WELLA DEVELOPER 20VOL 1000ML This professional-strength 1000ml developer at 20 volume is engineered for reliable color lifting and consistent results in hair coloring applications. The precisely formulated oxidizing agent works synergistically with color products to achieve optimal pigment penetration and vibrant, long-lasting color payoff. Ideal for moderate lifting requirements, it balances effectiveness with hair integrity, minimizing damage while maximizing color vibrancy and dimensional results. The stable formula ensures predictable processing times and uniform color development from roots to ends. Trusted by salon professionals and suitable for various hair types, this developer delivers professional-grade performance for superior coloring outcomes.