Caffeine and Nicotine Effects

Caffeine's impact on skin color is more about beverage temperature than caffeine content itself, with hot drinks potentially exacerbating redness, especially in those with rosacea. Nicotine, however, is a known vasoconstrictor that can lead to premature aging and poor healing in smokers. While vaping shows similar skin effects as smoking, nicotine gum and patches pose less risk due to lower concentrations reaching the skin.