Watch for Drying Alcohols

Many styling products contain drying alcohols like isopropyl alcohol and ethanol, which can strip moisture from hair, leading to brittleness and frizz. It’s important to distinguish these from fatty alcohols (e.g., cetyl alcohol, stearyl alcohol), which are actually hydrating and beneficial for hair health. To keep your strands nourished, avoid products listing drying alcohols near the top of the ingredient list and instead opt for formulas enriched with fatty alcohols or natural moisturizers. For further details on alcohols in hair care, visit Healthline’s guide to alcohol in hair products.