{"type":"firestarter.listing","listing":{"id":"lst_Wcw0KiNU","product_name":"Solstice C Serum","category":"Serum","description":"Daily brightening, redefined.\nA next-generation brightening and hydrating serum powered by a breakthrough peptide to visibly reduce the look of dark spots and restore clarity. With a silky texture, this precision formula targets uneven tone, texture, and dehydration while supporting skin vitality and barrier health.\nWhy You'll Love It\n\n\nNext-gen brightening delivers results through a bioactive silk peptide clinically proven to reduce the appearance of hyperpigmentation and acne spots while improving visible brightness and radiance, and clinically shown to soothe and calm the appearance of redness.\n\n\nClinically studied vitamin C derivatives and niacinamide work through multiple pathways to refine tone and texture, improve clarity, and support collagen, while astaxanthin and marine-derived antioxidants help protect and defend against oxidative stress to maintain skin vitality over time.\n\n\nMulti-layered system of marine bioferments, humectants, and barrier-supporting actives helps skin retain hydration, smooth texture, and maintain suppleness for an even, resilient complexion.\n\n\nSuitable for many skin types, including combination, dry, oily, and sensitive. Great for textured, uneven skin. Explore ingredients.1 oz | 30 ml","images":["https://cdn.shopify.com/s/files/1/0251/0870/9412/files/Solstice_C_Serum.jpg?v=1761666210","https://cdn.shopify.com/s/files/1/0251/0870/9412/files/Solstice_C_Serum_Texture.jpg?v=1774121907","https://cdn.shopify.com/s/files/1/0251/0870/9412/files/SolsticeC_Close-up.jpg?v=1774121907","https://cdn.shopify.com/s/files/1/0251/0870/9412/files/SOLSTICE_C_MORNING_LAYERING_ORDER.png?v=1774121907","https://cdn.shopify.com/s/files/1/0251/0870/9412/files/Solstice_C_Serum_Brightening_and_Clarity.jpg?v=1774121907"],"price":150,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:48.198Z"},"share_url":"https://firestarter.network/l/lst_Wcw0KiNU","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_Wcw0KiNU' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Solstice C Serum' and a budget_max comfortably above $150.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}