Being older helps skin heal with less scarring

Older skin might heal more slowly, but it heals with less scarring than younger skin.
According to new research, published in Cell Reports, the secreted compound stromal-derived factor 1 (SDF1) is present in greater amounts in younger individuals, leading to thicker scars. Older individuals have lower SDF1 levels. This finding could explain why older patients have less significant scarring from surgery or wounds, said researchers from the Perelman School of Medicine at the University of Pennsylvania, Philadelphia.
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