There is really no one size fits all method of injecting the lips. Each patient needs to have their injections customize to their particular needs. Although it is very common to augment the vermilion border it is not absolutely necessary in every case. One of the typical findings of the aging lips is that there is a loss of volume at the transition between the white and pink lip (the vermilion border). This can cause a loss of the gentle slope from white lip to pink lip which is characteristic of youth. For that reason the vermilion border is often augmented to help restore those natural contours. However, if you already have adequate volume at the vermilion border and just need more volume in the substance of the lip, then augmentation of the vermilion can be skipped. I would recommend finding an injector in your area and sharing your specific concerns. Together you can craft a treatment plan to meet your goals. I hope this helps, good luck!!