{"title":"Timeless 20% Vitamin C + E Ferulic Acid Serum","entity_type":"Product","slug":"timeless-20-vitamin-c-e-ferulic-acid-serum","canonical_url":"https://skinknowledgebase.com/products/timeless-20-vitamin-c-e-ferulic-acid-serum","dates":{"date_modified":"2026-05-30","date_reviewed":"2026-05-30"},"mcp_eligible":true,"summary":"Timeless 20% Vitamin C + E Ferulic Acid Serum: formula facts, anti-aging concern fit, price context, routine use, and realistic limits. with evidence-grounded","evidence_sources":[{"title":"Authorized retailer product lookup — Timeless 20% Vitamin C + E Ferulic Acid Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/official-product-page-timeless-20-vitamin-c-e-ferulic-acid-serum","original_source_url":"https://www.sephora.com/search?keyword=Timeless%2020%25%20Vitamin%20C%20%2B%20E%20Ferulic","source_type":"retailer_product_page"}],"product_fact_sources":[],"related_entities":[{"title":"Authorized retailer product lookup — Timeless 20% Vitamin C + E Ferulic Acid Serum","url":"https://skinknowledgebase.com/sources/official-product-page-timeless-20-vitamin-c-e-ferulic-acid-serum"},{"title":"Dark Spots","url":"https://skinknowledgebase.com/concerns/dark-spots"},{"title":"Facial Hyperpigmentation","url":"https://skinknowledgebase.com/concerns/facial-hyperpigmentation"},{"title":"Dullness","url":"https://skinknowledgebase.com/concerns/dullness"},{"title":"Fine Lines","url":"https://skinknowledgebase.com/concerns/fine-lines"},{"title":"Sun Damage","url":"https://skinknowledgebase.com/concerns/sun-damage"},{"title":"Is Timeless 20% Vitamin C + E Ferulic good for dark spots?","url":"https://skinknowledgebase.com/questions/is-timeless-20-vitamin-c-e-ferulic-good-for-dark-spots"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Timeless 20% Vitamin C + E Ferulic Acid Serum is a vitamin C antioxidant serum from Timeless Skin Care. It is included for product-fact analysis: claims, ingredient positioning, price context, directions, and routine fit."]},{"heading":"Compact Product Facts","paragraphs":["- Brand: Timeless Skin Care\n- Product line: Timeless 20% Vitamin C + E Ferulic\n- Full product name: Timeless 20% Vitamin C + E Ferulic Acid Serum\n- Retail URL: https://www.timelessha.com/products/20-vitamin-c-e-ferulic-acid-serum-1-oz"]},{"heading":"Factual Description","paragraphs":["The product is positioned around 20% L-ascorbic acid, vitamin E, and ferulic acid. Supporting formula context includes 20% L-ascorbic acid, vitamin E, ferulic acid. These product facts come from official or authorized product pages and are not treated as independent proof of efficacy."]}],"main_concern":{"title":"Dark Spots","url":"https://skinknowledgebase.com/concerns/dark-spots"},"key_ingredients":[],"retail_url":"https://www.timelessha.com/products/20-vitamin-c-e-ferulic-acid-serum-1-oz"}