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Hair color basics for cosmetology students, from levels to your first formulas.

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Posts

  • For Students

    Hair Color Mixing Ratios Explained: 1:1, 1:1.5 and 1:2, Brand by Brand

    What 1:1, 1:1.5 and 1:2 really mean, how to measure them on a scale, and the mixing ratio for 17 professional lines.

    Updated October 23, 2026

  • For Students

    Permanent vs Demi vs Semi-Permanent Hair Color

    How permanent, demi and semi-permanent color differ in lift, developer, gray coverage and wear, with real shade examples.

    Updated October 21, 2026

  • For Students

    The Hair Color Wheel: How to Neutralize Brass, Orange and Red

    Learn the color wheel pairs, which warm pigment shows at each level, and which ash, blue, violet or green shade cancels it.

    Updated October 21, 2026

  • For Students

    Hair Color Levels 1 to 10: A Cosmetology Student's Guide

    What hair color levels mean, the underlying pigment at each level, and how to find a client's natural level, with practice questions.

    Updated October 19, 2026

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