black tea powder and indigo powder can be used to make natural black hair dye. The following are the specific steps:

Tools needed: black tea powder, indigo powder and coconut oil.

1. First, take a clean container.

2. Add two black tea powder zhidao spoons, which aims to play the role of color matching.

3. Add two spoonfuls of coconut oil as mixed solvent.

4. Add two spoonfuls of indigo powder. Under the mixing action of coconut oil, black tea powder and indigo powder will be tinted into black.

5. Stir evenly, which shows that the more you stir, the darker it becomes.

6. That's it. You can take it whenever you need it. It can be seen that the self-made hair dye is natural, the color is positive and the effect is good.

Extended information:

Precautions for using hair dyes

1. It is recommended to have a skin test before each use. The general test site is suggested to be the skin behind the ear, and a small amount of evenly mixed hair dye products are taken for testing. If the skin test method has been specified in the manual, please follow the instructions.

2. Ensure the use interval and avoid the occurrence of adverse reactions/incidents caused by excessive and frequent use.

3. The proportion of hair dye and oxidant should be strictly in accordance with the requirements of the instructions to ensure that all components can be effectively neutralized.

4. Hair dyeing cosmetics should not be used in other parts except hair, and hair dyeing and perm should not be carried out at the same time.

5. If there have been any adverse reactions/incidents of hair dyeing cosmetics in the past, avoid using the same product again.

6. Wear gloves, earmuffs and other protective measures when using, and avoid contact between hair dyeing products and skin when dyeing hair.

7. Pay attention to the usage of hair dyeing products, so as to meet the dyeing needs, and it is not easy to use them too much.