1. Understanding Natural Hair Pigmentation:
* Melanin: The pigment responsible for hair color. There are two main types:
* Eumelanin: Produces brown and black pigments. Higher concentrations result in darker hair.
* Pheomelanin: Produces red and yellow pigments. All hair has some amount of pheomelanin. Blondes have mostly pheomelanin and very little eumelanin. Redheads have a high concentration of pheomelanin.
* Level: Refers to the lightness or darkness of the hair. It's usually measured on a scale of 1-10, with 1 being black and 10 being the lightest blonde.
* Undertones: The underlying pigments that become visible when you lighten the hair. These are typically red, orange, and yellow. Darker hair has more red undertones, while lighter hair has more yellow.
2. How Natural Pigmentation Impacts Color Selection:
* Starting Level: Your starting hair level is the *foundation* for any color change. Think of it like painting a wall: you need to consider the existing wall color before applying a new coat.
* Going Darker: Generally easier than going lighter. Darker colors will effectively cover lighter natural shades. However, underlying warmth (red/orange) in darker hair can still influence the final result, potentially making it appear warmer than intended.
* Going Lighter: Requires lifting (removing) your natural pigment using bleach or a high-lift color. The amount of lift needed depends on your starting level and the desired lightness. This is where undertones become REALLY important.
* Undertones and Color Formulation:
* Neutralizing Undertones: Colorists use toners to neutralize unwanted undertones exposed during lightening. For example:
* Orange undertones: Neutralized with blue-based toners.
* Yellow undertones: Neutralized with violet-based toners.
* Red undertones: Neutralized with green-based toners.
* Adding Undertones: Sometimes you *want* to enhance warmth. In this case, the color formula will include warm tones like gold or copper.
* Color Deposit Only (Demi/Semi-Permanent): These types of colors can only deposit color, they cannot lighten. They are best for adding tone, depth, or covering grays that are not resistant. The final color will be a result of the dye *combined* with your natural color. They are usually best for going darker or maintaining a similar tone.
* Permanent Hair Color: Can lift and deposit color. The ammonia opens the hair cuticle allowing the dye to penetrate. It is best for going lighter and covering resistant grays.
* Gray Hair: Gray hair lacks pigment, so it will absorb color more readily. This means colors can appear brighter or more intense on gray hair. Also, gray hair can be more resistant to color, requiring special formulations or techniques for proper coverage.
Examples:
* Example 1: You have dark brown (level 3) hair and want to go platinum blonde (level 10).
* This is a *major* color change. You will need to lift your hair multiple levels, which will expose significant red and orange undertones. A professional colorist will use bleach strategically, followed by toners to neutralize the warmth and achieve a cool, platinum blonde. This process is damaging and requires patience and expertise to avoid excessive damage.
* Example 2: You have light brown (level 5) hair and want to go a medium ash blonde (level 7).
* You'll need to lift your hair two levels, which will likely expose yellow/orange undertones. A toner with violet/blue pigments will neutralize these tones and give you the desired ash blonde result.
* Example 3: You have medium blonde (level 7) hair and want to go a rich chocolate brown (level 4).
* This is a relatively easy change. However, a colorist might use a formula with red or gold tones to "fill" the hair and prevent it from turning muddy or green. This is because going from light to dark can sometimes result in the hair absorbing too much cool pigment.
Why Professional Help is Often Necessary:
* Complex Formulations: Achieving the desired color often requires a blend of multiple tones and developers.
* Hair Health: Professional colorists understand how to minimize damage during the coloring process.
* Accurate Assessment: They can accurately assess your hair's level, undertones, and overall condition.
* Experience: They have experience working with various hair types and color scenarios.
In summary, understanding your natural hair pigmentation is crucial for selecting the right hair color and achieving your desired results. Whether you're going darker, lighter, or simply adding tone, considering your starting level, undertones, and hair condition is essential. If you're considering a significant color change, especially one that involves lightening, consulting a professional colorist is highly recommended.