HYDROXYACETOPHENONE

**Hydroxyacetophenone** is a **synthetic antioxidant and skin-conditioning agent** used in cosmetics to enhance **preservative systems, soothe skin, and neutralize free radicals**. It’s a **phenolic antioxidant**, meaning it can counteract multiple types of oxidative stress, making it valuable in **anti-aging and hydration-focused formulations**.

### Key Benefits:
– **Antioxidant Protection**: Shields skin from environmental damage by neutralizing free radicals.
– **Preservative Booster**: Enhances the efficacy of preservatives like **phenoxyethanol**, allowing for lower concentrations while maintaining effectiveness.
– **Soothing Properties**: Helps reduce irritation, making it beneficial for sensitive skin.
– **Stable Across pH Ranges**: Works well in various emulsions, increasing formulation flexibility.

### Where You’ll Find It:
Hydroxyacetophenone is commonly used in:
– **Anti-aging serums & moisturizers**
– **Hydrating creams & lotions**
– **Cleansers & toners**
– **Sunscreens & antioxidant-rich formulations**

### Safety & Compatibility:
– **Considered safe** for cosmetic use, with studies indicating **low irritation and sensitization risks**.
– Typically used at **0.00068%–5%**, with **0.5%** being ideal for preservative enhancement.
– Works well with **other antioxidants** like **Vitamin E (Tocopherol) and Resveratrol**.