Hyaluronic acid (HA) is a naturally occurring substance in your body, primarily found in skin, eyes, and joints. It’s a humectant, meaning it attracts and holds water molecules. This remarkable ability allows HA to plump up the skin, reducing the appearance of fine lines and wrinkles.
How Much Water Can It Hold?
One gram of HA can hold up to six liters of water! This impressive water-binding capacity is what makes it such a powerful moisturizer. It creates a hydrating film on the skin’s surface, preventing moisture loss and keeping your complexion supple.
Different Molecular Weights, Different Benefits
Hyaluronic acid comes in various molecular weights. Lower molecular weight HA penetrates deeper into the skin, targeting wrinkles and improving skin elasticity. Higher molecular weight HA forms a protective barrier on the skin’s surface, preventing water evaporation and providing immediate hydration.
Hyaluronic Acid in Moisturizers: A Closer Look
| Low (50-100 kDa) | Improved skin elasticity, wrinkle reduction | Deeper layers of the dermis |
| Medium (100-500 kDa) | Hydration, smoothing, improved skin texture | Upper layers of the dermis |
| High (>500 kDa) | Surface hydration, moisture barrier protection | Epidermis (surface layer) |
Choosing the Right Product
Look for moisturizers that specify the molecular weight of HA used. Consider your skin type and concerns when making your selection. A blend of different molecular weights often delivers the best overall results.
