我不是看銷量的人，我看的是為什麼第二次沒回來
面膜代工的真實表現，常在電商後台被看見。本文以數據分析人員視角，解析面膜代工如何影響轉換率、退貨比例與回購行為，說明面膜代工若只追求首波銷量，卻忽略使用後體驗，數據終將反映結構性問題。
Between What the Market Wants and What We’re Allowed to Make
Collagen supplement ODM decisions often collide with regulatory limits. This article shows how product managers balance market demand, compliance, and long-term product viability.