Peter Thomas Roth Pro Strength Niacinamide Discoloration Treatment is a lightweight cream that treats dark spots, post-acne marks and dull, uneven skin. His mission: to combine effective and potent ingredients with advanced technology. Read our review of Peter Thomas Roth's Pro Strength Niacinamide Discoloration Treatment, which started giving this beauty editor results in just one week. Dermatologists explain why it’s so effective in serums, plus the best ones to try. See 8 member reviews and photos. Peter Thomas Roth Labs, LLC is a skin care brand founded in 1993. See 326 member reviews and photos. I … Find reviews & ingredients at Beautypedia. Niacinamide can keep oil in check, reduce redness, and give your skin a glow. Deciem The Ordinary Niacinamide 10% + Zinc 1%: rated 3 out of 5 on MakeupAlley. * The company sells its products online. the pro strength niacinamide discoloration treatment, works to reduce the look of dark patches, post-blemish marks and uneven skin tone caused by sun damage - Sephora User even when i get a good night's sleep, i still have noticeable dark spots so by using this product, it has drastically decreased the discoloration Peter Thomas Roth’s Prostrength Niacinamide Discoloration Treatment 15% Brightening Complex is a great skin brightener. Peter Thomas Roth Professional 3% Retinoid Plus: rated 5 out of 5 on MakeupAlley. Peter Thomas Roth's family owned and operated spas in Hungary, and was inspired to create his own skin care by the formulas used there. It's powered by a 15 percent brightening complex that includes niacinamide, tranexamic acid, kojic acid and alpha-arbutin.