Factors to Consider:
* Desired Outcome: What are you hoping to achieve? Do you want to completely cover the highlights and have a uniform color, or do you want to tone them and blend them more? The goal will determine the best approach and product choice.
* Porosity: Highlights can make the hair more porous, especially if they were done with bleach. Porous hair absorbs color quickly, and sometimes unevenly. This can lead to the color grabbing darker or differently on the highlighted areas.
* Color Choice: The new all-over color should be carefully chosen based on your current hair color, the tone of the highlights, and your desired end result. A color that is too dark can make the highlights disappear completely, while a color that is too light might not provide enough coverage.
* Underlying Pigments: Bleach lifts the natural pigment from your hair, revealing underlying tones (often red, orange, or yellow). If the new color doesn't account for these underlying tones, you could end up with an unexpected or brassy result.
* Hair Condition: Bleaching can dry out the hair. Assess the hair's condition before applying more chemicals. Deep conditioning treatments may be needed before and after coloring.
Possible Approaches & Things to Keep in Mind:
* Using a Demi-Permanent or Semi-Permanent Color: These types of colors deposit color without lifting, making them a good option for blending highlights and adding tone without causing further damage. They fade over time. Choose a color close to your natural base color or slightly darker.
* Using a Permanent Color: This option provides the most coverage and can completely change the hair color. However, it can also be the most damaging, especially on previously highlighted hair. If you choose a permanent color, it's best to select a shade that is close to your natural base color to minimize the risk of banding or uneven color.
* Color Fill (if going darker): If you are going significantly darker than your highlights, a "color fill" might be necessary. This involves applying a color with warm undertones (like red or orange) to the highlighted areas first to replace the missing pigment. This helps prevent the hair from turning muddy or green when the final color is applied.
* Toning: If you like the highlights but just want to tone down brassiness or adjust the tone, a toner is a good option. Toners deposit pigment to neutralize unwanted tones and add shine.
* Strand Test: Always do a strand test before applying the color to your entire head. This will allow you to see how the color takes to your hair and adjust accordingly. Apply the color to a hidden strand of hair (like underneath) and check the results after the processing time.
Recommendation:
* Consult a Professional: The best advice is to consult a professional hairstylist. They can assess your hair's condition, porosity, and underlying pigments, and recommend the best color and application technique to achieve your desired outcome while minimizing damage. They can also perform the color fill if necessary and are trained to avoid unwanted tones.
* If DIY, proceed with caution: If you decide to color your hair at home, do thorough research, choose your product carefully, and always do a strand test! It's also helpful to watch tutorials and read reviews.
In summary, putting an all-over color on highlighted hair is possible, but it requires careful planning and consideration to achieve the desired results and avoid damage. Consulting a professional is always the safest bet!