Warning: We recommend only using 40 volume developer under the guidance of a colorist, as it may have detrimental effects on your hair strands. With its high peroxide level (12%), 40 volume developer can lighten your hair up to four shades.
In this case, do not leave the bleach in your hair for more than 30 minutes. However, the process becomes more complicated if your hair is very dark and you want blonde hair. The exact amount of time depends on your natural hair color and your desired result.įor instance, if you have brown hair and want to lighten it a bit, fifteen minutes will more than likely be enough. You should leave 30 volume bleach in your hair for no longer than 15 to 30 minutes.
Let’s get into it! How Long Should You Leave 30 Volume Bleach in Your Hair In this article, we’ll share with you how long you should leave 30 volume bleach in your hair. While 30 volume bleach will lighten your hair up quickly, it’s so important not to leave it in too long. Looking for a drastic hair change? Using 30 volume developer and bleach is one of the most efficient ways to lighten up your dark natural curls.