How do I apply it for the most even result, and what precautions should I take? — TONING SEMI-PERMANENT EFFECT COLOR Bad Girl LAVENDER 150ML

Start with a patch test 48 hours before full application: dab a small amount behind the ear or on the inner forearm, leave for the recommended development time, rinse, and watch for any reaction. Even without PPD, ammonia, or peroxide, sensitivities can occur.

For the colouring itself:

1. Wash hair with a gentle shampoo (no heavy conditioners or oils) and towel-dry until damp, not dripping.
2. Put on the gloves provided — direct dyes stain skin and nails quickly.
3. Section hair and apply evenly from roots to ends using a brush or gloved fingers. Work methodically to avoid missed patches.
4. Leave on for the time indicated on the packaging (typically 10–30 minutes). Check the strand test you did earlier to gauge your ideal timing.
5. Rinse with cool water until it runs clear. Skip shampoo for this first rinse; a light conditioner is fine.

Porous ends absorb pigment faster. If your lengths are more damaged than your roots, consider applying to the mid-lengths and ends a few minutes after the roots, or diluting the product slightly with a white conditioner for the porous areas. Avoid heat styling immediately after — let the cuticle settle for 24–48 hours for better retention.