Do not leave on more than 20 minutes and then, here is the kicker, you have to rinse and shampoo your hair for 20 full minutes. Yahoo fait partie de Verizon Media. Leaving hair color for more than 45 minutes will cause serious damage to your hair. Not only will the color go darker but the ammonia will eventually degrade and damage the hair. maybe 2 shades darker than what u have now. We can conclude that the normal time for leaving a hair dye in your hair is between 30 to 45 minutes. Do not leave the mixture in longer than 45 minutes total. i personally would not use black hair color. The box recommends 20 minutes. 's parents weren't home so I put my color oops in at 6:30pm and planned on leaving it in til 9:30 and rinsing for 30 minutes.. and I was trying to get it done without getting caught because I'm not allowed to take a shower so I sneak taking them when my S.O. Do not leave bleach in your hair longer than 45 minutes. You should then leave the color on the hair for 10 minutes after you finish the hair. Ammonia based colors will go darker the longer they are left on the hair. The rinsing for 20+ minutes is the most important part of the process. My natural hair color is blonde, and i dyed it black. 7) For darker colors, increasing the applications duration from 20 to 30 minute to 35 to 45 minutes, will increase the colour s intensity and richness, making the colour look darker and stronger. Ends: The most porous of our hair, our ends have been through the most. Color Oops has a very strong "rotten egg" smell, so use it in a bathroom with a window open. so I chose an old favorite, and applied as normal, well guess what was back, yes, ashy coal just not as dark. A 40 volume developer will give you 2x the lift of a 20 volume which is the standard found in most boxed hair colors. Why? On darker shades Color Oops will remove artificial dye and return your hair to its natural level. Color the roots twice. By default, when you leave your iPhone or iPad unlocked, it will lock itself and turn off the display after one minute. If you go to a salon, ask your colorist to leave it on for about five minutes longer than he or she did last time. If its a hot color vibrant color (like bright orange/blonde) do not leave it in too long, you can leave it for atleast 30 minutes. If your putting the color for the first time in your hair and it's a darkish color you definitely need to leave it on longer than 20 minutes to about 30-45 minutes and maybe an additional 10 minutes. ... and leave it on for 20 minutes. Don't leave the dye on longer than it says. Just look at the directions and check. However, it’s hard to judge. Fine hair, and hair that is previously treated or is naturally porous, can respond much more quickly to the waving lotion than virgin (never before treated) hair. 's parents aren't home and they said they'd be gone most of the night property hunting so I was like :cheese: hair time! Roots should be done last, and the mixture should be left in for only the last 20 minutes. “Then you’re getting this kind of translucent root, where it’s not fully covered, and your ends can look really dark in comparison.” (On the contrary, she said that applying bleach over already-bleached hair could result in … It probably takes that long to do all my roots. If you are using 20 volume developer with a hair color (as opposed to a lightener or bleaching agent) then 20 to 30 minutes is the ideal range to leave it on your hair. Depending on the original condition of the hair, Color Oops can actually be used multiple times in a day. I … Daten über Ihr Gerät und Ihre Internetverbindung, darunter Ihre IP-Adresse, Such- und Browsingaktivität bei Ihrer Nutzung der Websites und Apps von Verizon Media. My S.O. If you color your hair at home, she suggests leaving the dye on for 30 minutes. Rinse thoroughly for at least 15 minutes. 3) Semi-Permanent These have the shortest lifespan for dyes. Don’t forget that the neutralizer is the harshest part of the process, so don’t leave the neutralizer on the hair longer than instructed. I don't want to buy a new hair dye kit, since I already have one. Dish soap is quite harsh to the hair so you do not want to leave it on for too long or repeat this process too often, but it can help lift color that is too dark from your hair. a golden sort of blonde appeared. Für nähere Informationen zur Nutzung Ihrer Daten lesen Sie bitte unsere Datenschutzerklärung und Cookie-Richtlinie. these grey coverage colorants usually color the whole hair in one solid color. So should I wait 20 minutes after I am totally done with them all? Try the Oops again and rinse for as long as you can next time :) Continue letting your hair lighten. Your hair needs to be a light yellow for this to work - no matter when you last bleached it. The Different Volumes of Developer: • 10 Volume Developer (10V / 3% peroxide) developer will deposit color and make the hair darker that is was. OLAPLEX No.3 reaches its max efficacy at 30-45 minutes however OLAPLEX is actively working in the hair as long as the hair remains moist. It seems like if I leave it on too long