Don't dye at the same time. Because dyeing is carried out at the same time, the dyeing effect is poor. Moreover, putting the potion of dyeing hair and perming hair together will not give the hair and scalp a moment's rest, and the damage will be doubled.

Extended data:

Matters needing attention in dyeing and perm hair:

First of all, consumers should choose formal and legal channels to buy hair dye cosmetics and buy products with clear labels; The purchase voucher and product packaging information should be kept well;

Check the product name, manufacturer's name and address, net content, ingredient list, production date and shelf life (or production batch number and expiration date), production license number, cosmetic approval number/record number and other information.

When buying imported products, we should also check their Chinese product names and Chinese manufacturers to prevent the occurrence of adverse events caused by fake and shoddy products. Product information can be found on the website of China Food and Drug Administration.

Secondly, you should read the product manual carefully before use, and it is recommended to do a skin test: if the manual indicates that the product is for professional use, consumers are not recommended to use it themselves; According to the instructions, ensure the use interval and avoid adverse reactions/incidents caused by excessive and frequent use;

The ratio of hair dye and oxidant should be strictly in accordance with the requirements of the manual to ensure that all components can be effectively neutralized; Hair-dyeing cosmetics should not be used in other parts except hair, and consumers under 16 should not use them, and hair dyeing and perm should not be carried out at the same time;

If there have been adverse reactions/incidents of hair dyeing cosmetics in the past, avoid using the same product again; Attention should be paid to products with the same brand name. If the color numbers are inconsistent, it means that the formula components are inconsistent and belong to different products. Even products with the same brand and color number may be different in different production batches.

Remind users to pay attention to the color number and production batch number when purchasing products; It is recommended to do a skin test before each use, especially when changing products or buying new products.

The general test site is 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. When the self-test is difficult to determine, it is recommended to consult a professional medical institution.

Thirdly, pay attention to your physical condition and take protective measures: users should check whether the skin on the head and face that is easy to contact with hair dyeing products is damaged, and whether there are erythema, papules and rashes. Whether you are taking drugs that may cause allergies or are in poor health. , and should be suspended in this case;

Wear gloves, earmuffs and other protective measures when using, and avoid contact between hair dyeing products and skin when dyeing hair. Vaseline can be applied to skin parts that are easy to contact with hair dye products. The dosage of hair dyeing products should meet the needs of dyeing and should not be used too much; If the hair dye product accidentally enters the eyes, it should be washed with clear water immediately.

References:

People's Network ensures that the time interval and dyeing are not appropriate at the same time. What should you know about dyeing hair?