🎯 At a Glance
🔬 How It Actually Works
An ester of stearyl alcohol and heptanoic acid. It is a soft wax at room temperature that melts instantly upon contact with the skin, providing a rich, highly protective, water-resistant barrier.
💖 Why your skin loves it
Prevents transepidermal water loss, deeply conditions, and protects against windburn.
💡 Pro Tip
Often used in premium lip balms and heavy winter creams.
⚖️ Myth vs. Fact
The Myth
It suffocates the skin.
The Science
It forms a highly breathable, protective lipid matrix, not an impermeable plastic film.