Hey i was wondering what is the best cream to use for post-acne dark spots / scars?

Many Options: Avoid products with mineral oil, propylene glycol, petrolatum and even shea butter as these ingredients may clog pores and make acne worse. Skinceuticals, obagi, and cosmo grade may be great resources for you.

Early salicylic late: Early on, salicylic a i'd preparations may limit inflammation which can produce hyperpigmentation. Late pigmentation can be treated with bleaching agents such as hydroquinone in combination with a retinoid and steroid. Alternatively, som chemical peels or fractionated laser treatments can also produce nice results.