Thanks for the query There are certain areas of the body which are prone to pigmentation, for example the axillary region. Depigmentation can be achieved by a combination of therapeutic modalities. Stretch marks happen due to weight gain or weight loss.. Stretch marks are amenable to different therapeutic modalities with different success rates. Fraxel lasers offers most desirable results and have a downtime of 1-2 weeks. Other modalities include dermaroller with mesotherapy or only dermaroller and platelet rich plasma therapy. Certain topical also assist these treatments. Meet a Dermatologist for better and realistic understanding of the various procedures. Hope it helps.