It is generally best to avoid alcohol consumption the night before combining dermaplaning with a light chemical peel. Alcohol is a vasodilator and a diuretic, meaning it dehydrates your skin and increases blood flow to the surface. When your skin is dehydrated, its barrier function is compromised, making it far more sensitive and reactive to both the surgical blade and active exfoliating acids. This significantly increases your risk of excessive stinging, prolonged redness, or irritation during the peel phase. To ensure your skin responds optimally to your treatment and heals quickly, stick to water and electrolytes the evening prior to your appointment.