Hello Paula. It will depend on your hair (thickness, amount ...) however, we recommend that you start with a few drops, rub the oil between your hands and apply it evenly. If you think you need more, apply a little more. It is best to go little by little so as not to get unwanted results. All the best.
Hi Clarissa, thank you for your question. It is best that you use it once you have ironed your hair, as it is a finishing oil you will be able to notice better results applying it as the final step of the hairstyle. All the best.