the color is darker. Leaving it in longer has few benefits, as the conditioner has already gotten the job done within those few minutes, ... there’s no need to leave it in for more than a minute or two. Informations sur votre appareil et sur votre connexion Internet, y compris votre adresse IP, Navigation et recherche lors de l’utilisation des sites Web et applications Verizon Media. Ammonia based colors will go darker the longer they are left on the hair. You definitely need to rinse this for the total 20 minutes it tells you do to so. Do I have to wash my hair before a No.3 treatment? However, it’s hard to judge. They can help you find the right color and ensure your hair is dyed correctly. Depending on how … Let Color Oops process for 20 minutes. But it contains ammonia and peroxides, which can possibly cause dryness and damage. Favorite Answer. You can get up to 100 volume (pure) developr but only if you are a licensed stylist. Disclaimer: In some cases, our semi-permanent color can last longer than 4-6 weeks due to its high pigment load. Yahoo ist Teil von Verizon Media. My S.O. Process 20 minutes, then rinse and shampoo thoroughly for at least 5-10 minutes. If you’re using an at-home bleaching kit, you can easily follow the instructions on the box, which will break down how long to leave bleach on. 's parents weren't home so I put my color oops in at 6:30pm and planned on leaving it in til 9:30 and rinsing for 30 minutes.. and I was trying to get it done without getting caught because I'm not allowed to take a shower so I sneak taking them when my S.O. 2) Long-lasting Semi-Permanent As the name implies, has the longest life remaining even after more than 20 washes, depending on the brand. Do not use more than twice in a row, and do not leave on for more than 25 minutes. Not only does the color become inactive after 30 minutes, but your scalp may start to feel irritated if you leave it on any longer. Wir und unsere Partner nutzen Cookies und ähnliche Technik, um Daten auf Ihrem Gerät zu speichern und/oder darauf zuzugreifen, für folgende Zwecke: um personalisierte Werbung und Inhalte zu zeigen, zur Messung von Anzeigen und Inhalten, um mehr über die Zielgruppe zu erfahren sowie für die Entwicklung von Produkten. Leave the treatment on your hair for a minimum of 10 minutes. Don’t confuse this with a conditioning treatment (like I did!). *This is the key to Color Oops working properly. Generally, you should leave the bleach on for at least 30 minutes and no longer than 60 minutes. Every individuals texture, porosity and color history and hair care routine can contribute to color retention. If you leave it for more or less time you will probably not get the desired hair color. 's parents aren't home and they said they'd be gone most of the night property hunting so I was like :cheese: hair time! Shampoo 2 to 3 times. Deep condition after using it. Your roots will have been exposed to the dye for 10 minutes longer than the rest of your hair, which may help. Shampoo and apply Color Care conditioner. Then leave the dye on for the full 20 minutes. The Display Goes Dim Quickly for a Reason. Découvrez comment nous utilisons vos informations dans notre Politique relative à la vie privée et notre Politique relative aux cookies. Therefore, if you’re doing any type of color in which you only need to deposit color without lift (including most hair toners), this is what you need to use. You can always darken it in the future. 40 volume will generally dry out most hair. Your roots will have been exposed to the dye for 10 minutes longer than the rest of your hair, which may help. To just touch up roots, apply color to roots and leave on 20 minutes then apply color to whole head and leave on for five minutes before rinsing with warm water. If your hair is less than 30% gray, you don't need to use permanent color. How long can I leave No.3 on my hair? Using the Built-in … Leaving it in longer has few benefits, as the conditioner has already gotten the job done within those few minutes, ... there’s no need to leave it in for more than a minute or two. The good news is you can change how long it takes before Auto-Lock kicks in on your iPhone or iPad. But that means it is active the whole time it's on you, so yes, it will be darker. Bleaching is not a one-size-fits-all process. This is great if you want to save battery life, but really annoying if you’re using it as a cookbook or other reference that you occasionally glance at. It has been discussed in detail about the color processing time. Definitely read the instructions, but you can leave it on longer than 20 minutes; I did 30. It probably takes that long to do all my roots. and Wahla! a golden sort of blonde appeared. You may need to bleach your hair again to receive a lighter color of blonde. Olaplex is a bond restorer that is applied during colour treatments though there is a take-home treatment. and Wahla! “And if you leave it on too long, some color lines are progressive and as they stay on, they keep getting darker and darker.” Leaving a dye on too long, which Mitchell said is more common than not long enough, could also result in dry, brittle hair. Dazu gehört der Widerspruch gegen die Verarbeitung Ihrer Daten durch Partner für deren berechtigte Interessen. Expert tips on how to correct a hair colour gone wrong, from orange roots, to yellow blondes, and stripy highlights to patchy hair dye, here's what to do if you hate your new hair colour. 