Just curious really. I only ever shampoo my hair once, but have recently seen people talking about how important it is to do it twice to ensure hair is properly clean. Some say their hair looks much better as a result too.
I always assumed the instructions to “rinse and repeat” was a way to sell more shampoo. But perhaps that is overly cynical of me?
So what do you do, and why? And if you are a double shampoo-er, would you recommend I start? For context, I only wash my hair every 3 or 4 days but I rarely (like once a month) use any hair products and I rarely even blow dry my hair.