It minimizes the appearance of imperfections gently and safely as it softens fine lines and wrinkles, reduces discoloration, minimizes sagginess, and help restore some of the skins natural ability to resist damage
DOI: 10.1016/j.jep.2016.08.047, Fatima, N., Hafizur, R.M., Hameed, A
Individual concerns and expectations must be discussed because unrealistic aims could lead to greater frustrations ( Statements Author contributions MMB: Writing review & editing, Supervision, Conceptualization, Investigation, Resources, Writing original draft, Visualization, Data curation
1997 Jan;32(1):45-51
It's roughly equivalent to adding 25mcg of thyroid hormone
& Qu, B