This phenomenon explained how B12-deficient patients reported feeling magically rejuvenated within a day or two of their first B12 injection
The National Institutes of Health study reports that between 1.5% and 15% of the public has a deficiency
"Primary Mechanisms of Thymosin 4 Repair Activity in Dry Eye Disorders and Other Tissue Injuries." Investigative Ophthalmology & Visual Science
This is especially true for those that are vegan or have had gastric bypass surgery, since they do not absorb enough B12 to keep your stores well-stocked
There are basically 7 types of fillers, and each type works a little differently: Hyaluronic Acid (Juvederm, Voluma, Volbella, Vollure, Defyne, Reyne, Silk, Lyft, Belotero, Restylane) Calcium Hydroxylapatite (CaHA) (Radiesse) Poly-L-Lactic Acid (Sculptra) Collagen with polymethyl methacrylate (PMMA) beads (Bellafil) Collagen Fat Transfer Illegal Substances (including silicone) Hyaluronic acid fillers are by far the most common