It can take weeks or even months of using the right dandruff shampoo to see a significant improvement in your dandruff. However, everyone is different, so some people may see results in as little as a few days. The key is to be patient and consistent with your dandruff treatment.
If you're using a dandruff shampoo with zinc pyrithione, selenium sulfide, ketoconazole, or climbazole, you should start to see a reduction in dandruff within a week or two of use. If you don't see any improvement after two weeks, try a different dandruff shampoo.
If your dandruff is caused by dry skin, you may need to use a dandruff shampoo that contains moisturizing ingredients like jojoba oil or tea tree oil. These ingredients can help to soothe and hydrate your scalp, which can reduce the symptoms of dandruff.
It's important to remember that dandruff is a chronic condition, so it's important to find a dandruff shampoo that works for you and stick with it. Don't give up if you don't see results immediately. With time and patience, you can get rid of your dandruff for good.