🎯 At a Glance
🔬 How It Actually Works
A synthetic polyethylene glycol ether of stearyl alcohol. It is a classic, highly reliable emulsifier used to keep oil and water permanently bound together.
💖 Why your skin loves it
Ensures creams do not split or separate over time.
💡 Pro Tip
Usually paired with Steareth-21 to create a perfectly balanced emulsion.
⚖️ Myth vs. Fact
The Myth
It thins the skin over time.
The Science
It acts purely functionally to keep the product mixed; it does not alter living tissue.
