How long to leave in ion hair dye

Once you have your color and developer, it's time to bring them together in harmony. Grab your bowl and pour in the desired amount of ion demi-permanent hair color. Next, add the double amount of developer. For example, if you're using 2 ounces of color, add 4 ounces of developer.

You can treat it like MP and leave it in as long as you'd like. Manic Panic also suggests 20-30 minutes, but I've always left it in overnight. The longer, the better IMO. with fashion color its just a stain so go ahead! I'm planning on dying my unbleached hair with Ion Color Brilliance in Purple this weekend.The instructions say that it is non-damaging and you can't leave it on for too long. So you could apply this a few times until you get your desired color, or leave it on for more than 2 hours. I didn't dare leave it on longer than 2.5 hours, but maybe leaving it in longer would take out a bunch more color? 3 stars because it does work… kinda.Use a small set of scales to weigh out the shades if you aren't using a full unit. 4. Follow the dye and developer mixing ratio. Mix together the 2 different hair dyes that you have already combined, and then add the developer. Combining 2 shades together will double the amount of hair dye that you have.Hey guys! In Today's video I dye my hair a silver/grey color using Ion's Semi-Permanent dye in Titanium. I love how it turned out! I also filmed myself using...Color Fresh. As a general guideline, our original and iconic semi-permanent hair color usually lasts for up to 10 washes, making it the perfect pick for a low-commitment and completely damage-free color boost. However, color intensity also plays a role in how long semi-permanent shades last, so vibrant reds or deeper brunettes, for example ...Natural Hair Color. Generally speaking: If blonde/light brown = fifteen-thirty five minute range should suffice but anything red/dark more time would be neccessary possibly close to forty five minutes - sixty minutes mark then better evaluate based upon response activity detected within 6hrs following treatment completion as some reactions ...

How long you should wait to dye your hair after using Ion Color Remover depends on several factors. For healthy hair in good condition, 2-4 weeks is usually sufficient. Hair that is damaged, dry or breaking will need 4-6 weeks to bounce back. Always evaluate your hair’s current state and feel confident it has fully recovered before applying ...In most cases, leaving hair dye in for an extra 10-15 minutes isn't going to cause any major damage. However, if you leave it in for an extra hour or longer, you may start to see some serious consequences. If you leave hair dye in too long, it can cause your hair to become dry and brittle. This is because the dye can strip your hair of its ...Learn how to color your hair with ion™ Color Brilliance™ Permanent Creme Hair Color!The ion™ Color Brilliance™ palette consists of 47 rich, luxurious shades....How to Remove Hair Dye from Skin. Color Brilliance Stain Remover. If you want something that is easy to use and made specifically for removing hair dye stains from skin, you may want to try Color Brilliance Stain Remover by ion.There are two options of wipes or a bottle.. For a one time use, the wipes are an easy bet.7 Pro Tips for Coloring Gray Hair. When you begin the color application process, first apply the color to the areas where your hair may be most difficult to color. This is usually at the front hairline and at the natural part in your hair. Remember, you don't need to color your lengths and ends every time. Leave on 5 to 20 minutes depending on amount of buildup in the hair. Leave on only 1 to 2 minutes if following a chemical service. Shampoo and rinse after processing, then proceed with chemical service if desired. Always choose a hair dye that's good for gray coverage. Leave the dye in your hair longer. Frequency matters. Wash your hair with gentle, sulfate-free shampoos. pH levels. Space out your wash days. Dry shampoo. Maintain your tone with a color-depositing shampoo. Protect your hair from fading fast under the sun.

This hair color covers and blends gray hair up to 100% without lifting the hairs natural pigment. How long do I leave ion Demi permanent hair color? Standard processing time is 10-40 minutes at room temperature and 10-15 minutes with heat. After processing, rinse hair thoroughly until the water runs clear. Shampoo and style as desired.hi guys!! today im bringing you YET AGAIN another hair dyeing video :P but this time we're *elevating* the experience by using a cream hair dye! sit back and...Here are four reasons why ion is a better choice than wella: 1. Ion technology creates a micro-circulation within the hair shaft, which helps to deliver essential nutrients and minerals to the hair follicle. 2. Ion technology helps to smooth and protect the hair against environmental damage. 3.At first, pre-lighten shampoo with ion Color Defense Shampoo. Secondly, dry the hair. Thirdly, apply the chosen brights shade directly on dry hair. Fourthly, Process for 20 to 40 minutes depending on the level of color depth desired. Finally, Strand test every 5-10 minutes.The question on everyone's mind is: How long should you leave Ion hair dye in? The answer may vary depending on the shade you're using and the desired intensity. As well, as a general guideline, leaving the dye in for about 30 to 45 minutes is recommended. This duration allows the color to penetrate the hair shaft, resulting in vibrant and ...

