Best shampoo for Dandruff
Nizoral (Ketoconazole 1% ingredients)

To be used :
2x a week, not more than that.

Why I like it?
After suffering from on/off dandruff for 18 years, Nizoral wiped my dandruff away in 1 single wash. Totally free of dandruff.

Beware..
If you have dandruff it means your scalp produces alot of sebum which turns to dandruff (dry flaky ones or the smelly oily residue type)
Nizoral is very drying to the scalp, thus you need to use just a little bit, the size of 20 sen or less and lather up your hair, leave on for 3-5 minutes and then rinse. Do not apply any conditioner, except for hair ends if you have super long hair. Because Nizoral is too drying, your scalp will produce more oil, you will notice after 2nd week of usage that your scalp even more oilier. How?

To control oiliness
Put some pure Apple Cider Vinegar on your head 15-30 minutes before you wash, this will rid of the oil on your scalp. Then wash normally with SLS-free shampoo or just plain water.

Main cause of hair thinning and hair loss
SLS/ALS/*LS contained in shampoo. Find organics/natural without these ingredients.

Try the following routine

Monday / Nizoral shampoo
Tuesday / Rinse with water
Wednesday / ACV + rinse with water
Thursday / Nizoral shampoo
Friday / Rinse with Water
Saturday / ACV + Rinse with water
Sunday / Rinse with water

Scalp treatment
Aloe vera gel directly from plant > cut and apply on the scalp > leave to dry.

Supplement
Organic black sesame > add on drinks, food etc.