I am 28years old and would like to enhance my skin appearance before my wedding. I am interested in mesotherapy for skin rejuvenation and reduction of occasional dark spots from sun damage. Clinics I consulted use very different products including rrs ha whitening; juvaderm volite; Teosyal redensity; Filorga nctf; Xela rederm. Rage costs vary wildly, how do I know which one to choose from please? All look like HA plus some vitamin, why do the cost vary so much?