In some cases, box dies may be missing spots or not give you the results you expect. It’s natural to think about re-dying your hair again the next day to immediately fix the problem.
If there’s still some dye left, starting over the next day seems like an affordable and easy solution.
But can you actually safely dye your hair with box dye for two days in a row? Also, is it okay to reuse box dye?
Is it safe to reapply box hair dye the next day?
No, you don’t have to box-dye your hair again the next day. To maintain the health of your hair, you need to take breaks between uses.
Hair color can damage your hair if not applied correctly. Your hair can become brittle, dry, and break.
How soon can I dye my hair a box color again?
Generally, we recommend waiting at least 4 to 6 weeks between applications of boxed hair color. However, if you need to correct a color mistake or slightly adjust the shade, we recommend waiting at least 15-17 days.
In the meantime, you can use conditioning treatments to restore moisture and strength to your hair.
This waiting period allows your hair to recover from chemical treatments and reduces the risk of damage such as dryness, breakage, and split ends.
For permanent box dyes, we recommend waiting longer (at least 3 weeks) before making another application. That’s because it contains powerful chemicals such as PPD (p-phenylenediamine), PTD (p-toluenediamine), phthalates, sodium lauryl sulfate, resorcinol, quaternion-15, and titanium dioxide.
Can I reuse the leftover boxed hair color after a day?
Unused and untouched boxes of hair color can be reused the next day. However, the remainder mixed with peroxide (developer) cannot be reused.
The longer you leave it on, the more damage it can cause to your hair. After a day, the mixture may lose its potency, resulting in poor color finish and uneven coverage.
If you are using a boxed permanent hair dye, the mixed dye should be used within an hour. Because the chemicals in dyes can break down in ways that are harmful to your hair and can cause damage and unexpected reactions.
The chemical reaction of permanent dyes begins as soon as the ingredients are mixed. This reaction is very important for the color to develop and adhere to the hair.
Semi-permanent dyes usually do not contain a developer and rely on depositing the color onto the hair shaft. Therefore, although it is possible to use the leftover dye mixture within 24 hours, it is still not recommended as the quality and effectiveness of the dye may decrease.
summary
Therefore, there is no need to reapply box hair dye two days in a row. To keep your hair healthy and strong, you need to take breaks between hair applications.
The minimum interval between hair dyes must be at least 15 days. Hair dye left in the box can be reused as long as it is not mixed with hydrogen peroxide and stored safely in an airtight container.
