Retinol, being gentler, has a lower irritation potential but causes dryness
Structural improvements including firmness, fine line reduction, and collagen density changes become visible between weeks 6 and 12, as the first full collagen remodeling cycle completes
Deng C, Gao C, Tian X, Chao B, Wang F, Zhang Y, et al
Third treatment didnt relieve my symptoms either
Skin Type : Sensitive skin may need a more gentle approach to both tan removal and skin brightening
Patients with low energy, those over 40 (B12 absorption decreases with age), vegetarians/vegans (limited dietary B12), patients on metformin or PPI medications (which decrease B12 absorption), patients on weight management programs, and anyone wanting energy and metabolic support