TINT SEMI-PERMANENT EFFECT COLOR Bad Girl BLUE 150ML

Because this is a direct dye without peroxide or ammonia, it does not lift your natural pigment. On hair that has been pre-lightened to a pale yellow (level 9–10), the pigment deposits intensely and gives a vivid, electric blue. On light to medium blonde (level 7–8) you will see a noticeable but deeper, cooler blue veil — think midnight or denim rather than neon. On dark blonde or light brown the effect is a subtle blue tint visible mainly in bright light; on medium to dark brown or black hair the change is barely perceptible. Previous colour history matters too: porous, previously coloured ends grab more pigment than virgin roots, so the result can be uneven along the length. If you are unsure, test on a hidden strand first.

Semi-permanent direct dyes sit on and around the cuticle rather than inside the cortex, so every wash removes some pigment. On highly porous, freshly bleached hair the initial saturation is strongest but it also rinses out faster — often noticeable fading after 3–5 washes. On less porous or only lightly lightened hair the colour may remain visible for 10–12 washes. Sulphate shampoos, hot water, and frequent washing accelerate fade; cool water, sulphate-free cleansers, and washing less often extend it. As the blue fades on a yellow-blonde base it can pass through teal or greenish stages before returning to the underlying blonde. There is no sharp root line because the product does not alter new growth.

The formula contains concentrated direct blue pigments that are designed to adhere to keratin. During application they will stain anything they touch: skin, nails, countertops, tile grout, shower curtains, and towels. Before starting, put on the gloves provided (or nitrile gloves), drape an old towel over your shoulders, and smear a thin layer of petroleum jelly or barrier cream along the forehead, ears, and neck to catch drips. Work in a well-ventilated room with a wipe-clean surface. If product splashes on skin, wipe it off immediately with an oil-based cleanser or micellar water — once it sets, it can take several days to wear off. Rinse the shower or sink with warm water and a non-abrasive cleaner right after rinsing your hair to prevent permanent blue marks on porous surfaces.

The formula is ammonia-free, peroxide-free, and PPD-free, so it does not further oxidise or swell the hair shaft. Added keratin coats roughened cuticle areas, vitamin E acts as an antioxidant in the mixture, and linseed oil adds slip and shine, which together make the tint feel more like a conditioning treatment than a harsh dye. However, highly porous or chemically stressed hair (e.g., recently bleached, over-processed, or heat-damaged) can grab pigment intensely at the ends while the mid-lengths stay lighter, leading to a patchy result. It also releases colour more quickly with each wash. The manufacturer advises doing a strand test on a small, hidden section first: apply, process for the full time, rinse, and evaluate both the shade and how the hair feels. If the test strand feels gummy or the colour is alarmingly dark, dilute the product with a white conditioner (1:1) for the full application.