Hair that is longer than your shoulders, or is extremely thick, will require more dye than what's in just one box. Prepare both boxes together at the same time.  It's better to have too much hair dye rather than having not enough to cover all of your hair. You can also purchase the dye and developer separately from specialty hair product stores. This is where you will combine your hair dye products, and what will keep it all contained. Never use a metal bowl as it can oxidise the dye, which means that your hair color might not change.  Metal bowls can also cause hazardous chemical reactions. If you dye your hair regularly, having a dedicated bowl is best. This will protect the surface from the dye. Make sure that you move everything out of the way so that the surface is flat. If you're using a towel, pick a towel that you don't mind getting stained. A dark colored towel is another option if you don't have an old towel or newspaper. It will adequately hide stains that are caused by the dye. If you purchased a box of hair dye, then it's likely that a pair of gloves will have been included in the pack. Put the gloves on before you begin mixing the dye and developer, as this will protect your skin from the chemicals.  This will also help to prevent your skin from getting stained by the dye. Now is also a good time to drape an old towel over your shoulders to protect your clothes when it comes to applying the hair dye. You could also wear an old t-shirt. The ratio of hair dye to developer will be specified in the instructions that come with your hair dye package. Following the correct ratio is crucial for your hair to be dyed properly. If you buy a box of packaged hair dye, then the box will normally have the correct ratio in each unit of dye and developer. However if you buy the dye and developer separately, you will have to measure these out. Using a small set of scales will help. Mix these together until the mixture is smooth and consistent in color and texture. You can also use a silicone mini whisk to achieve the same result.  Never use metal utensils to mix together the dye and developer. The dye and developer can easily clump together using a brush, which means that the final consistency might not be as smooth or well combined.
अगर आपके लम्बे और रूखे बाल हैं तो हेयर डाई के दो बॉक्स खरीदें: डाई और डेवलपर को मिक्स करने के लिए ग्लास या प्लास्टिक का बाउल लाएं: जहाँ आप हेयर डाई को रखेंगे वहां पुरानी तौलिया या अख़बार रख लें: लैटेक्स या  प्लास्टिक के ग्लव्स पहनें: हेयर डाई और डेवलपर को 1:1 या 1:2 अनुपात में मिक्स करें: एक प्लास्टिक फोर्क की मदद से डाई और डेवलपर को मिक्स करें: