When it comes to hair care, shampoos have become increasingly specialized, and two of the most popular types are blue and purple shampoos. Both are designed to help maintain hair health and color, but they work in different ways and are best suited to different hair types. In this article, we’ll take a look at the differences between blue and purple shampoos so you can decide which one is right for you.
What Is Blue Shampoo?
Blue shampoo is a toning shampoo designed to restore the color, vibrancy and shine of blonde or gray hair. It contains a blue or purple dye that helps neutralize any yellow or brassy tones in the hair. Blue shampoo is also sometimes called a “silver shampoo” because of its ability to bring out the silver, gray or platinum tones in gray or very light blonde hair.
What Is Purple Shampoo?
Purple shampoo is a toning shampoo designed to maintain the color and vibrancy of blonde, pre-lightened or highlighted hair. It contains a purple or violet dye that helps neutralize orange or brassy tones in the hair. Purple shampoo is also sometimes called a “blonde shampoo” because of its ability to bring out the golden, honey or wheat tones in light to medium blonde hair.
How Do Blue and Purple Shampoos Work?
Blue and purple shampoos work by depositing the dye molecules onto the hair shaft, where they temporarily attach to the hair and neutralize the underlying yellow or orange tones. The dye molecules are easily removed by rinsing and will not permanently alter the color of your hair.
Which Hair Types Benefit From Blue and Purple Shampoos?
Blue shampoo is best suited for gray, silver, platinum or very light blonde hair, while purple shampoo is best suited for light to medium blonde hair. Both can be used on pre-lightened or highlighted hair, but blue shampoo is not recommended for darker blondes or brunettes, as it can leave a blue or purple tinge in the hair.
How Often Should Blue and Purple Shampoos Be Used?
For most hair types, blue and purple shampoos should only be used once or twice a month. Overusing blue and purple shampoos can lead to dry, brittle hair, as the dye molecules can strip the hair of essential oils and nutrients. It’s also important to use a conditioner after using a blue or purple shampoo, as this will help restore the hair’s moisture balance.
Products to Avoid With Blue and Purple Shampoos
When using blue and purple shampoos, it’s important to avoid products containing sulfates, alcohols and other harsh detergents, as these can cause the dye molecules to break down and become ineffective. Additionally, it’s best to avoid products containing oils, as these can cause the dye molecules to become trapped in the hair, resulting in a blue or purple tint.
Are Blue and Purple Shampoos Safe for Color-Treated Hair?
Yes, blue and purple shampoos are generally safe for color-treated hair, as long as you are careful not to overuse them. However, if you have recently had your hair colored, it’s best to wait at least two weeks before using a blue or purple shampoo.
Are Blue and Purple Shampoos Effective on Natural Hair?
Yes, blue and purple shampoos can be effective on natural hair, but it’s important to select the right one for your hair type. Blue shampoo is best for gray, silver and platinum hair, while purple shampoo is best for light to medium blonde hair.
Can Blue and Purple Shampoos Be Used Together?
Yes, blue and purple shampoos can be used together for a more intense toning effect. However, it’s important to use them sparingly, as overusing both can lead to dry, brittle hair.
Do Blue and Purple Shampoos Contain Chemicals?
Yes, blue and purple shampoos do contain chemicals, such as dyes and surfactants. However, these ingredients are generally considered safe and are milder than those found in other hair care products.
Are Blue and Purple Shampoos Safe for Sensitive Skin?
Yes, blue and purple shampoos are generally safe for sensitive skin, as they contain fewer harsh chemicals than other hair care products. However, it’s always best to patch test the product on a small area of your skin before using it on your entire scalp.
Do Blue and Purple Shampoos Have Any Side Effects?
Yes, overusing blue and purple shampoos can lead to dry, brittle hair, as well as a blue or purple tint in the hair. Additionally, the chemicals in these products can irritate the scalp and cause an allergic reaction in some people.
Are Blue and Purple Shampoos Suitable for All Hair Types?
No, blue and purple shampoos are not suitable for all hair types. Blue shampoo is best suited for gray, silver, platinum or very light blonde hair, while purple shampoo is best suited for light to medium blonde hair. Both can be used on pre-lightened or highlighted hair, but blue shampoo is not recommended for darker blondes or brunettes, as it can leave a blue or purple tinge in the hair.
Can Blue and Purple Shampoos Be Used on Wet or Dry Hair?
Blue and purple shampoos should only be used on wet hair, as they need to be applied to the scalp and worked through the hair for the best results. Applying them to dry hair can lead to uneven application and result in a blue or purple tint in the hair.
Do Blue and Purple Shampoos Require a Special Rinse?
Yes, blue and purple shampoos should always be rinsed out thoroughly with cool water to ensure all the dye molecules have been removed from the hair. Leaving the shampoo in the hair for too long can cause a blue or purple tint, so it’s important to rinse for the full recommended time.
Summary
Blue and purple shampoos are specialized shampoos designed to maintain the color and vibrancy of blonde or gray hair. Blue shampoo is best suited for gray, silver, platinum or very light blonde hair, while purple shampoo is best suited for light to medium blonde hair. Both should only be used once or twice a month, and it’s important to use a conditioner after using a blue or purple shampoo to help restore the hair’s moisture balance. Finally, blue and purple shampoos should always be rinsed out thoroughly with cool water to ensure all the dye molecules have been removed from the hair.
