Just sharing a method that worked for me.
When you wash:
- Wash your scalp thoroughly with water only.
- Apply any shampoo/conditioner that you normally use, but don’t get it on your scalp. This may involve dragging the shampoo along your hair with your fingers. (A tiny bit will inevitably get on your scalp - don’t aim for perfection, just go carefully.)
- Wash out products.
3. Repeat above, starting with your normal frequency, but gradually spacing out the shampoo/conditioner use. Use it as often as required to avoid a greasy look/smelliness.
4. Eventually you can drop the shampoo/conditioner altogether.
My theory as to why this worked for me: a scalp over-produces sebum when you use harsh detergents. So, simply stop using these products on your scalp. Your scalp doesn’t “know” that you are still using them on your hair, so it ramps down the sebum production. Then you can give up the shampoo/conditioner. Hope this helps someone!