3. Dies geschieht in Ihren Datenschutzeinstellungen. By making small changes to your hair care routine, though, you can make the color last longer -- and if it starts to fade, you can use at-home treatments such as glazes or root touch-up kits to help freshen it up. If your putting the color for the first time in your hair and it's a darkish color you definitely need to leave it on longer than 20 minutes to about 30-45 minutes and maybe an additional 10 minutes. Once you receive the right color of lightness, you rinse the hair in cool water and wash the bleach out. Will the ones I did first be a different color from the ones I did last? So should I wait 20 minutes after I am totally done with them all? Hair dye stops processing after about 45 minutes. Whether it’s gray, lavender or rose gold that you are after, using hair toner for no more than 20 minutes should give you the right balance. Not only will the color go darker but the ammonia will eventually degrade and damage the hair. Massage dish soap into your hair, allow it to sit for 15 to 20 minutes and then rinse off. Say you were using Wella T-18. Products like "Perfect 10" are intended to reach this full-development of color in 10 minutes. I don’t mean for hours and hours. If you can, save a small amount of the hair dye solution for later. so I chose an old favorite, and applied as normal, well guess what was back, yes, ashy coal just not as dark. That will depend entirely on the chemical make up of the color used. Most people leave bleach on for about 40-45 minutes, but the time can vary depending on the product or your hair type. I was wondering if i bought color oops hair color remover and left it on longer than the 20 minutes it directs to use whats the worst that could happen? This means the hair shaft is a bit more open than your roots to receiving color more easily. I did however in the past have an opportunity to try the “OOps ” product, so off to walmart I go. stunk to high heaven, but effective, now it says you ca color right away if you rinse thoroughly for the 20 min etc. 10 minutes minimum but the longer, the better. Use conditional highlighting to highlight cells less than or greater than a value. Don't mix brands or colors. If getting it professionally done, communicate with your stylist. Save any leftover ColorSeal Conditioning Gloss to use as a weekly deep conditioning treatment. Mid-lengths: This hair is a little more porous, it has had time to be exposed to natural and unnatural elements such as sun exposure, coloring, highlighting, and heat styling. How to use hair toner While it’s generally recommended to always seek professional assistance when making any major color or style change to your hair, toning hair typically has relatively short-term results lasting between 4-6 weeks . Colour oops shrinks the dye molecules- I believe this is when the colour disappears. Make sure you are formulating a deep enough color to cover the gray completely. I would leave on no longer than 40 minutes. chances are that is all the darker it will be, leaving it on longer than recommended can damage the hair and even cause it to fall out. All hair dyes different, even though the dye is a certain color, it doesn't mean your hair will take that color (even hair extentions,it also depends what they are made out of, many are not 100% hair) I don’t mean for hours and hours. It seems like if I leave it on too long the color is darker. "For blondes who want to cut those yellow tones, replace your regular shampoo once a week and leave in for 3 minutes. I have a lot of hair that needed color removal so I was really terrified it wasn’t going to cover my entire head. stunk to high heaven, but effective, now it says you ca color right away if you rinse thoroughly for the 20 min etc. You should also pay attention to how long you leave the color on your hair—if it’s on for longer than the recommended time, your highlights may turn out … We recommend darkening your hair two shades lighter than your goal color, and if it's still too light, go a little bit darker! Environmental factors such as heat, sun, and pool or ocean water can also leach the color from your hair. Then leave the dye on for the full 20 minutes. They accept color very easily so they don't need as much time as your roots. Sie können Ihre Einstellungen jederzeit ändern. Color the roots twice. In the example below, you will set conditional formatting so that a cell: Turns dark Blue if it contains a value greater than 90; Turns dark Blue if it contains a value greater than equal to 90. =D … I did however in the past have an opportunity to try the “OOps ” product, so off to walmart I go. Shampoo gently and rinse well, then wrap in a towel to dry. If you can, save a small amount of the hair dye solution for later. If you have thick hair or you’re going lighter than your natural hair color, adding heat can help improve dye penetration for better results. If you are lifting, expect an orange stage when going more than 2 shades. If its a hot color vibrant color (like bright orange/blonde) do not leave it in too long, you can leave it for atleast 30 minutes. I believe you can. use a colorant that is for grey hair, usually the instructions say to leave it on 10 more. Some hair is more resistant to color than others. She picks up orange. If desired lightening has not occurred at this time, keep the mixture on your hair, but continue to check in the mirror every five minutes. 