{"title":"Sunday Riley A+ High-Dose Retinoid Serum","entity_type":"Product","slug":"sunday-riley-a-high-dose-retinoid-serum","canonical_url":"https://skinknowledgebase.com/products/sunday-riley-a-high-dose-retinoid-serum","dates":{"date_modified":"2026-05-30","date_reviewed":"2026-05-30"},"mcp_eligible":true,"summary":"Sunday Riley A+ High-Dose Retinoid Serum: formula facts, anti-aging concern fit, price context, routine use, and realistic limits. with evidence-grounded","evidence_sources":[{"title":"Authorized retailer product lookup — Sunday Riley A+ High-Dose Retinoid Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/official-product-page-sunday-riley-a-high-dose-retinoid-serum","original_source_url":"https://www.sephora.com/search?keyword=Sunday%20Riley%20A%2B%20High-Dose%20Retinoid%20Serum","source_type":"retailer_product_page"}],"product_fact_sources":[],"related_entities":[{"title":"Authorized retailer product lookup — Sunday Riley A+ High-Dose Retinoid Serum","url":"https://skinknowledgebase.com/sources/official-product-page-sunday-riley-a-high-dose-retinoid-serum"},{"title":"Fine Lines","url":"https://skinknowledgebase.com/concerns/fine-lines"},{"title":"Wrinkles","url":"https://skinknowledgebase.com/concerns/wrinkles"},{"title":"Large Pores","url":"https://skinknowledgebase.com/concerns/large-pores"},{"title":"Dullness","url":"https://skinknowledgebase.com/concerns/dullness"},{"title":"Skin Sensitivity","url":"https://skinknowledgebase.com/concerns/skin-sensitivity"},{"title":"Retinoid Blend","url":"https://skinknowledgebase.com/ingredients/retinoid-blend"},{"title":"Is Sunday Riley A+ High-Dose Retinoid Serum good for fine lines?","url":"https://skinknowledgebase.com/questions/is-sunday-riley-a-high-dose-retinoid-serum-good-for-fine-lines"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Sunday Riley A+ High-Dose Retinoid Serum is a retinoid serum from Sunday Riley. It is included for product-fact analysis: claims, ingredient positioning, price context, directions, and routine fit."]},{"heading":"Compact Product Facts","paragraphs":["- Brand: Sunday Riley\n- Product line: Sunday Riley A+ High-Dose Retinoid Serum\n- Full product name: Sunday Riley A+ High-Dose Retinoid Serum\n- Retail URL: https://sundayriley.com/products/a-high-dose-retinoid-serum"]},{"heading":"Factual Description","paragraphs":["The product is positioned around retinoid blend, antioxidant-positioned support, soothing extracts, and humectants. Supporting formula context includes retinoid ester and retinol blend, CoQ10-style antioxidant positioning, soothing extracts, humectants. These product facts come from official or authorized product pages and are not treated as independent proof of efficacy."]}],"main_concern":{"title":"Fine Lines","url":"https://skinknowledgebase.com/concerns/fine-lines"},"key_ingredients":[{"title":"Retinoid Blend","url":"https://skinknowledgebase.com/ingredients/retinoid-blend"}],"retail_url":"https://sundayriley.com/products/a-high-dose-retinoid-serum"}