CI 14700; RED 4; FD&C Red No. 4 (coloring agent)

**CI 14700**, also known as **Red 4** or **FD&C Red No. 4**, is a **synthetic monoazo dye** used in cosmetics as a **colorant** to impart a **vibrant red hue**. It’s water-soluble and commonly found in **cleansers, shampoos, body washes, and some skincare products**—especially those designed to be rinsed off.

### 🎨 **Key Features**:
– **Function**: Cosmetic colorant (adds red color to formulations)
– **Solubility**: Water-soluble
– **Origin**: Petroleum-derived synthetic dye
– **CAS Number**: 4548-53-2

### 🧴 **Where It’s Used**:
– **Face washes & body cleansers**
– **Shampoos & hair gels**
– **Nail polishes & temporary hair colorants**
– **Not recommended** for **lip or eye area** products due to regulatory restrictions

### 🛡️ **Regulatory & Safety Notes**:
– **Approved in the U.S. and EU** for **external use only** (not for lips or eyes)
– **Maximum concentration** in cosmetics: typically **≤2%**
– Must meet **strict purity standards** to avoid contamination with heavy metals
– Considered **safe for rinse-off products**, but may cause staining if used in leave-on formulas