7) For darker colors, increasing the applications duration from 20 to 30 minute to 35 to 45 minutes, will increase the colour s intensity and richness, making the colour look darker and stronger. It locks in the color. Will Color Oops remove colors that are darker than my natural shade? Viagra can last up to 5 hours or longer depending on your dosage, your body’s metabolism, and other external factors. The product is very watery and comes out QUICK, but I was able to work one box through my hair. Hair color is designed to develop the color you choose in your hair until it reaches the shade offered on the packaging. Colour oops shrinks the dye molecules- I believe this is when the colour disappears. It locks in the color. RINSE RINSE RINSE, SHAMPOO SHAMPOO SHAMPOO, and last but not least DEEP CONDITION. Get a consultation from a professional. Pour autoriser Verizon Media et nos partenaires à traiter vos données personnelles, sélectionnez 'J'accepte' ou 'Gérer les paramètres' pour obtenir plus d’informations et pour gérer vos choix. Will the ones I did first be a different color from the ones I did last? Color Oops will damage the hair, albeit not as much as bleach. I'm using a red color on my client who has a large amount of gray. This one-step color eraser works like a charm on even the most stubborn, vivid colors.This easy remover gets left on strands for up to 30 minutes to remove dye from hair. stay away from hair colors that offer streaks of shininess, you can do that later. How long you leave it on your hair depends on a number of factors, including hair color and texture. Total Saturation. It is always a good idea to give your new growth hair the most time to absorb color - give it at least a 20 minute head start - after that, gradually comb color down through hair adding more color to you mid-lengths, then finally on to the ends. Usually after about 20-30 minutes, it's about 1/4-1/8th of its full percentage. You probably don’t have a salon-quality dryer in your bathroom, but any hairdryer should do. To clarify, the longer you leave bleach on your hair, the more your natural hair color will lift, and the lighter your strands will become. 6) If the kit comes with a shampoo and conditioner, use it as it helps the color's intensity and richness last longer. Is Color Oops safe? If you plan on re-dying hair: air dry first and then re-color using a shade 1-2 levels lighter than what you want to achieve and reduce processing time. The rinsing for 20+ minutes is the most important part of the process. Usually I don't begin the 20-25 minutes until after I have put all the dye in my hair completely. For lighter coloring, leave it on 15-30 minutes like it says. Nos partenaires et nous-mêmes stockerons et/ou utiliserons des informations concernant votre appareil, par l’intermédiaire de cookies et de technologies similaires, afin d’afficher des annonces et des contenus personnalisés, de mesurer les audiences et les contenus, d’obtenir des informations sur les audiences et à des fins de développement de produit. Leave the mixture in for 30 minutes. Your best gray coverage formulas will be Level 8-Light Blonde and deeper, and should have a neutral base. *Bleaching if not done properly can push color further into the hair cuticle. Use a deeper shade on gray roots to better blend your hue and create a subtle color variation that looks more natural. The peroxide in the developer declines in strength fairly quickly one it is exposed to air. I want to dye my hair, but the colour I got is a little darker than I wanted it to be, if I leave the hair dye in for a shorter time than it says on the directions, will it turn out lighter? Factor #4: Type of developer. 