Insight Intense Perm 1A is a professional permanent system for obtaining perfect curls, for natural and resistand hair. Never use under a heat source. After shampooing and thorough rinsing, wrap hair around rollers of the desired shape. Place cotton wool along the hairline. Carefully apply Perm 1A on each roller, starting from the back. Cover with a cap and leave on for 10 to 20 minutes max., checking at 5 minute intervals. Rinse thoroughly with lukewarm water, roller by roller. Towel dry thoroughly and apply the neutralizer product, leaving it in for no more than 10 minutes. Unroll the rollers without pulling the hair and reapply the neutralising product, leaving it in for a few minutes. Rinse thoroughly with water only. If necessary, apply a small amount of conditioner, leaving it in for a few minutes, then rinse. Dry.