Why does grey hair turn yellow with keratin and nanoplasty
Importance of Heat Protection for Hair
Always remember to apply heat protectant using **Aloe Vera Nano Mist** and **HRC capillary** to prepare the hair.
## Heat Settings
- Use low heat, typically around **180°C** for grey hair, to effectively seal in the product.
## Why Does Yellowing Occur?
- Grey or porous hair is more sensitive to heat, which can oxidize residual pigments in the hair or products, leading to yellow or brassy tones.
- Heat can also react with minerals in the water or hair, particularly if the client has hard water buildup. This buildup can leave residues that turn yellow when exposed to heat.
### Lack of Proper Neutralization
- **Purple** neutralizes yellow.
- **Blue** neutralizes orange or brassy tones.
### Pre-existing Conditions
- Older color, mineral buildup, or previous chemical treatments can interact and exacerbate the issue.
## ✅ How to Prevent Yellowing:
- Utilize a clarifying treatment before nanoplasty to eliminate minerals and buildup.
- Lower the flat iron temperature for blonde or grey hair to prevent damage.
- Apply a professional anti-yellowing toner immediately after nanoplasty, ensuring the cuticle is closed and the hair is cooled.
💡 **Suggested Fix for the Client in Your Photo:**
- Use a **blue-violet toning mask** or shampoo to neutralize the yellow.
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