naturally repairs itself. Night creams with ceramides help to replenish the skin's barrier, leading to increased hydration and reduced signs of aging while you sleep.

The 'best' ceramide cream depends on individual skin type and needs. Look for creams with a blend of ceramides (NP, AP, EOP are common), fatty acids, and cholesterol, as these ingredients work synergistically to strengthen the skin barrier. Consider brands like CeraVe, Paula's Choice, and Dr. Jart+.

Ceramides and retinol serve different functions. Ceramides focus on barrier repair and hydration, while retinol boosts collagen production and cell turnover. They can be used together in a skincare routine; ceramides can even help mitigate potential irritation from retinol.

Ceramides are generally well-tolerated and can be mixed with most ingredients. There are no known ingredients that *cannot* be mixed with ceramides. However, monitor your skin's reaction when introducing new products to your routine.