Hydrated skin is healthy skin. But there’s more to hydration than applying moisturizer. Here’s the science you need to know.
Understanding the Skin Barrier
The stratum corneum (outer layer of the skin) acts as a shield against water loss and environmental stressors. When it’s compromised, you may experience flakiness, sensitivity, and breakouts.
Key Hydrating Ingredients
- Hyaluronic Acid: Attracts and holds moisture.
- Glycerin: A humectant that draws water into the skin.
- Ceramides: Lipids that rebuild and maintain the skin barrier.
Internal Hydration
Drinking water supports overall hydration, but topical hydration is necessary to directly impact your skin. Aim for both approaches for the best results.
Humectants vs. Occlusives
Occlusives: Form a barrier to prevent water loss (shea butter, petrolatum, squalane). Layering both ensures deep and lasting hydration.
Humectants: Pull moisture into the skin (HA, glycerin).