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Developer is required for permanent and demi-permanent hair dyes to work properly. It activates the color, allows it to penetrate the hair, and makes the results last longer. Most semi-permanent dyes don't require developer, but some still include it to enhance results. Using dye without developer leads to poor, uneven color that quickly ...The duration for leaving ion permanent hair color in your hair entirely depends on the specific product you use, as instructions may vary. It is essential to read and follow the instructions provided on the packaging. However, generally speaking, most permanent hair color products should be left in the hair for around 25-45 minutes before washing it off with cool water and shampoo.Add in ⅓ of a Pure Naturals shade on hair that’s 30%-50% gray and ½ of a Pure Naturals shade for hair that's 50%-100% gray. 2. Cover Stubborn Grays First. You should always apply color to the most stubborn gray hairs first. As they’re more resistant to color, they’ll benefit from the extra development time.The general rule of thumb is to wait at least 48 hours before shampooing after a permanent hair color. This gives the color time to set and prevents it from bleeding out when you wash it. If your salon uses a toner, they may tell you to wait even longer—up to 72 hours—before shampooing. Tags: French Manicure.The Insider Trading Activity of ION Holdings 2, LP on Markets Insider. Indices Commodities Currencies Stocks

Hair color and texture. How long to leave on. blonde hair. 15 to 20 minutes. dark hair. 30 minutes; it’s recommended you split the process into several sessions. fine hair. 10 to 15 minutes ...Long Tail Bleach and Tint Brush. $1.39 Add to Bag Add Salon Care. Hair Color Mixing Bowl in Black. ... In 20 to 40 minutes ion Color Brilliance™ Brights deposits color on pre-bleached natural or color treated hair. ion Color Brilliance™ Brights can be applied to pre-lightened hair and natural or colored hair. ... Leave on for 48 hours ...Food dyes have long been suspected to negatively affect hyperactivity and attention. Here's what the science says. While artificial food colorings haven’t been shown to cause ADHD,...Natural Hair Color. Generally speaking: If blonde/light brown = fifteen-thirty five minute range should suffice but anything red/dark more time would be neccessary possibly close to forty five minutes - sixty minutes mark then better evaluate based upon response activity detected within 6hrs following treatment completion as some reactions ...The developer helps to open the hair's cuticle so that the dye can be absorbed. Be sure to follow the instructions on the packaging to get the correct ratio of dye to developer. Next, section off your hair and start applying the dye. Be sure to work in small sections so that the dye can be evenly distributed.ion Color Brilliance Intensive Shine Demi Permanent Creme Hair Color is a state-of-the-art, European Ionic Formula that is a luxurious, long-lasting, deposit-only hair color without ammonia. This hair color covers and blends gray hair up to 100% without lifting the hair's natural pigment.So I ended up deciding to do a review of the hair color that I used. The reason that I had originally decided to dye my hair pink was because it's something that I have wanted to do for a really long time but I've always been too scared to do it or wasn't allowed to because of school. ... The instructions on the box say to leave the dye ...Achieving your desired colored hair can sometimes be challenging. It requires a delicate balance where you have to ensure you don’t wash your hair too soon or too late. You should always read your instructions for the dye you’ve chosen. Most hair dye brands will instruct you to leave the dye for about 45 minutes before washing.You can treat it like MP and leave it in as long as you'd like. Manic Panic also suggests 20-30 minutes, but I've always left it in overnight. The longer, the better IMO. with fashion color its just a stain so go ahead! I'm planning on dying my unbleached hair with Ion Color Brilliance in Purple this weekend.Start at the outer corner and work the Q-tip to the inner corner. Try not to get any dye on your skin. Leave the dye on for the recommended amount of time, which is usually 5-15 minutes. To remove the dye, use another cotton swab and soak it in water. Run the swab against your brows.How long should you leave your hair dye on? Leave the hair dye in for 30-45 minutes. Follow the directions on the box. Ammonia and peroxide from hair dye penetrate deeper into the hair structure after 30 minutes, changing the color. Depending on hair length, dye type, and color, the procedure can last from 30 minutes to three hours.12. Tweak the results. After your hair is dry, if you're unhappy with the color, you can mute it by applying a deep conditioner to damp hair. Then cover your head with plastic wrap and a hot, damp ...

