@BlueRevolution Hair? Maybe. Scalp, less likely.
Oils do cover the *signs* of dandruff, yeast infections, ringworm, etc. It doesn't mean they're not there or that they "got better".
These things lead to hairloss eventually.
Seeing a dermatologist or trichologist is far more expensive than actually washing your scalp. The minimum is once every 5-7 days. More frequent is better.