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We Tested L'Oréal Purple Hair Dye: Real Results, Hold, and Pro Maintenance Tips

Re-entry coloring often signals capillary changes, and purple is a bold choice. We went with a deep, nuanced shade—not Prince's vibrant purple, but a sophisticated alternative. Here's our hands-on experience with application, results, and upkeep.

Which Color for Your Hair Type?

Results vary by hairdresser and hair type, but we didn't go solo—a pro handled it. On my thick, robust brunette hair, the L'Oréal Violine 4.20 needed a full hour to set deeply. Patience pays off: the longer it processes, the richer the uptake. Lighter brown hair takes less time than darker shades.

The Results: What to Expect

Don't expect explosive unicorn vibes. Color builds on your natural base, so on brunette hair like mine, it's subtle and discreet. For punchy purple, red, or pink, bleaching is required—but it damages hair significantly. Outcomes depend on your hair's porosity and starting shade.

How Does the Color Hold Over Time?

The first two weeks shine bright since it's fresh. But shampooing reveals the catch: ultra-pigmented formulas run like wine! Skip dry shampoos—they strip pigment fast. Multiple washes won't 'fix' excess; they just fade it quicker. Pigments stain, so swap to dark pillowcases, especially with damp hair. Weeks in, roots show, and shine dims.

Pro Tips for Maintaining Your Purple Hue

Opt for gentle, low-lather shampoos over dry formulas that zap sebum. Color-specific shampoos and masks protect vibrancy. Wash weekly max—frequent sudsing accelerates damage. Boost with a pigmentation enhancer mixed into your mask from your salon. Coloring demands commitment, but these steps keep it looking fresh.

Coloring is hard work!