I would recommend using a clarifying shampoo followed by a deep conditioning treatment.
Semi-permanent beard dye formulas wash out rather than grow out. It will need touchups every few weeks as it fades. Your beard hairs are more coarse and do not absorb dye as well as head hairs.
Does Beard Dye Wash Out Of Hair?
Semi-permanent beard dye formulas wash out rather than grow out. It will need touchups every few weeks as it fades. The process here can be difficult because your beard hairs are more coarse and do not absorb dye as well as your head hairs. 
How Do I Remove Dye From My Beard?
Rub alcohol onto a cotton ball or cotton pad to remove dye. It’s best to apply it to the stained portion of your skin. Warm water and soap should be used to rinse the area after the dye is off. 
Can Permanent Hair Dye Be Removed?
Baking soda has lightening properties and can be used to remove permanent hair dye. Baking soda and lemon juice can be used to make a paste. Allow the paste to sit for five minutes and rinse thoroughly. 
Is Beard Dye The Same As Hair Dye?
It’s not the best option to use hair dye on your beard. You can’t guarantee that hair dye will work on your face because the skin on your face is more sensitive. 
Is Just For Men Color Permanent?
Is coloring my hair time consuming? No. The process only takes a few minutes, and since all of our products are permanent, you only have to use it when the gray grows back. 
Is Just For Men Beard Color Permanent?
For a short beard, you’ll get 2 uses out of the two-step formula, where you blend the developer and dye together before brushing them into your whiskers. After a month or two of opening the tiny tubes, you might notice that they’ve lost their color. 
Frank Harmenstein is the lead editor of the grooming website Cut Throat Straight Razor, and has over 15 years of experience in the industry. He’s personally tested and reviewed over 200 different straight razors, and has written countless articles on the subject.