Ion Color Brilliance Bright White Toners help remove unwanted brassy tones or warm tones in hair. ... No matter what your hair needs, ion has the perfect solution for you. Ion Hotline: 1-800-859-3112. Our hotline is open from 8:00am to 5:00pm CST Monday – Friday. ... Leave on for 48 hours. Examine at 24 and 48 hours.

Ion Color Brilliance Brights Semi-Permanent Creme Hair Color (2.05 oz) - Radiant. $12.95. or Best Offer. $4.43 shipping.Dec 11, 2018 · Step 2: Mix in the hair color with the developer (the ratio is 1:1 for permanent hair color/2 fluid ounces and 60 ml of color.) Step 3: Apply the product to dry hair. Step 4: Leave the dye in your hair for 30 minutes (45 minutes for 50 percent or more gray hair.) Step 5: Rinse your hair thoroughly and apply shampoo and conditioner (we used ... Find helpful customer reviews and review ratings for ion Permanent Creme Hair Color 7VA Chrome, Vegan, Cruelty Free, PPD Free, 100% Gray Coverage, Long-Lasting, Fade-Resistant Color, 2.05 oz at Amazon.com. Read honest and unbiased product reviews from our users.47K views 6 years ago. Today I am doing an ion hair dye that I picked up at the local Sally's Beauty Supply. It may look burgundy but its not, it is called GARNET which is the …Apply the Ion permanent hair color to each section, starting at the roots and working your way down to the ends. Make sure to apply the color evenly, and be sure to avoid contact with your scalp. Once the color has been applied, leave it in for the amount of time specified in the instruction booklet.May 22, 2023 · In general, most hair dyes will need to be left in for at least 30 minutes. However, some dyes may need to be left in for longer, depending on the instructions. For example, some dyes may require that they be left in for 60 minutes or more. It is important to follow the instructions on the hair dye package. Leaving the dye in for too long can ... You can transfer it to a spray bottle for easier application. 2. Protein repair treatment: Neutral protein filler can also be used as a conditioner treatment simply by mixing 1 ounce of water with 2 ounces of neutral protein filler. Work the mixture into towel-dried hair, leave for around 20 minutes and rinse.How to Use Ion Permanent Hair Color: A Comprehensive Guide. In this guide, we will explore the benefits and step-by-step instructions on how to use Ion Permanent Hair Color effectively. Whether you are a beginner or an experienced user, this product offers a range of positive aspects that make it a popular choice for those seeking …The most common developer volumes are 10, 20, 30, and 40. But you’ll get the best results from using either 20 or 30 volume developer to lighten your hair. 10 volume = 3% peroxide. 20 volume = 6% peroxide. 30 volume = 9% peroxide.In general, never leave a hair dye in your hair for less than 30 minutes and more than 45 minutes due to the possible hair damage and undesired colors. This time will depend on lots of factors. Brand of the dye you are using. What effects you want to get after coloring.

