{"type":"firestarter.listing","listing":{"id":"lst_yKHXtaZ3","product_name":"Sustenance Herbs Asta-Pet | Natural Astaxanthin Antioxidant Support","category":"Supplement","description":"\n\n\nSustenance Herbs · Whole-Body Antioxidant Support\nWhen You Want One Clean Antioxidant That Reaches The Whole Body, This Is 4mg Of Natural Astaxanthin.\nA natural, single-ingredient antioxidant softgel for dogs. Each softgel delivers 4mg of natural astaxanthin from Haematococcus pluvialis, one of nature's most powerful antioxidants, to support eyes, joints, skin, and whole-body wellness at the cellular level.\n\n4mg Natural Astaxanthin Per Softgel From Haematococcus Pluvialis, Not Synthetic Reaches Eyes, Joints, Skin, And Brain One Clean, Simple Ingredient\n\n\n\nWhy Every Dog's Cells Can Use Antioxidant Support\nEvery day, a dog's cells face oxidative stress.\nOxidative stress is invisible, but it is constant. Every breath, every walk, and every year of aging generates free radicals that wear on the body's cells. Antioxidants are how the body defends against that wear, which is why daily antioxidant support makes sense for almost any dog. Some situations make it matter even more: the senior years, an active life, or a focus on eyes, joints, or coat.\n\n\n\nYour dog is aging\nOxidative stress accumulates with the years, so antioxidant support is a natural part of healthy aging.\n\n\n\nYour dog is active or working\nHard exercise ramps up free radicals, so active and working dogs put antioxidants to good use.\n\n\n\nYou want eye and vision support\nAstaxanthin is one of the few antioxidants that reaches the eye, a natural fit for vision wellness.\n\n\n\nYou want skin and coat support\nAntioxidant support reaches the skin too, where it fits into a skin and coat routine.\n\n\n\nYou want one simple ingredient\nYou would rather give one clean, named antioxidant than a crowded multi-ingredient blend.\n\n\n\nWhy Holistic Households Reach For This\nOne of nature's most powerful antioxidants, and it reaches the whole body.\nAstaxanthin is the deep-red pigment that gives salmon and flamingos their color, and it is one of the most powerful antioxidants in nature. What sets it apart is its shape. Its long molecule ","images":["https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-226_e380d2ba-9042-4abb-904c-a0b065addf5d.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-112.png?v=1782781252","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-114.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-116.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-117.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-118.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-119.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-120.png?v=1782781250","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-121.png?v=1782781253","https://cdn.shopify.com/s/files/1/0702/6733/9061/files/CopyofCopyofCopyofCopyofCopyofCopyofUntitledDesign-122.png?v=1782781250"],"price":42.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T14:29:18.680Z"},"share_url":"https://firestarter.network/l/lst_yKHXtaZ3","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_yKHXtaZ3' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sustenance Herbs Asta-Pet | Natural Astaxanthin Antioxidant Support' and a budget_max comfortably above $42.99 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."]}}