How long does the colour last, and what makes it fade faster or slower? — TINT SEMI-PERMANENT EFFECT COLOR Bad Girl NEON GREEN 150ML

As a semi-permanent direct dye without peroxide, the pigment gradually rinses out with each shampoo. On very light, porous, or bleached hair, the colour can stay vivid for 8–15 washes before noticeably fading to a pastel green. On less porous or darker bases, the overlay may fade within 3–6 washes. Factors that accelerate fading: frequent washing, hot water, clarifying or deep-cleansing shampoos, swimming in chlorinated or salt water, and heat styling without protection. To extend wear: wash less often, use cool water, choose a sulphate-free colour-safe shampoo, apply a leave-in conditioner or oil (linseed oil in the formula already helps), and limit heat exposure. Porous ends often hold pigment longer than roots, so expect uneven fading over time — this is normal for direct dyes.