科颜氏维生素C紧肤精华乳液
科颜氏首款“发热精华”, 富含10.5%精纯左旋维C①+2%维生素Cg②，添加玻尿酸③，无水配方，鲜活卓效。
科颜氏12.5%④高浓维C精华⑤， 高浓抗氧+深层激活胶原蛋白⑥，对抗轻熟肌暗黄粗糙，淡化三大初老纹⑦。

①指配方中添加的抗坏血酸浓度为10.5%
②指配方中添加的抗坏血酸糖苷浓度为2%
③水解透明质酸
④指配方中添加的抗坏血酸和抗坏血酸葡糖苷的浓度为12.5%
⑤科颜氏维生素C紧致亮肤精华乳液 国妆备进字J20179737US
⑥指维生素C活性物可以促进胶原蛋白生成
⑦指木偶纹、抬头纹、法令纹，三方实验资料， 志愿者每日使用两次持续两周后的前后对比，实际效果因人而异
 
Powerful-Strength Line-Reducing Concentrate
Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.