Make the switch

When switching from typical shampoo in a bottle to a shampoo bar (which is actually not a shampoo but soap), your hair may need some time to adjust to the change. It might be a week or two of somewhat messy hair but it’s worth the effort.

Shampoo removes the natural oils that are produced by the scalp to protect the hair. Which is a reason for the scalp to produce more oils.
When you’re switching to a shampoo bar, your scalp adjusts by going back to a more natural oil production.
And the great thing about all this is, that your hair requires washing a lot less often.
A shampoo bar can safe you time, water, and money.