ColosGain built its name on helping underweight, low-immunity kids catch up, but its look hadn't caught up with a more modern, premium ambition. The insight: for a mother, growth never comes all at once: it's a little more height, a little more confidence, a little at a time. "Thêm từng chút một" reframes ColosGain's four pillars - weight, immunity, brain, height - around a child's everyday milestones, anchored in the "going to school" moment. The campaign runs a full-year visual system, shifting from a playful pastel world in Q1–Q2 to a paper-craft toy world in Q3–Q4, carried by 24+ social posts each quarter tuned to summer, back-to-school, and year-end moments.