@hairlossremedy: Think of your skin like a brick wall — skin cells are the bricks, mortar holds them together. Over time that mortar breaks down and crumbles, just like real mortar does. Surface exfoliation can’t reach deep enough to clear it out. That’s where glycolic acid may help — its smaller molecule size may reach deeper into that mortar layer. Comment ACIDS for your free guide to skincare acids. Not medical advice — for educational purposes only. #skincareover40 #skincareacids #skinbarrier #glycolicacid