A human study on PCL injections confirmed dermal neocollagenesis accompanied by delicate inflammation and foreign system variety giant cells, suggesting a needed degree of inflammation for collagen output stimulation. 相較之下，透過直接注射至真皮層的「膠原蛋白針」，不僅克服塗抹與口服等方式的侷限，可精準輸送至目標部位，達到立即填補凹陷、改善臉部輪廓等效果，還能持續供給養分，逐漸改善膚... https://spencerrsrpo.theblogfairy.com/34424745/laetigen-for-dummies