Glycerin
Glycerin — a small, naturally occurring humectant that attracts water and helps hold it within the upper layers of skin. It is one of the most studied and widely used moisturizing ingredients, valued for supporting the skin barrier and improving softness and suppleness.
Key points
- It is a humectant that draws water from the environment and deeper skin layers into the outer layers, helping skin feel hydrated.
- It is found naturally in the skin as part of its own moisturizing system and is also produced synthetically or from plant oils.
- Research links it to a stronger, more resilient skin barrier and reduced water loss when used regularly.
- It is generally non-irritating and suitable for most skin types, including sensitive and dry skin.
Frequently asked
Can glycerin be used on oily or acne-prone skin?
Yes; glycerin is lightweight, non-comedogenic, and hydrates without heaviness, making it suitable across skin types including oily and acne-prone skin.
Does glycerin need to be paired with other ingredients?
It works well on its own, but pairing it with occlusives or emollients helps seal in the moisture it attracts, especially in very dry conditions.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
