# Hair Toner After Keratin Treatment

**By BR Keratin** · 2017-12-13

## **Why Hair Turns Brassy After Keratin — and How to Fix It Without Damage**

_Expert tips for blondes and light tones using [Brasil Cacau Keratin](https://www.brkeratin.biz/collections/all)_

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### **First: Yes, Brassiness Happens — Here’s Why**

After a keratin treatment, it’s common for **blonde or light-colored hair** to take on a warmer or even yellow-orange tint. This is due to a temporary shift in pH and heat exposure during the treatment process, which may subtly **lift underlying warm pigments** — especially in pre-lightened or bleached hair.

If this happened to you after using the [**Brasil Cacau Reconstruction Kit**](https://www.brkeratin.biz/products/brasil-cacau-reconstruction-kit-big-3-products), don’t panic. The fix is simple, safe, and stylist-approved.

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### **Use a Purple Toning Shampoo — Carefully**

The most effective way to neutralize unwanted yellow or brassy undertones is to use a **professional purple shampoo**.

Why it works:  
– Purple pigments cancel out yellow tones (color theory 101)  
– Keeps cool blonde, silver, or ash tones fresh and balanced  
– Works without affecting the integrity of your keratin treatment

💡 **Tip:** Choose a sulfate-free, keratin-safe formula to preserve smoothness and shine.

[![](https://cdn.shopify.com/s/files/1/1223/9116/files/Brasil-Cacau-Komplet-300ml_480x480.png?v=1714073758)](https://www.brkeratin.biz/collections/all)

**_https://www.brkeratin.biz/products/brasil-cacau-reconstruction-kit-big-3-products_**

### **When Can You Start Using It?**

Unlike other treatments that require a long waiting period before toning, with [**Brasil Cacau**](https://www.brkeratin.biz/collections/all) you can begin toning **once the initial 48-hour post-treatment window has passed.**

Here’s the correct schedule:  
– **First 48 hours**: Don’t wash or wet your hair at all  
– **After 48 hours**: You may begin using purple shampoo  
– **Best practice**: Use it once a week for maintenance

There’s no need to overdo it — once a week is enough to keep your tone bright and neutralized.

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###   

[![](https://cdn.shopify.com/s/files/1/1223/9116/files/7_9813ef9b-6558-4a0e-82ea-47f07a253a44_480x480.jpg?v=1714074385)](https://www.brkeratin.biz/collections/all)

**_https://www.brkeratin.biz/products/brasil-cacau-reconstruction-kit-big-3-products_**

### **Can You Color Your Hair After Keratin?**

Yes — but timing and technique are everything.

If you plan to color your hair after a keratin treatment:  
– **Always consult your stylist first**  
– Wait at least **7–10 days** post-keratin for optimal results  
– Avoid high-lift or bleach-based color immediately after treatment

With professional guidance, you can safely enhance or refresh your color without compromising the **smoothing effects** of Brasil Cacau.

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### **Final Thoughts: Smooth, Shiny, and Cool-Toned — It’s Possible**

The [**Brasil Cacau Reconstruction Kit**](https://www.brkeratin.biz/collections/all) delivers long-lasting frizz control and silky results — but blonde and light-haired clients need a smart aftercare routine to maintain tone.

With the right **toning strategy**, you don’t have to choose between smoothness and color clarity.

And if you ever have doubts, ask your stylist to create a **custom aftercare plan** — because perfect hair should never come with guesswork.

**Tags:** brasil cacau, brazilian blowout, keratin treatment, smoothing treatment, thermal reconstruction

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> Source: [BR KERATIN](https://www.brkeratin.biz/blogs/news/hair-toner-after-keratin-treatment)