{"title":"La Roche-Posay Mela B3 Dark Spot Serum","entity_type":"Product","slug":"la-roche-posay-mela-b3-dark-spot-serum","canonical_url":"https://skinknowledgebase.com/products/la-roche-posay-mela-b3-dark-spot-serum","dates":{"date_modified":"2026-05-18","date_reviewed":"2026-05-18"},"mcp_eligible":true,"summary":"La Roche-Posay Mela B3 Dark Spot Serum is a facial serum with Melasyl, 10% niacinamide, glycerin, sodium hyaluronate, and fragrance-disclosure formula notes.","evidence_sources":[{"title":"AAD — How to fade dark spots in darker skin tones","canonical_citation_url":"https://skinknowledgebase.com/sources/aad-fade-dark-spots-darker-skin-tones","original_source_url":"https://www.aad.org/public/everyday-care/skin-care-secrets/routine/fade-dark-spots","source_type":"other"},{"title":"DermNet — Postinflammatory hyperpigmentation","canonical_citation_url":"https://skinknowledgebase.com/sources/dermnet-postinflammatory-hyperpigmentation","original_source_url":"https://dermnetnz.org/topics/postinflammatory-hyperpigmentation","source_type":"medical_reference"},{"title":"Target Product Page — La Roche-Posay Mela B3 Dark Spot Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/target-product-page-la-roche-posay-mela-b3-dark-spot-serum","original_source_url":"https://www.target.com/p/la-roche-posay-mela-b3-dark-spot-serum-with-melasyl-and-10-niacinamide-1-fl-oz/-/A-89209537","source_type":"retailer_product_page"}],"product_fact_sources":[{"title":"La Roche-Posay Singapore Product Page — Mela B3 Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/la-roche-posay-singapore-product-page-mela-b3-serum","original_source_url":"https://www.laroche-posay.sg/mela-b3/mela-b3-serum","source_type":"official_product_page"}],"related_entities":[{"title":"AAD — How to fade dark spots in darker skin tones","url":"https://skinknowledgebase.com/sources/aad-fade-dark-spots-darker-skin-tones"},{"title":"DermNet — Postinflammatory hyperpigmentation","url":"https://skinknowledgebase.com/sources/dermnet-postinflammatory-hyperpigmentation"},{"title":"Target Product Page — La Roche-Posay Mela B3 Dark Spot Serum","url":"https://skinknowledgebase.com/sources/target-product-page-la-roche-posay-mela-b3-dark-spot-serum"},{"title":"La Roche-Posay Singapore Product Page — Mela B3 Serum","url":"https://skinknowledgebase.com/sources/la-roche-posay-singapore-product-page-mela-b3-serum"},{"title":"Facial Hyperpigmentation","url":"https://skinknowledgebase.com/concerns/facial-hyperpigmentation"},{"title":"Dark Spots from Acne","url":"https://skinknowledgebase.com/concerns/dark-spots-from-acne"},{"title":"Dullness","url":"https://skinknowledgebase.com/concerns/dullness"},{"title":"Melasyl","url":"https://skinknowledgebase.com/ingredients/melasyl"},{"title":"Niacinamide","url":"https://skinknowledgebase.com/ingredients/niacinamide"},{"title":"Hyaluronic Acid","url":"https://skinknowledgebase.com/ingredients/hyaluronic-acid"},{"title":"Is La Roche-Posay Mela B3 Serum any good?","url":"https://skinknowledgebase.com/questions/is-la-roche-posay-mela-b3-serum-any-good"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["La Roche-Posay Mela B3 Dark Spot Serum is a dermocosmetic facial serum positioned around Melasyl and 10% niacinamide. Target verifies the 1 fl oz product title and INCI, while the La Roche-Posay Singapore page cross-checks Melasyl, niacinamide, and the full ingredient list."]},{"heading":"Compact Product Facts","paragraphs":["- Brand: La Roche-Posay\n- Product line: Mela B3\n- Full product name: La Roche-Posay Mela B3 Dark Spot Serum\n- Cost: {\"currency\":\"USD\",\"checked_at\":\"2026-05-18\",\"single_unit\":44.99}\n- Retail URL: https://www.laroche-posay.us/our-products/face/face-serum/mela-b3-dark-spot-serum-with-melasyl-niacinamide-melab3serum.html"]},{"heading":"Factual Description","paragraphs":["Target identifies La Roche-Posay Mela B3 Dark Spot Serum with Melasyl and 10% Niacinamide in a 1 fl oz size. The Target and La Roche-Posay Singapore pages list water, dimethicone, niacinamide, glycerin, propylene glycol, polysilicone-11, silica, 2-mercaptonicotinoyl glycine, sodium hyaluronate, sodium thiosulfate, carnosine, dipotassium glycyrrhizate, caprylic/capric triglyceride, capryloyl salicylic acid, retinyl palmitate, tocopherol, phenoxyethanol, CI 17200 / Red 33, and fragrance among the formula ingredients. This page draws on the Target listing and the La Roche-Posay Singapore product page for source-attributed formula facts."]}],"main_concern":{"title":"Facial Hyperpigmentation","url":"https://skinknowledgebase.com/concerns/facial-hyperpigmentation"},"key_ingredients":[{"title":"Melasyl","url":"https://skinknowledgebase.com/ingredients/melasyl"},{"title":"Niacinamide","url":"https://skinknowledgebase.com/ingredients/niacinamide"},{"title":"Hyaluronic Acid","url":"https://skinknowledgebase.com/ingredients/hyaluronic-acid"}],"cost":{"currency":"USD","checked_at":"2026-05-18","single_unit":44.99},"retail_url":"https://www.laroche-posay.us/our-products/face/face-serum/mela-b3-dark-spot-serum-with-melasyl-niacinamide-melab3serum.html"}