European research with 20 patients demonstrated sizeable dermal excellent enhancement and atrophic acne scar reduction from PN injections, confirming its protection and performance as one treatment method. Nevertheless, this requires larger sized, extended-phrase randomized research for more conclusive proof. 然而，生產人源膠原蛋白的成本不斐，並需要高度純化和安全處理，以確保無病原體污... https://laetigen37158.blogoscience.com/41413250/details-fiction-and-laetigen