What can happen during the colouring service their causes and how they can be resolved?

During a coloring service, issues such as uneven color, allergic reactions, or damage to the hair can occur. Uneven color may result from improper application or product choice, which can be resolved by ensuring even distribution and selecting the right shade. Allergic reactions can be addressed by performing a patch test prior to the service and using hypoallergenic products if necessary. Hair damage can be minimized by using quality products and incorporating deep conditioning treatments before and after the coloring process.