# NutraFocus, Inc. > Help center and documentation for NutraFocus, Inc. ## FAQ - Q: What is HALLMARK? A: HALLMARK is a free-radical fighting, antioxidant, anti-inflammatory, adaptogenic powerhouse specifically designed to promote all 11 Hallmarks of Healthy Cells. Promoting the 11 Hallmarks helps your cells stay on the healthy path, avoiding the 11 dangerous (metabolic) detours that lead cells toward c ## Search For specific questions, search: https://app.helpshelf.com/help/nutrafocus-inc/search?q={query} ## AI Agent Access - [Full product context](https://app.helpshelf.com/help/nutrafocus-inc/llms-full.txt): policy-checked verified documentation, or guarded-access guidance when bulk export is unavailable - MCP endpoint: https://app.helpshelf.com/api/mcp/8af5ab4a43ae (streamable HTTP) with tools: search_docs, ask, get_article, get_product_context Send `Accept: application/json, text/event-stream` — a compliant Streamable HTTP server answers 406 without both media types. - [MCP server card](https://app.helpshelf.com/help/nutrafocus-inc/.well-known/mcp/server-card.json): machine-readable description of the endpoint above - [Agent skills](https://app.helpshelf.com/help/nutrafocus-inc/.well-known/agent-skills/index.json): how to use this documentation, as an Agent Skill - Markdown: any article URL returns Markdown when requested with `Accept: text/markdown` AI agents have read-only access to published documentation. This MCP endpoint never creates tickets, notifications, or other account mutations.