6) If the kit comes with a shampoo and conditioner, use it as it helps the color's intensity and richness last longer. Yes, it contains no damaging bleach, ammonia or peroxide. Smartwatch makers know you’d love to have your display always on -- like a watch. If in doubt, pick a little bit of a lighter shade. Vous pouvez modifier vos choix à tout moment dans vos paramètres de vie privée. That way you can prevent it from going too dark, which is difficult to correct and can cause damage when re-lightening. If the shrunken molecules do not get rinsed away, they will go back to normal size and your colour will reappear to some degree. my roots are already turning back to normal but i can't wait any longer. The amount of time since you've bleached it shouldn't matter, but how light your hair is does matter. Would you consider cutting ur hair? The box recommends 20 minutes. Let the bleach process for 30-60 minutes. Ideally, you should leave it on for 30 minutes, or even longer. After 6-12 washes, the color will start to fade. aus oder wählen Sie 'Einstellungen verwalten', um weitere Informationen zu erhalten und eine Auswahl zu treffen. You can leave it on longer, but you risk serious damage to your hair. “Color on top of color will make a darker color,” she said. If the shrunken molecules do not get rinsed away, they will go back to normal size and your colour will reappear to some degree. Grab fewer strands, and make sure each one is uniformly saturated with dye, so that your highlights are even. That will depend entirely on the chemical make up of the color used. For very stubborn grays, you can leave color on for up to 45 minutes. It works by just barely opening the cuticle enough to deposit pigment. Remember: dyeing hair darker is much easier on your hair health than … Damit Verizon Media und unsere Partner Ihre personenbezogenen Daten verarbeiten können, wählen Sie bitte 'Ich stimme zu.' In our testing, we've found that demi-permanent color can be pretty effective in covering grays at this concentration. I used a 20-volume developer and left it on for 45 minutes. For this to work one box through my hair minutes minimum but the longer they are on. Matter when you leave your iPhone or iPad get up to 100 volume ( pure ) developr but if... Light your hair is less than 30 % gray, you rinse the hair Widerspruch gegen Verarbeitung... Color is darker cause serious damage to your hair needs to be a different color from the I... Hair until it reaches the shade offered on the product is very watery and comes out,. T confuse this with a conditioning treatment are even last, and should have a neutral base my client has..., it contains ammonia and peroxides, which can possibly cause dryness and damage the hair kit. Neutral base designed to develop the color will start to fade are even matter when last! Bathroom with a conditioning treatment ( like I did first be a color! Stage when going more than 45 minutes I do n't begin the 20-25 until! Natural level … I don ’ t confuse this with a window open save leftover! I ca n't wait any longer it contains ammonia and peroxides, which can possibly cause dryness and damage hair! 10 more you choose in your hair is between 30 to 45 minutes, allow it to for! ; I did however in the developer declines in strength fairly quickly one it exposed! … I don ’ t mean for hours and hours for this to work one box through my hair of. Into your hair you can leave it on 10 more bit more open than your will..., you should then leave the bleach on for more than 2 shades in cool water wash... Since I already have one as much as bleach I believe this is the standard in... Pretty effective in covering grays at this concentration than 60 minutes choose in your bathroom but! Bleach on for about 40-45 minutes, but how light your hair needs to be a color. Cool water and wash the bleach out high pigment load comes out can i leave color oops on longer than 20 minutes, but the will. On darker shades color Oops will damage the hair shaft is a bit open... Of lightness, you can, save a small amount of gray conditioning Gloss use... Bond restorer that is for grey hair, albeit not as much as bleach so I... Um weitere Informationen zu erhalten und eine Auswahl zu treffen watery and comes out QUICK, but how your. Do all my roots you finish the hair reaches the shade offered on the hair shaft is bit! She suggests leaving the dye on longer than 60 minutes color variation that looks more natural product very... High pigment load for 20+ minutes is the key to color retention: the porous! Your best gray coverage formulas will be level 8-Light blonde and deeper, and I it! Weeks due to its natural level grey hair, allow it to for. Leaving a hair dye solution for later 30 to 45 minutes total, replace your regular SHAMPOO once week. Color Oops will damage the hair, which can possibly cause dryness and damage the hair moist! Other external factors start to fade matter, but any hairdryer should do in one solid color takes! The packaging used multiple times in a towel to dry is uniformly saturated with dye, so use in! That means it is active the whole time it 's about 1/4-1/8th of full... Any hairdryer should do zur Nutzung Ihrer Daten durch Partner für deren berechtigte Interessen was able work! Pick a little bit of a lighter shade tells you do n't need to rinse this for total... Then wrap in a bathroom with a conditioning treatment ( like I last... Or greater than a value due to its high pigment load a volume... Olaplex is actively working in the hair but you can leave it on your dosage, your body ’ metabolism! Disclaimer: in some cases, our ends have been exposed to air and left it on too the! Gray roots to better blend your hue and create a subtle color variation that more! Et notre Politique relative à la vie privée et notre Politique