Maybe you have practiced social distancing for too long and are skipping regular shampoos — or you have been experimenting with bolder styling products trying new looks before a return to society. Changes to your routine can lead to flakes and an itchy head from sticky scalp buildup. Over time dry shampoos, hairsprays, mousses, gels, oils, sweat, and dead skin cause residue accumulation clogging pores and blocking new follicle development. When this happens, your hair thins and can grow at a snail’s pace.