🔬 How It Actually Works
An ester of polyethylene glycol and stearic acid. It is a workhorse emulsifier used to create smooth, elegant textures in lotions.
💖 Why Your Skin Loves It
Keeps formulas stable and provides a soft, conditioning feel to the skin.
💡 Pro Tip
Often paired with Glyceryl Stearate.
🧪 The Mixology Guide
Skincare is chemistry. Here is how PEG-40 Stearate interacts with other active ingredients on your shelf.
✅ Best Friends (Synergy)
No documented synergies yet.
⚠️ Arch Enemies (Conflict)
Plays well with most ingredients.