Not all flakes are the same.
Some flakes are caused by dryness, while others are linked to excess oil, irritation, or dandruff. Because the causes can be different, the best approach depends on what's actually happening on your scalp.
If flakes are persistent, severe, or accompanied by redness or pain, it's a good idea to speak with a healthcare professional.
The takeaway: Flakes are a symptom, not a diagnosis.