RootDerma Scalp Care

Pool hair has a way of making summer feel unfair. You go for a swim, sit in the sun, rinse off quickly, and expect your hair to act normal later. Instead it feels dry and stiff. Sometimes just oddly heavy at the roots. The easy villain is chlorine, but chlorine's not the whole story. Most of what makes hair feel rough after a pool day isn't the chlorine itself. It's what happens before and after: dry hair soaking up pool water, wet hair baking in the sun for hours, a tight bun locking it all in until bedtime. Fix that order, and the pool stops feeling like the enemy. Is Chlorine Really the Problem? Chlorine isn't in the pool to attack your hair. It's there to help keep the water safer and cut down on germs, and that doesn't change just because your hair happens to be in the water too. Pool water can still leave hair feeling dry or rough, especially after repeated swimming. But it's rarely one dramatic swim day that does it. It's the pattern: sw...

You move into a new apartment, or maybe just spend two weeks somewhere else, and suddenly your hair feels wrong. The shampoo is the same. The conditioner is the same. Your styling routine didn't change. But your roots feel coated faster, your ends feel rougher, your curls don't bounce the same way, or your color looks dull before it should. In many cases, the answer is yes. Hard water doesn't usually harm hair on its own, but the minerals in it can change how shampoo foams, how conditioner rinses out, and how quickly a routine that worked in one home stops working in another. If your hair started feeling coated, dull, or harder to style around the same time your shower changed, it's worth checking your water before you replace every product on the shelf. Is Hard Water Actually "Dirty" Water? Hard water sounds like water that's harsh, unsafe, or bad. That's not quite the right way to think about it. Hard water usually just means the water car...

Does Cold Water Really Close Your Hair Cuticles? You finish washing your hair, then flip the shower to cold for the last few seconds. You've heard it closes the cuticle. Warm water opens the hair, cold water shuts it, and everything ends up smoother. It's a tidy explanation. It's also too tidy. Hair cuticles don't swing open and shut like little doors, and a cold rinse isn't the switch that fixes rough hair by itself. Here's the honest answer: no, cold water doesn't seal your cuticle shut. What it usually does is stop you from ending your shower with water that's too hot, and that alone can explain why your hair feels a little smoother afterward. The temperature isn't doing the sealing. Avoiding damage is. The Cuticle Isn't a Door You Can Shut The cuticle is the outer layer of each hair strand. Picture roof shingles overlapping down the length of the hair. When they lie flat, hair catches light better and feels easier to manage. When the...