In general, the main considerations are:
1. Patient suitability for the treatment. For example, patient on blood thinners should avoid injectables.
2. Proven therapies for the specific condition. It is important to balance effectiveness vs safety.
3. Skills & Experience of the practitioner.
4. Tolerability for downtime e.g. post-treatment redness, bruising and pigmentation.
5. Cost considerations.
It is important to note:
A. Early eyebags may be improved by energy-based skin tightening devices and filler injections.
B. Tear trough by filler injections.
C. There are several causes of dark eye rings. A proper assessment by your preferred Aesthetic doctor is needed. He will determine if the underlying cause may be corrected by lightening creams and/or laser treatment.
Hope this helps!