Facial oils moisturize by sealing in existing moisture on the skin, rather than adding water to it.
The Science Behind Oil's Moisturizing Action
Oils act like a barrier, similar to vitamin-rich plastic wrap, preventing water from evaporating from the skin's surface. This process of moisture retention is crucial for keeping skin hydrated and supple.
| Feature | Moisturizers | Oils |
|---|---|---|
| Primary Action | Provide Instant hydration | Retain moisture |
| Mechanism | Add water to the skin | Seal the skin's surface, preventing water loss |
| Benefits | Hydrates immediately | Protects, seals, and nourishes skin |
Key Points About How Oils Moisturize:
- Not Hydrators: Oils do not introduce new water content to the skin.
- Moisture Retention: They prevent the natural moisture of the skin from escaping.
- Barrier Function: They create a protective layer on the skin's surface.
- Nourishment: They often contain beneficial nutrients and fatty acids that nourish the skin.
Practical Implications
Here are some things to consider about oils in your skincare routine:
- Best Used After Moisturizer: Apply facial oil after your water-based moisturizer for optimal results. This allows the moisturizer to hydrate the skin and the oil to seal in that hydration.
- Types of Oils: Different oils offer varied benefits. Consider your skin type and needs when choosing a facial oil (e.g., argan oil, rosehip oil, jojoba oil).
- Amount Matters: Use only a few drops of oil, as too much can feel heavy on the skin.
- Not a Substitute: Oils should not be used as a sole moisturizer if your skin is dehydrated.
In Summary
Oils help maintain skin hydration by preventing water loss. They don't add moisture but play a vital role in keeping your skin moisturized by sealing in hydration provided by other products.
