To use Arctic Fox Cosmic Sunshine Hair Colour, first make sure your hair is lightened to level 8 or lighter for the best results. If your hair has brassy tones, it'll give the color a golden glow. You can mix Cosmic Sunshine with Neon Moon to get a lighter, truer yellow. Before applying the color, always do a patch and strand test to avoid any allergic reactions. Put on some old clothes and gloves to protect yourself from stains. Apply the hair color evenly to your hair and let it sit for the recommended time. Rinse it out until the water runs clear. After coloring, use a good conditioner to keep your hair hydrated. Keep your colored hair away from chlorine and excessive sunlight to maintain the color for longer.