The strongest commercial story for Chios Mastic Gum isn't that it's ancient. It's that an ancient resin now has quantifiable anti-ageing markers that cosmetic buyers can use. Recent work on Chios mastic identified elastase inhibition at IC50 17.30 μg/mL and collagenase inhibition at IC50 31.07 μg/mL, giving formulators a far more precise efficacy language than