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After a Certain point it won't absorb more water/dye. With traditional dye leaving it on too long can cause damage but with overtone you are only wasting time and not risking damage. That said 15-20 min should be sufficient. You can do longer if you like but you will experience diminishing returns after a while. 6.Ion permanent hair dye should be left in your hair for a minimum of 25 minutes and no longer than 45 minutes. The time you leave the dye in depends on the texture and porosity of your hair. For example, if you have thin, fine hair, it will likely take less time than if you have thick, coarse hair. In general, fine hair needs 25-30 minutes ...Ion hair color is safe to use every 10 days. A wider range of permanent color shades. Ion hair colors are often more natural-looking than other dyes. These colors present full coverage of sheds. Leaves hair silky and vibrant; Cons. Ion colors fade faster than any other dye. The dyes are also very thick. Special IngredientsNo, you should not leave permanent hair dye in overnight. The standard recommended time for leaving hair dye in is typically around 20 to 45 minutes, depending on the product and hair type. Leaving hair dye in overnight may lead to over-processing, hair damage, and an undesirable color outcome.For permanent hair dyes, the amount of time you should leave the dye on your roots will depend on the color you’re trying to achieve. If you’re looking to achieve a light color, you should leave the dye on your roots for about 30 minutes. For a medium color, leave the dye on your roots for about 30-45 minutes.Afterward, whether or not I shampooed, I use [[ASIN:B003XS16MC Ion Color Defense Leave-in Protector]] on towel-dried hair 5. After blow drying, if I didn't shampoo in the shower, I use dry shampoo to help keep the oiliness under controlUsing your tint brush, apply your colour to the section of your hair you wish to dye making sure to fully saturate and cover each strand intended. Once you are happy that you have fully saturated each section you wish to colour, comb the colour through until frothy. The frothiness indicates that the dye has been thoroughly absorbed.If you are using a semi-permanent Ion hair dye, it is generally recommended to leave it in for no more than 10 minutes. If you are using a permanent …Time Since Application. Finally, the time since you applied L’Oréal Hicolor can impact how long it lasts. The dye may be more vibrant and long-lasting immediately after application, but it may begin to fade as time passes. On average, L’Oréal Hicolor can last anywhere from 4-8 weeks, depending on the abovementioned factors.A solid hair mask can help return hydration that's been depleted during the dye process. After you've washed out the dye, grab a nourishing hair mask, like Living Proof Restore Repair Mask ($45; ulta.com ), and leave it on your locks for 10 minutes. Continue the treatment two to three times a week until you feel like your hair's moisture levels ...Start by parting your hair down the middle and sectioning your hair into four equal sections starting in the back, so you end up with two sections in front of the ears and two behind them. Gutkin says to begin applying dye at the roots first, "since the roots need the most color and processing time," and Rez advises really saturating them ... ….

The recommended processing time for unicorn hair dye depends on a few factors: For standard results, leave in for 30-45 minutes. For more intense, saturated color, process for 1-2 hours. Finer, thinner hair may need less time than thick, coarse hair. Pre-lightened hair will pick up more vivid color than darker bases.If you are using Ion semi-permanent hair dye then you should be leaving it in for approximately between 20 and 40 minutes. The amount of time depends on how dark you are trying to go and if your hair is previously colored. If you are trying to achieve a light color then 20 minutes should be sufficient but if … See moreSemi permanent dye is used to tone, add shine and depth to existing hair color, help blend grays, or touch up roots. Demi permanent color can be used in the same way, but it lasts longer. Semi permanent color lasts …Hair Color; Hair Care; Tools & Brushes; Nails; Cosmetics & Skincare; Salon Supplies; Brands; ... ion. Permanent Liquid Hair Color. $9.99 43 Color Options ... Color Defense Intense Leave In Therapy. $8.79 In-store Pickup 214. Add to Bag Save ion. Cool Blonde Purple Shampoo 10.5 oz. $9.89Semi permanent dye is used to tone, add shine and depth to existing hair color, help blend grays, or touch up roots. Demi permanent color can be used in the same way, but it lasts longer. Semi permanent color lasts through 8-10 shampoos before washing out completely.HOW LONG TO LEAVE ADORE HAIR DYE IN WITH HEAT. The amount of time you leave your hair dye in with heat will depend on the type of dye you are using and the temperature. Heat-Resistant Dyes: The time it takes for heat-resistant dyes to fade can be anywhere from 10 minutes to overnight.Step 4: Apply the dye. Using a clean, angled eyebrow brush or an applicator provided with the dye, carefully apply the dye to your eyebrows. Start from the inner corner and work your way