Collagen is a protein in people and animals. It is a main building material in skin, bones, tendons, and other tissue that holds the body together — the name is tied to glue, because animal glue was made from it.

Collagen膠原蛋白 is a protein in people and animals是人和動物體內的一種蛋白質。It它 is a main building material是主要的構成材料 in skin, bones, tendons, and other tissue that holds the body together存在於皮膚、骨骼、肌腱，以及其他把身體連結在一起的組織裡 — the name這個名字 is tied to glue跟膠有關係, because因為 animal glue was made from it動物膠以前就是用它做的。

In everyday talk, especially around beauty shops and adverts, it is the protein in creams, drinks, and clinic treatments that claim to make skin look younger. Scientists use it as a precise body-protein word; advertisements stretch it.

In everyday talk在日常說法裡, especially around beauty shops and adverts尤其是在美容店和廣告裡, it它 is the protein in creams, drinks, and clinic treatments是乳霜、飲品，和診所療程裡的那種蛋白質 that claim to make skin look younger聲稱能讓皮膚看起來更年輕。Scientists科學家 use it as a precise body-protein word把它當成精確的身體蛋白質用詞來用；advertisements廣告 stretch it則把它延伸擴大。

Your body already makes collagen. Eating it or spreading it on the face does not simply “pour youth back in” the way some ads suggest, though people still use those products and research on supplements is mixed. Say what it is, and leave the magic claims to the bottle.

Your body你的身體 already makes collagen本來就會製造膠原蛋白。Eating it or spreading it on the face吃它或塗在臉上 does not simply "pour youth back in" the way some ads suggest並不會像某些廣告說的那樣直接把青春「倒回去」, though即使 people人們 still use those products還是會用那些產品 and而 research on supplements is mixed關於補充品的研究結果也很分歧。Say what it is照實說它是什麼, and而 leave the magic claims to the bottle把那些神奇的說法留給瓶身廣告去講。