Kiehl's Clearly Corrective Dark Spot Solution is a clinically proven brightening facial serum designed to visibly reduce the appearance of dark spots, hyperpigmentation, and post-acne marks. The jumbo 3.4 fl oz (100 ml) size offers significant value compared to the standard 1 fl oz bottle sold at retail.

The formula is powered by Activated C, a potent and renewable form of Vitamin C that penetrates skin quickly to visibly even skin tone and improve clarity. Buffered Salicylic Acid works at the skin's surface to exfoliate cells and promote a more even complexion. Proxylane and Peony Extract further support skin-plumping and brightening benefits. The serum is paraben-free, mineral oil-free, and dye-free, and is suitable for all skin types including sensitive skin.

In clinical testing, 97% of users showed reduced dark spot intensity after 12 weeks, 98% showed a more even skin tone, and 93% showed more radiant skin. Apply morning and night before moisturizer as a spot treatment or across the entire face. May also be used on visible discolorations on the hands, neck, and chest. For optimal results, pair with a daily SPF sunscreen.