A skin booster is a procedure that involves the shallow injection of hyaluronic acid and other substances into the dermis to improve skin quality—such as hydration, elasticity, and texture—and differs in purpose from volume fillers, which are used to restore volume to sunken areas. In one randomized controlled study, intradermal injections of non-crosslinked hyaluronic acid administered once a month for three sessions resulted in a reduction of approximately 10% in skin stiffness(an indicator of elasticity) decreased by approximately 10%, while dermal thickness and skin radiance improved; these effects were interpreted as resulting from the stimulation of fibroblasts rather than volume restoration. Local reactions (such as bruising and swelling) were generally mild and resolved within a few days. However, injectable formulations designed for hydration and regeneration vary widely in ingredients and types, and reactions and duration of results differ depending on an individual’s skin condition. It is important to confirm the treatment goals, expectations, and product characteristics during a consultation. This information is for informational purposes only and does not constitute a diagnosis. Please consult a specialist regarding actual procedures.
[Source] https://pmc.ncbi.nlm.nih.gov/articles/PMC3778226/