Tatcha — Radiant Ritual Stick: Product Extension Strategy For the SCAD ELVTR Cosmetic Marketing & Partnership Program (July 2025), I developed a full strategic brand foundation and product extension plan for Tatcha — one of prestige skincare's most beloved Japanese ritual-inspired brands. The deliverable: a complete go-to-market strategy for a proposed hero product, the Radiant Ritual Stick. The Product: Radiant Ritual Stick A skincare-infused glow balm — a tinted skincare ba