Durability varies by product type: temporary metallic sprays typically wash out after a day, while demi‑permanent or permanent metallic formulas last multiple shampoos. Some toner-style metallics in the data report durability up to about 30 washes.
Manufacturers often add shine- and fade-protection systems, such as metallic-shine boosters, bonding technologies that improve color adherence, and UV or blue-light protection ingredients. These features are intended to boost reflectivity and slow fading.
Kits commonly include the color cream or dye, a developer, disposable gloves, and an after-treatment or application instructions/guide.
Most product listings state metallic colors are formulated for "All Hair Types."