Breastmilk Money is an integrated health and financial initiative that reframes breastfeeding as measurable wealth. Built inside the Herconomy mobile banking app, the initiative allows Nigerian mothers to calculate how much money they save by breastfeeding instead of purchasing formula and transfer that amount directly into a dedicated savings account earning 14.3 percent interest. The milk to money calculator uses WHO intake averages and live Nigerian formula prices to generate a personalized monthly savings figure. That same number became the unifying message across all channels. A short film brought emotional depth to the issue. Out of home placements made breastfeeding’s financial value visible in public space. Social media and live educational sessions with doctors and lactation specialists reinforced credibility. Events and live demonstrations showed mothers how to calculate and deposit their savings in real time. In a market where formula is marketed as aspirational and breastfeeding is often stigmatized or undervalued, Breastmilk Money integrated storytelling, education, and product design into one cohesive system. Beyond awareness, it drove direct action, repeat engagement, and meaningful behavior change.