People need to wash their hair to remove excess hair oil and grime; dry shampoo can be a temporary fix for greasy hair. Most people need to wash their hair every two to three days, but how often people need to wash their hair is based on many factors such as hair type and environmental conditions.
According to John Frieda, “Hair produces a natural oil called sebum, which provides moisture and protection for the scalp and hair.” Sebum is beneficial in appropriate amounts, but when it’s accumulated, it can cause grease and harmful hair conditions. According to Jasmine, a Skyline student with knowledge about hair care, “Your scalp adjusts the amount of sebum it produces by how dried out it feels.” When shampoo is used, it helps wash away excess sebum, grime, and product residue.
Dry shampoo can be used to replace shampoo when people are short on time, but it’s not a long-term solution. According to Miah, a Skyline student who occasionally uses dry shampoo, “To some extent, depending on the brand of dry shampoo, they’re effective to absorb oil from your hair.” Dry shampoo merely absorbs oil from your hair to improve its appearance, without removing oils and particles.
Hair type affects how often people need to wash their hair. Thinner hair tends to become greasy easily and could be washed one to two days. On the other hand, individuals with thick and coarse hair only need to wash their hair every one to two weeks.
Environmental and physical conditions also impact the number of times people should wash their hair. In areas with a lot of pollution and dirt, individuals may need to wash their hair more frequently. Additionally, individuals who sweat often need to increase the number of times they wash their hair.
For more information:
How often should I wash my hair?
