| Brass Issue | Undertone Showing | Use This | Why It Works | Product Picks |
|---|---|---|---|---|
| Yellow (banana, pale gold) | Warm yellow | Violet | Violet cancels yellow on the color wheel | Kostume Kolor 012 Ice Blonde (semi-permanent) → https://kostumeusa.store/product/kostume-kolor-012-ice-blonde-semi-permanent-hair-color/ • Color Maintenance masks (violet options listed) → https://kostumeusa.store/color-maintenance-hair-care/ Kostume USA+1 |
| Orange (copper, dark gold) | Warm orange | Blue | Blue cancels orange | Color Maintenance masks (blue-leaning blondes) → https://kostumeusa.store/color-maintenance-hair-care/ • Permanent Blonde Ash/Nacre options → https://kostumeusa.store/product-category/permanent-hair-color/page/2/ Kostume USA+1 |
| Red/Orange (auburn brass after lightening dark hair) | Red-orange | Blue-green blend | Cool down both red & orange | Explore Kostume Kolor shades/korrectors → https://kostumeusa.store/product-category/permanent-hair-color/?products-per-page=all Kostume USA |
How to Apply (Fast)
- Clarify lightly if hair feels product-coated. → Shampoos: https://kostumeusa.store/product/best-repair-shampoo-restruturador/
- Neutralize with the right tone (mask or semi-permanent).
- Seal & protect with leave-in and a light serum to keep cuticles flat.
Build your anti-brass kit → Shampoo + Right Neutralizer + Leave-In + Serum.