{"title":"Matta 2019 — Sunscreen Active Ingredients Absorption Study","entity_type":"Source","slug":"matta-2019-sunscreen-active-ingredients-absorption","canonical_url":"https://skinknowledgebase.com/sources/matta-2019-sunscreen-active-ingredients-absorption","dates":{"date_modified":"2026-05-16","date_reviewed":"2026-05-16"},"mcp_eligible":true,"evidence_sources":[],"product_fact_sources":[],"related_entities":[{"title":"Oxybenzone","url":"https://skinknowledgebase.com/ingredients/oxybenzone"},{"title":"Is mineral sunscreen better than chemical sunscreen?","url":"https://skinknowledgebase.com/questions/is-mineral-sunscreen-better-than-chemical-sunscreen"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Matta 2019 measured plasma concentrations of sunscreen active ingredients under maximal-use conditions."]},{"heading":"What Studied","paragraphs":["Randomized clinical trial evaluating systemic absorption of selected sunscreen active ingredients under maximal-use application."]},{"heading":"Main Findings","paragraphs":["The study found measurable plasma concentrations of several sunscreen active ingredients, including avobenzone and oxybenzone, under the test conditions."]},{"heading":"Why It Matters","paragraphs":["It supports careful discussion of absorption data without treating measurable absorption as proof of harm."]}],"source_type":"peer_reviewed","original_source_url":"https://pubmed.ncbi.nlm.nih.gov/31058986/"}