This dermatologist‑informed, step‑by‑step PDF handbook shows sensitive and reactive skin exactly how to layer: Soothe → Seal → Subtle Brighten → Shield, with precise order, timing, and quantities to stop stinging, pilling, and SPF cast. Includes ready‑to‑print calendars, patch‑test matrices, makeup prep protocols, and troubleshooting playbooks so your glow shows up every morning, even on event days.