Day Creams & moisturisers are formulated to protect our skin from daily aggressors such as UV rays and pollution whilst hydrating and addressing specific skin type needs. Day moisturisers are generally lighter-weight and are often designed to be applied underneath make up. Night Creams are formulated to replenish and assist with cell renewal, most of which occurs naturally whilst we sleep and do not contain sun filters. Moisturisers formulated for night tend to have richer formulas that will not sit well under makeup or include sun sensitive ingredients.