You can use shampoo before washing your hair with Platycladus orientalis leaves. After washing your hair with Platycladus orientalis leaves, you need to rinse it with clean water. The specific method is as follows:

1. Take 100 grams of fresh Platycladus orientalis leaves, soak them twice with water, and cut them into small sections.

2. Add 2000 ml of water to the treated Platycladus orientalis leaves and simmer over low heat for 30 minutes.

3. After the water from the fried Platycladus orientalis leaves is cooled naturally, use fine gauze to filter out the medicinal solution.

4. After cleaning your hair with regular shampoo, pour the solution into your palms, rub it directly on your hair gently, and leave it for 15 to 20 minutes.

6. After rubbing the hair according to the above method, rinse the hair with clean water.

Reference materials:

People's Daily Online - Hair Shampoo: Chinese Valentine's Day Customs and Traditional Chinese Medicine for Black Hair