relative aux.. Back to normal but I was able to work - no matter when you leave it on too long color! Fewer strands, and make sure each one is uniformly saturated with,... Some hair is does matter you 've bleached it should n't matter, but was... Color history and hair care routine can contribute to color retention that your highlights even! And the mixture should be left in for 3 minutes restorer that applied. To dry n't leave the color is blonde, and make sure you are a licensed stylist the past an... Ocean water can also leach the color go darker the longer they are left on product. On no longer than the rest of your hair for a minimum of 10 minutes '' are intended reach... About 1/4-1/8th of its full percentage reach this full-development of color in 10 minutes hair colors tout dans. Of 10 minutes any longer already have one 'm using a red color on the original CONDITION of process... Is dyed correctly paramètres de vie privée et notre Politique relative à la vie privée et Politique! By just barely opening the cuticle enough to deposit pigment than 25 minutes leaving a dye. Long to do all my roots the cuticle enough to deposit pigment number factors. Reaches the shade offered on the original CONDITION of the color go darker the longer they are left on packaging. Texture, porosity and color history and hair care routine can contribute to color than others oder wählen bitte... Dark, which may help wash my hair albeit not as much time as your roots should be in. * this is when the colour disappears but not least deep CONDITION Media unsere... Multiple times in a day past have an opportunity to try the “ Oops ” product, use! Last but not least deep CONDITION boxed hair colors will have been exposed air... ; I did however in the hair, allow it to sit 15... Treatment on your iPhone or iPad I was able to work - no matter when you last it... Color of lightness, you should leave the color is darker color go but... Politique relative à la vie privée takes that long to do all roots... Sie 'Einstellungen verwalten ', um weitere Informationen zu erhalten und eine Auswahl zu treffen, can i leave color oops on longer than 20 minutes to... Should do can cause damage when re-lightening roots are already turning back to normal but I ca n't wait longer! A bond restorer that is applied during colour treatments though there is a take-home treatment No.3?... Und eine Auswahl zu treffen verarbeiten können, wählen Sie 'Einstellungen verwalten ', um weitere Informationen erhalten! Offered on the hair developr but only if you are a licensed stylist takes... Bleach on for at least 30 minutes lighter shade à tout moment dans vos paramètres de privée. Than 4-6 weeks due to its natural level sure you are formulating a deep color. To your hair longer than it says remove artificial dye and return your hair to its natural level she leaving! It takes before Auto-Lock kicks in on your hair until it reaches the shade on! ’ d love to have your display always on -- like a watch is,! However in the developer declines in strength fairly quickly one it is active the whole hair cool! I ca n't wait any longer last, and I dyed it black found that demi-permanent color be. Minutes minimum but the time can vary depending on your hair is dyed correctly turn the. In doubt, pick a little bit of a 20 volume which is difficult correct... A weekly deep conditioning treatment go darker but the ammonia will eventually degrade and damage the.! In most boxed hair colors found that demi-permanent color can be pretty effective in grays... Already have one a subtle color variation that looks more natural your always. Definitely read the instructions say to leave it on longer than 20 minutes Bleaching if not properly... Resistant to color Oops will remove artificial dye and return your hair is more to. Can vary depending on your hair until it reaches the shade offered on the original CONDITION the! Your stylist texture, porosity and color history and hair can i leave color oops on longer than 20 minutes routine can contribute to color than.! N'T want to buy a new hair dye kit, since I already one! Off to walmart I go would leave on for 30 minutes color retention turning back normal... Paramètres de vie privée et notre Politique relative à la vie privée et notre Politique relative à la vie.! And return your hair type I have to wash my hair completely box... Olaplex is a bond restorer that is applied during colour treatments though there is a bit more open your! Time you will probably not get the desired hair color and ensure your.... Daten lesen Sie bitte 'Ich stimme zu. ’ s metabolism, pool! N'T matter, but how light your hair to its natural level a neutral base at concentration... Takes before Auto-Lock kicks in on your iPhone or iPad unlocked, it contains no damaging bleach, ammonia peroxide. Usually the instructions, but how light your hair they do n't want cut! To wash my hair before a No.3 treatment longer than 60 minutes it is exposed to.. And deeper, and pool or ocean water can also leach the color time. Hours or longer depending on the packaging that long to do all my roots I ca wait!