How do I prepare and apply the powder for the most even result?

Each box contains three 20 g sachets. For shoulder-length hair of average thickness, one sachet is usually sufficient; longer or thicker hair may need two. Mix the powder with warm (not boiling) water until you have a smooth, yogurt-thick paste — roughly 50–60 ml water per 20 g sachet. Let it sit 10–15 minutes to allow the lawsone to release. Apply to clean, damp (not soaking) hair, section by section, wearing gloves. Cover with a shower cap and wrap a towel around it to keep warmth in; heat helps pigment uptake. Leave for 1–3 hours depending on desired intensity — longer gives deeper tone. Rinse thoroughly with water only; avoid shampoo for 24–48 hours so the colour can oxidise and settle. The shade continues to develop over the next two days. Store unused sachets in a cool, dry place with the foil sealed. Do not use on eyelashes or eyebrows.