Glycerin
Also Known As: Glycerol
Ingredient Type: Humectant
Highlights
- Naturally present in healthy skin
- Helps attract and retain moisture
- Helps keep skin soft and supple
The Science
Glycerin is one of the most widely used and extensively studied moisturizing ingredients in skincare. Its proven ability to improve skin hydration and support the skin barrier has made it a cornerstone of modern formulations for decades. Even with the introduction of countless newer humectants, glycerin continues to set the standard for effective skin hydration. Its effectiveness, versatility, and long history of use have made it one of the most trusted ingredients in skincare.
As a humectant, glycerin helps attract and retain water in the skin, increasing hydration and helping maintain a healthy moisture balance. It is also naturally present in healthy skin as part of the skin's natural moisturizing system, making it highly compatible with the skin. By increasing water content in the outermost layer of the skin, glycerin helps support the skin barrier while keeping skin feeling soft, smooth, and supple.
Common Questions
Can pure glycerin be applied directly to the skin?
Pure glycerin can be applied directly to the skin, but it is generally not recommended. On its own, glycerin has a thick, sticky feel that many people find unpleasant. It is typically combined with water and other skincare ingredients to improve its texture, spreadability, and overall performance while still providing excellent hydration.
Where does glycerin come from?
Glycerin is a naturally occurring sugar alcohol found in fats and oils. It can be obtained from both plant and animal sources, although most glycerin used in modern skincare is plant-derived, commonly sourced from oils such as soybean, coconut, or palm.
Where You'll Find It
You'll find glycerin in Dermaphilic's Daily Hydration Serum.
Last Updated: July 15, 2026
References
Fluhr, J. W., Darlenski, R., & Surber, C. (2008). Glycerol and the skin: Holistic approach to its origin and functions. British Journal of Dermatology, 159(1), 23–34. https://doi.org/10.1111/j.1365-2133.2008.08643.x
Lodén, M. (2003). Role of topical emollients and moisturizers in the treatment of dry skin barrier disorders. American Journal of Clinical Dermatology, 4(11), 771–788. https://doi.org/10.2165/00128071-200304110-00005