What Does Brandon Marsh Put In His Hair?
Brandon Marsh's hair is so greasy that it always appears soaked in wet. Marsh once stated that he washes his head with water in between innings since he like wet hair.
He claimed that when things are allowed to dry, they become bristly which he finds irritating. He prefers to keep it damp, but not in the way that looks after a recent wash.

His choice of styling is not unique, many athletes appear to be constantly wet. The baseball player wet his hair at least 15 times every day.
Marsh hasn't had a haircut since going to the City of Brotherly Love; his most recent cut was during the All-Star break, a few weeks before his trade to Philadelphia. He has added exceptional center-field defense, a quick rush of speed on the basepaths, and the occasional huge blast.
He Uses Shampoo Once A Month
Brandon Marsh's hair always seems to be wet on the field because he maintains it wet. Marsh doesn't like shampoo much, yet he keeps his hair wet on the field.
He revealed to Fox Sports that he doesn't feel the need to wash his hair all that frequently. Marsh doesn't make a big deal out of shampooing his hair once a month either.
The outfielder doesn't use any additional cosmetics, so his shoulder-length hair doesn't receive any gel, creams, or conditioners. Even though he has a unique hair care routine, his teammates don't seem to mind.