Deep conditioning and shampooing are different steps. A general 72-hour no-shampoo rule does not, by itself, answer when to condition; follow the specific color and conditioning products’ directions.
Why? You risk fading the color, as shampooing too soon can wash dye away at the surface, and you’ll lose your desired look.
Not only can you waste money, but shampooing too soon can also speed color fading. So, what should you actually wait for, and where does deep conditioning fit in?
Choose a conditioning treatment compatible with the exact color system and follow its directions. Whether to deep condition immediately is a different question from the shampoo schedule.
When to Shampoo and Deep Condition After Colouring
After a coloring process, your hair may seem more frizzy, dry, and brittle, even if it was healthy and vibrant before coloring. Using conditioner right after you rinse out the dye helps smooth the cuticle and adds slip, which can reduce tangling and breakage.
So, is this a bad thing? No. Conditioner does not “push out” dye. What fades color fastest is shampoo, hot water, and frequent washing.
Hair dye is usually an alkaline process, which can raise the cuticle during coloring. A conditioner is often more acidic, which helps bring hair closer to its normal pH and smooth the cuticle again. That is why many dye kits include a conditioner to use right after rinsing.
My Advice
- Always follow the dye kit or your stylist’s instructions, including the patch test. Stop and rinse right away if you feel burning, intense itching, or swelling.
- Get urgent medical help if you have trouble breathing, facial swelling, or widespread hives. A patch test can help detect a reaction before full application, though the FDA notes a reaction is still possible after a negative test, so test before every use.
- For ingredient and safety basics, see the FDA: hair dyes.
Is It Okay To Deep Condition Before I Dye My Hair?
Dyeing your hair puts real stress on it, even when everything goes right. If your hair is dry or already damaged, deep conditioning a few days before coloring can help it feel softer.
You’ll want to give the deep conditioning treatment enough time to support moisture and help your hair feel smoother.
However, avoid heavy product buildup right before coloring. Some very oily or silicone-rich masks can reduce color penetration and lead to uneven results. A good rule is to deep condition 3 to 4 days before dyeing, then keep hair clean and product-light on dye day.
Does Your Hair Even Need Deep Conditioning?
Most color-treated hair benefits from deep conditioning about once a week. You likely need deep conditioning if:
- Your hair feels rough or tangles easily, especially when wet.
- The ends look dry or split, or you see breakage when brushing.
- It looks dull even after regular conditioner.
Things To Consider After Dyeing Your Hair
There’s nothing worse than spending a bunch of money on getting the ‘perfect’ look of your hair, and then a couple of weeks later, it looks dull, damaged, frayed, and lifeless.
So, how do you keep your hair looking its best after dyeing it?
Wait To Wash Your Hair
After you dye your hair, the formula raises the cuticle so color can enter the hair fiber. After you rinse, conditioning helps smooth the cuticle again.
If you shampoo your hair the same day or the next day, you can remove some dye at the surface and speed up fading within the first week.
Follow the exact colour system’s shampoo and conditioning directions. If a glaze or gloss follows the colour, check that system’s compatibility directions before conditioning between the services; a general 48- to 72-hour wait does not answer the conditioning question.
Rinse With Cold Water
When you shampoo, follow the colour system’s aftercare instructions, including any directions for water temperature.
Cold water or cool water at the end of your rinse can help keep the cuticle smoother, which may slow fading over time.
Avoid Swimming Pools With Chlorine
Pool chlorine and other oxidizers can fade hair color quickly. Some pools also contain copper, which can shift light hair toward a green tone.
Chlorine can strip your freshly dyed hair and may also change its color. The best defense is a bathing cap, and they happen to be back in vogue, looking rather chic.
What Do I Use When It’s Time to Deep Condition My Hair?
When you go to deep condition your hair, look for conditioners made for color-treated hair. Ingredients like argan oil, almond oil, coconut oil, rosehip oil, or aloe vera can help with softness and shine.
Use the conditioner supplied or recommended for the exact dye system as directed to lock in moisture and improve how the hair feels. Deep conditioning is a separate step from shampooing; choose a compatible treatment and follow its directions rather than a universal 48- to 72-hour schedule.
