DAF patent (strengthen skin)

The **D.A.F. patent**—short for **Dermatological Advanced Formulation**—is a proprietary technology developed by **NAOS**, the company behind **Bioderma**. It’s designed to **strengthen the skin’s tolerance threshold**, especially in individuals with **sensitive or reactive skin**.

### 🧬 **What It Does**:
– **Boosts Skin Resilience**: Helps the skin become **less reactive** to environmental aggressors like pollution, UV, and harsh ingredients
– **Supports Barrier Function**: Enhances the skin’s **natural defenses**, reducing the likelihood of irritation or inflammation
– **Ecobiological Approach**: Works with the skin’s biology rather than overriding it—aligning with NAOS’s philosophy of **respecting the skin ecosystem**

### 🧴 **Where You’ll Find It**:
– Featured in **Bioderma’s Sensibio range**, especially **Sensibio H2O** and **Sensibio AR**
– Often combined with **soothing actives** like **mannitol, xylitol, and rhamnose** to calm and protect sensitive skin

You can explore more about the [D.A.F. patent on NAOS’s official site](https://ask-naos.ie/patent/d-a-f-patent), where they explain how it helps **raise the skin’s tolerance threshold** and **fortify its resistance**.