I have some 'gunk' issues. The thing is, I don't know what the gunk is...
The day after I wash my hair, there is relatively nothing. A few small flakes at the hairline that are just white and will flutter out of my hair if I brush at it with my hand. The next day if I scratch my scalp with a fingernail, I get a small amount of whitish substance. It is powdery but oily at the same time. The day I wash (when my hair is it's dirtiest) the oily substance is very pronounced and I can scratch up quite a bit and my scalp itches.
How do I know if it's buildup, dandruff, sebum or something else?
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