@drsermedmezher: Stretchmarks After Weight Loss? Doctor Explains. Sources- PMID 41537058 emmaa.getsfitt on TT Stretch marks, or striae, occur when rapid weight fluctuations cause the skin's supportive collagen and elastin network to overstretch and tear beneath the surface. For newer, red or purple stretch marks, prescription topical retinoids like tretinoin are often the first line of medical defense. Retinoids work by penetrating the skin to actively stimulate new collagen production and accelerate cellular turnover. This biological rebuilding process helps thicken the dermal layer and visibly narrows the fresh tears, though it is important to understand that they are far less effective on older, faded marks and cannot completely erase the scarring. For more significant fading or treating mature, silvery-white stretch marks, clinical laser therapy offers a more intensive and structural solution. Pulsed dye lasers specifically target the inflamed blood vessels in newer marks to rapidly reduce redness, while fractional resurfacing lasers create microscopic thermal wounds deep within the tissue to force a dramatic healing response. This controlled damage triggers an aggressive remodeling of collagen and elastin, profoundly improving the indented texture and blending the scars with the surrounding skin, even though the fundamental structural tear will always remain a permanent part of your skin's history. #skin #beauty #weightloss

Dr Sermed Mezher MBChB MRes

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Saturday 02 May 2026 17:58:42 GMT