Hyperpigmentation and redness
Hyperpigmentation or redness left behind by old acne can take months to resolve (approximately 6 months after the lesion first appears). The good news is that the spots will eventually resolve. Some formulas can help speed this up a little bit, including the active ingredients in many of our topical mixes.
Of course, the sun makes pigmentation linger more, so sunscreen helps ensure that spots go away as quickly as possible.