Don't feel like washing your hair every day? Worried about damaging your hair or scalp? Meet Batiste's dry shampoo. Even astronauts on space missions use it!

Finally, wash day. While this is a great routine to avoid overwashing, product buildup from avoiding shampooing is its own ...

"People are going a week or longer without washing their hair, using sulfate-free shampoo, and aren't getting the cleanse they once were. If environmental debris, product build-up, sebum ...

After years of strategically planning my wash days and fighting ... the gym and then they don’t shampoo their hair—and that DHT sits there, on the scalp, without coming off,” she says.

When washing your hair: Apply shampoo to your entire scalp and lather ... it to build up on the scalp can irritate the scalp: Hair without sebum can feel dry and coarse, and a lack of sebum ...