Kiehl's Clearly Corrective Dark Spot Correcting Serum Shah also likes the vitamin C and salicylic acid combo found in this Kiehl’s formula, which specifically aims to target dark spots ...

Despite its efficacy, vitamin C is notoriously unstable and can quickly go from a hyperpigmentation-zapping wonder ingredient to a $60 bottle of smelly serum. That’s why it’s important to find ...

13, 2025 /PRNewswire/ -- Kiehl's Since 1851 is excited to announce that ... Powerful Strength Vitamin C Serum, Micro-Dose Anti-Aging Retinol Serum, and new formulations such as Better Screen ...