towards the outer corner, following the natural shape of your eyebrows. Step 5: Wait for the recommended time.The first step is to clean the hair. "When applying semi-permanent hair color to damp hair, it is recommended to first shampoo the hair, so you are applying the color to a clean canvas," says Kusero. Once hair is cleaned, take the following steps to dye the hair: Wring out the hair: Prior to applying the dye, ensure the shampoo has been ...ion Color Brilliance™ Semi-Permanent Brights are hi-fashion hair color shades designed to give vivid, boldly intense results. In 20 to 40 minutes ion Color Brilliance™ Brights deposits color on pre-bleached natural or color treated hair. ion Color Brilliance™ Brights can be applied to pre-lightened hair and natural or colored hair.This is why leaving the dye in for the recommended time is essential to achieve vibrant and long-lasting results. The recommended time to leave Lunar Tides hair dye in typically ranges from 30 minutes to 2 hours, depending on the desired intensity of color. How long to leave in ion hair dye, 2. Once you've saturated your hair evenly with the masque, you can really leave it in as long as you'd like. Typically, I like to let a dye sit in for two hours before rinsing it out. 3. Rinse the dye out using lukewarm water, and once you start to see the water running clear, you're ready to dry!, After a Certain point it won't absorb more water/dye. With traditional dye leaving it on too long can cause damage but with overtone you are only wasting time and not risking damage. That said 15-20 min should be sufficient. You can do longer if you like but you will experience diminishing returns after a while. 6., 1. Rinse your initial hair dye with lukewarm water and don't shampoo for 2 days. Run water over your hair under a sink or faucet until the excess dye is gone and the rinsed water looks completely clear. [1] Once your hair is rinsed, leave it unwashed for 2 days—that gives your strands time to seal in the color., After the 2 weeks is up, you can safely re-dye your hair with demi-permanent dye. If you need to use a semi-permanent or permanent dye, it's a good idea to wait a little longer than 2 weeks since those dyes cause more damage to your hair. Aim for at least 4 weeks, or one month, to re-dye your hair in these cases., Need some backyard inspiration? Here's a budget-friendly project: dye drop cloths for patio curtains! Expert Advice On Improving Your Home Videos Latest View All Guides Latest View..., Since the dye is made of leaves, roots, etc., it takes longer to stain. You may have to leave it for at least one hour for the hair to dye. It can be left for up to 6 hours, depending on the shade you want. The color can very well last for 4 to 6 weeks., Instructions. Step 1: Use a nonmetallic bowl for mixing your ion hair color and ion developer. Mix in a 1-to-1 ratio, so if you require one 2-oz. Bottle of dye, mix it with 2 oz. of the developer. Remember to stir the mixture well before applying. Step 2: Apply the mixture onto your strands. If you are applying this as an entirely new color ..., How long should I leave 20 developer in my hair? You shouldn't leave 20 volume developer bleach in your hair for more than 30 minutes. However, 30 minutes is a long time. Ideally, you can remove the bleach before reaching the 30-minute maximum, but the actual timeframe will depend on your natural hair color, preferred shade, and hair type., That said, experts like Mona and myself leave most hair toners in for 5 to 20 minutes. The exact timing depends on the following: Your current hair color; Your hair's current health; Your natural hair type (fine vs. coarse) What your desired hair color is; What type of hair toner you plan to use (permanent, demi-permanent, or semi-permanent), Nov 3, 2022 · Ion color remover is a product that is used to remove color from hair. It is typically used to remove unwanted color from hair that has been dyed or bleached. Ion color remover can be used on red hair to remove unwanted color. The color red is very popular among girls and is used in a variety of hair styles. It is much more difficult to remove ... , Start at the outer corner and work the Q-tip to the inner corner. Try not to get any dye on your skin. Leave the dye on for the recommended amount of time, which is usually 5-15 minutes. To remove the dye, use another cotton swab and soak it in water. Run the swab against your brows., How long do I leave Ion’s permanent hair color on? It depends on the color you are using and the desired results. For most stains, leave it on for 30 minutes. You may need to leave it on for 45 minutes or even an hour for darker shades. Always follow the instructions on the box for the best results. What is the mixing ratio for ion hair color? , Spray it thoroughly and run a comb through your hair multiple times. Repeat with the remaining clipped sections of your hair. After you have finished applying the peroxide, put on a shower cap to keep the peroxide from dripping or touching your clothes. 