Links to these are in my broadcast channel, Tea With T. There are still limited studies on lip pigmentation hence ingredients that are often known to work on pigmented skin are used Minimalist Lip Treatment Balm for Lightening Dark Lips, Hydrating & Softening 8% L Ascorbic Acid with Vitamin E, Radianskin & Glycerine For Women & Men 0.42 Oz 12 gm : Clinique Vitamin C Lip Smoothie Goodness Grapecious Beautylish Farmacy Beauty Lip Smoothie Vitamin C + Peptide Lip Balm Space NK Farmacy Beauty Lip Smoothie Vitamin C + Peptide Lip Balm Space NK