Twoje Zdrowie — Health & Supplements Store

The Challenge

Health-product e-commerce in Poland carries constraints most storefronts don't: prices need exact arithmetic (no float rounding at checkout), product copy has to satisfy local health-claim and labeling rules across three languages, and the brand had to land as "trusted pharmacist" — not generic SaaS gradients, not clinical hospital-white, not greenwashed wellness cliché. All three had to be solved before the first product page shipped.

The Approach

• Every price and tax figure stored as a whole number of grosz (the smallest Polish currency unit) rather than a decimal, so checkout math is exact by construction instead of rounded after the fact
• A consistent feature-sliced structure across the codebase, with every mutation going through a validated server-side action rather than a client-trusted form post
• One integration hub sits between the storefront and the marketplace/courier network, so the storefront never talks to those external systems directly and stays decoupled from their sync and label generation
• Product data carries structured nutrition facts, allergen info, and health warnings as machine-readable fields, so regulatory copy renders consistently across Polish, English, and Ukrainian
• Design system built against explicit anti-references written down before any UI shipped — no SaaS-startup gradients, no clinical white-and-blue, no greenwashing leaf icons — landing on a warm forest-green "expert but approachable" register instead

The Outcome