6. Leave the hydrogen peroxide in your hair for about 30 minutes., Adore Semi Permanent Hair Color - Vegan and Cruelty-Free Hair Dye - 4 Fl Oz - 112 Indigo Blue (Pack of 1) ... ION Intensive Shine Permanent Liqui-Creme Hair Color Kit Fade Resistant Gray Coverage 2.5 Times More Shine Brilliant Long Lasting Color - Medium Brown 4N. dummy. ion Color Defense After-Color Sealer 33.8 oz. dummy. Lime Crime Genie Hair ..., 26 Mar 2018 ... MY RED HAIR ROUTINE: Products I use to dye and keep my hair red ... HOW I CUT MY HAIR AT HOME IN LONG ... Ion Permanent in Intense Red to dye my ..., , 2. Once you've saturated your hair evenly with the masque, you can really leave it in as long as you'd like. Typically, I like to let a dye sit in for two hours before rinsing it out. 3. Rinse the dye out using lukewarm water, and once you start to see the water running clear, you're ready to dry!, Long-lasting color: Ion Permanent Hair Color provides vibrant and durable results that can last for weeks. Say goodbye to frequent touch-ups! Wide color range: With a vast array of shades available, Ion Permanent Hair Color offers endless possibilities to express your unique style and personality. From natural tones to bold and vibrant hues ..., Follow up with the conditioner, leaving it on for 1-2 minutes before rinsing out. Once or twice a week, swap out the conditioner for the mask, leaving it on for 3-5 minutes before rinsing out. Step 4: Allow your hair to air dry. Put down the heat tools and give your color-treated hair a break post-L’Oréal Paris Féria dye job., The advanced formula of Ion Color Brilliance Brights ensures long-lasting and fade-resistant color. With proper care and maintenance, your hair color can remain vibrant for weeks, even after multiple washes. Easy Application Process: Ion Color Brilliance Brights comes in a convenient tube packaging, making it easy to dispense and apply., Standard processing time is 10-40 minutes at room temperature and 10-15 minutes with heat. After processing, rinse hair thoroughly until the water runs clear. Shampoo and style as desired. To help keep color looking fresh and vibrant use Ion (TM) Shampoo and Conditioner for color treated hair., Apr 26, 2016 · Learn how to color your hair with ion™ Color Brilliance™ Permanent Creme Hair Color!The ion™ Color Brilliance™ palette consists of 47 rich, luxurious shades.... , Find helpful customer reviews and review ratings for ion Permanent Creme Hair Color 7VA Chrome, Vegan, Cruelty Free, PPD Free, 100% Gray Coverage, Long-Lasting, Fade-Resistant Color, 2.05 oz at Amazon.com. Read honest and unbiased product reviews from our users., ion Color Brilliance Intensive Shine Demi Permanent Creme Hair Color is a state-of-the-art, European Ionic Formula that is a luxurious, long-lasting, deposit-only hair color without ammonia. This hair color covers and blends gray hair up to 100% without lifting the hair's natural pigment., The permanent pigment contains ammonia and it requires oxidizing to be able to sit on the locks permanently. How long it will stay on the locks will hang upon the hair type, and the quality of the product, but generally this kind of pigment lasts from four to six weeks before the first signs of fading will show off., Not to mention, ion Hair Color is gentle on hair, containing up to 38% less ammonia than the leading professional brands on the market. Unlock your hair’s true potential with ion’s cutting-edge, salon-quality color science, and vibrancy, like never before. Ion Hotline: 1-800-859-3112. Our hotline is open from 8:00am to 5:00pm CST Monday ... , ion Color Brilliance Intensive Shine Demi Permanent Creme Hair Color is a state-of-the-art, European Ionic Formula that is a luxurious, long-lasting, deposit-only hair color without ammonia. This hair color covers and blends gray hair up to 100% without lifting the hair's natural pigment., In general, the recommended time frame is at least 6 to 8 weeks for dye upkeep if you're using demi-permanent and permanent hair dyes. These dyes use harsh chemicals and can damage your hair if ..., It provides color that will slowly wash out after four to six weeks . It’s simple to learn how to use Ion semi-permanent hair color, even if this is your very first time coloring your hair. So follow these simple …, Ion hair color is safe to use every 10 days. A wider range of permanent color shades. Ion hair colors are often more natural-looking than other dyes. These colors present full coverage of sheds. Leaves hair silky and vibrant; Cons. Ion colors fade faster than any other dye. The dyes are also very thick. Special Ingredients, Both permanent and semi-permanent hair dyes are safe to use on a beard and effectively dye beard hair. Although temporary hair dye is safe for beard use, it has a tendency to run w..., Nov 14, 2022 · Apply the Ion permanent hair color to each section, starting at the roots and working your way down to the ends. Make sure to apply the color evenly, and be sure to avoid contact with your scalp. Once the color has been applied, leave it in for the amount of time specified in the instruction booklet. , Always start at your roots (unless you are lightening your hair for the first time), If you're covering gray roots, the color needs more processing time. But even if you don't have gray hair, the hair at your roots is new outgrowth, and takes a bit more time. It's a good idea to give your roots the most time to absorb color—at least a 10 ...