The 6 Most Common Hair Problems and How to Fix Them, According to Pros From drying to styling to coloring, your hair strands go through a lot. Here, experts give us tips for healthy hair despite the damage done. Chemical Harm— Use protein treatments on your hair to make it strong, but be patient. The process can take up to a year. Congested Scalp— Hair follicles can get clogged from product buildup, so use an exfoliating scalp scrub to help clear it out. Dullness— Use a leave-in conditioner to help smooth the cuticle and promote shine. Frizz— Opt for a styling product that will seal the cuticle and protect it, and try to avoid touching your hair. Heat Damage— Styling tools that are too hot can burn the cuticle, so dial it down to around 200°F and work your way up. Hair Loss— Try to reduce stress, which can lead to hair thinning, and prioritize rest and good nutrition. Friction— Wrap hair in a soft microfiber towel after washing, and swap tight elastics for silk scrunchies.