Stretch Marks are depressed lines or bands of thin reddened skin, which later become white, smooth, shiny, and depressed, occurring in response to changes in weight or muscle mass and skin tension.[1] They are commonly referred to as stretch marks.
February 17 2016

Stretch marks are a form of scarring on the skin with an off-color hue.

Br J Dermatol. 2013. Striae distensae: A comprehensive review and evidence-based evaluation of prophylaxis and treatment. Striae distensae are an extremely common, therapeutically challenging form of dermal scarring. Risk factors have been reported but much remains to be understood about their epidemiology, diagnosis and treatment. Up-to-date knowledge of the scientific research and the evidence behind both preventative and therapeutic agents is vital in order to understand striae and to offer patients the best therapeutic alternatives. We present a clinical review of the current literature concerning striae distensae and both their prevention and treatment. A systematic review of the literature was undertaken utilising MEDLINE, EMBASE and Google scholar. Articles in English, Spanish, Portuguese, Turkish and French were included. Striae distensae occur in pregnancy, puberty and obesity as well as in numerous medical conditions and following therapeutic interventions. Aetiological mechanisms proposed relate to hormones, physical stretch and structural alterations to the integument. Assessment methods include subjective visual scoring and various imaging modalities. Treatments, which we have evaluated, include topical agents used prophylactically or therapeutically as well as light and laser therapies, which have shown improvements in the appearance of striae. No high quality, randomised controlled trials evaluating treatments for stretch marks exist. Topical therapeutic agents appear to lack efficacy in the prevention.

I am a male 25 yrs old. I was obese and as I reduced to a fit body , I developed a lot of stretch marks on my body. Does collagen supplement help to fade it off, or what is the best option I have?
   We are not aware of any natural products we have that would help stretch marks.