Placeholder. Brazil has a completely different sunscreen trust model than every other market researched — not lab-based certification, but a crowdsourced consumer-complaint-resolution platform (Reclame Aqui) whose scores are explicitly cited in brand rankings.
What we've found so far: Reclame Aqui brand-level complaint-resolution scores are explicitly used as a ranking criterion in independent Brazilian sunscreen comparisons, a structurally different model from EWG/CHOICE/Which?-style lab verification.
Open research: Interview Reclame Aqui directly on methodology and how brands respond to public complaints; check whether similar complaint-platform-driven trust models exist in other Latin American markets.