{"appears_in":[{"position":5,"ranking_slug":"best-vitamin-c-serums-2026","ranking_title":"2026 年维 C 精华怎么选：先分原型 VC 与衍生物，再看浓度、pH 和包装，8 款从敏感肌入门到高浓度横向对比","score":8.7,"url":"https://www.bestitemlist.com/ranking/best-vitamin-c-serums-2026"}],"brand":"Timeless Skin Care","buy_url":null,"canonical_url":"https://www.bestitemlist.com/product/timeless-20-vitamin-c-e-ferulic","category":{"name":"精华液","slug":"serum"},"cons":["刺激风险更高","不适合新手和敏感肌","跨境渠道需注意新鲜度"],"description":"不建议敏感肌、屏障受损或第一次用 VC 的人从 20% 起步。","id":"2b895e59f83cc01139d22ea363a54615","image_url":null,"name":"Timeless 20% Vitamin C + E Ferulic Acid Serum","official_url":"https://www.timelessha.com/collections/all/products/20-vitamin-c-e-ferulic-acid-serum-1-oz","price":{"currency":"CNY","max":320,"min":190},"pros":["高浓度且价格低","配方路线清楚","多规格可选","官方渠道信息完整"],"release_year":null,"slug":"timeless-20-vitamin-c-e-ferulic","specs":{"浓度":"20%","规格":"30ml 起","维C形式":"L-抗坏血酸","协同成分":"维E、阿魏酸","建议人群":"已建立耐受"},"summary":"把原型 VC 做到常用浓度上限，便宜但不温和。"}