Lingering pigment changes in the form of dark spots are common after blemishes have healed—and discoloration caused by past pimples (also known as
post-inflammatory hyperpigmentation) can remain long after acne is under control. Retinol, as well as
lipo-hyrdoxy acid, glycolic acid, and salicylic acid, exfoliate the uppermost layers of the skin where
post acne pigment resides to help promote even skin tone and restore radiance.
SkinCeuticals Blemish + Age Defense has been shown to improve active acne and
post-acne dark spots. In a split-face, double-blind clinical trial, this product provided greater improvement
in skin tone and blotchiness, as well as fine lines and rough skin texture, than a prescription
* Kircik, L. H., Dahl, A., Yatskayer, M., Raab, S.,
& Oresajo, C. (2012). Safety and efficacy of two anti-acne/anti-aging treatments in subjects with photodamaged
skin and mild to moderate acne vulgaris. Journal of drugs in dermatology: JDD, 11(6), 737-740.