In recent skincare trends, you may have noticed the abbreviation NMF being used frequently. But what does NMF mean? Is there a reason for all the attention around it, or is it simply another skincare marketing term?
NMF stands for Natural Moisturizing Factor. In moisturizers, an NMF complex generally refers to a blend of humectant and water-binding ingredients that can help improve water retention in the stratum corneum, the outermost layer of the skin.
But isn't that what every moisturizer is supposed to do? What makes an NMF complex different, and what ingredients does it contain? In this guide, we'll explore what NMF is, how it works and why NMF-related ingredients are used in moisturizers.
What Is NMF?
NMF, or Natural Moisturizing Factor, is a mixture of water-soluble compounds naturally present in the outermost layer of the skin. It acts as part of the skin's natural water-binding system.
NMF consists of multiple water-attracting ingredients that are primarily found within the corneocytes of the stratum corneum.
As the stratum corneum matures, filaggrin, a protein found in the upper layers of the epidermis, is broken down into amino acids and their derivatives that contribute to NMF. These components help the skin attract and retain water, supporting a hydrated and flexible outer skin layer.
Research published on PubMed describes the relationship between filaggrin breakdown products and the components of Natural Moisturizing Factor.
What Is NMF Made Of?
NMF is a combination of multiple water-soluble, water-binding components that help the skin retain moisture. Some of the main components include:
| NMF Component | Role |
|---|---|
| Free amino acids | Help bind water |
| PCA (Pyrrolidone Carboxylic Acid) | Important water-binding component |
| Lactate | Helps maintain hydration |
| Urea / Urocanic acid | Humectant and water-binding molecules |
| Sugars | Contribute to water retention |
| Electrolytes / Mineral ions | Support the water-binding environment |
Source: National Library of Medicine
Free amino acids and their derivatives make up a significant part of NMF, along with PCA, lactate, urea and other small molecules. No single component works alone; it is the combination that contributes to the skin's natural hydration system.
How Does NMF Work in the Skin?
Step 1: NMF Attracts and Holds Water
NMF components are stored within the corneocytes of the stratum corneum. Many of these components are hygroscopic, meaning they can interact with and retain water.
Step 2: NMF Helps Keep Skin Flexible
NMF binds with water, helping the corneocytes retain moisture. This supports the flexibility and physical properties of the outer skin layer and can help prevent the skin from becoming excessively dry or flaky.
Step 3: NMF Supports the Skin Barrier
A well-hydrated stratum corneum supports the normal functioning of the skin's outer layer and controlled shedding of old corneocytes, or dead skin cells.
Where Does NMF Come From?
NMF is closely linked to a protein called filaggrin. As skin cells mature and corneocytes flatten to become part of the stratum corneum, filaggrin is broken down into smaller components. A significant portion of the skin's NMF is derived from this breakdown process.
Scientific research supports the relationship between filaggrin breakdown and the formation of NMF components.
Read more about filaggrin and Natural Moisturizing Factor on PubMed Central.
What Happens When NMF Levels Are Low?
When NMF levels are reduced, the skin can become less effective at retaining water within the outer layer. This can contribute to dryness, rougher texture, visible flaking and reduced flexibility.
Several factors can influence NMF levels and skin hydration, including frequent or harsh cleansing, dry air, the natural ageing process and environmental stress.
However, NMF is only one part of the skin's hydration system. Other factors also contribute to how dry, hydrated or reactive the skin feels.
What Does "NMF" in a Moisturizer Actually Mean?
This is where product terminology can sometimes become confusing. A moisturizer labelled with "NMF" does not necessarily contain the exact system that your skin naturally produces. Native NMF and NMF-inspired ingredients are related concepts, but they are not identical.
Native NMF
Native NMF refers to the natural water-binding system found within the stratum corneum. It is produced as part of the skin's natural processes, including the breakdown of filaggrin.
NMF-Inspired Ingredients
NMF-inspired ingredients are commonly used in skincare formulations to mimic some of the water-binding functions associated with natural NMF. These can include amino acids, PCA, urea and other humectants.
Products containing these ingredients can contribute to skin hydration. However, adding NMF-related ingredients to a moisturizer is not the same as literally rebuilding the skin's own natural NMF system.
Which NMF Ingredients Should You Look for in a Moisturizer?
Some commonly used ingredients associated with NMF-inspired moisturizing systems include:
- Amino acids
- Sodium PCA
- Urea
- Sodium lactate
- Glycerin
One important distinction is that glycerin and hyaluronic acid are humectants, but they are not native NMF components in the strict sense. They can perform similar water-attracting functions when used in skincare formulations.
Why Is NMF Useful in a Moisturizer?
Moisturizers primarily focus on hydration and supporting the skin barrier, which aligns closely with the functions of NMF-related ingredients.
NMF-inspired formulations can support skin hydration and help reduce the feeling of tightness and dryness. Because many NMF-related ingredients are water-soluble humectants, they can also be incorporated into lightweight, non-greasy formulations.
Research published in the National Library of Medicine discusses the role of NMF-related components in maintaining skin hydration.
Deconstruct Oil-Free Moisturizer With NMF Complex
The Deconstruct Oil-Free Moisturizer with NMF Complex is formulated with 3% NMF Complex and 0.2% Panthenol to support hydration while maintaining a lightweight texture.
- Formulated with 3% NMF Complex and 0.2% Panthenol
- NMF Complex contains amino acids and other hydrating substances that help retain hydration in the outer skin layer
- Panthenol, a form of Vitamin B5, is a humectant that supports skin hydration
- Oil-free and lightweight water-based texture
- Designed to leave skin feeling hydrated without a greasy finish
- Fragrance-free and non-comedogenic formulation
- Gentle and soothing formulation
- Dermatologically tested
Best Suitable For
- Normal skin
- Oily skin
- Combination skin
- Acne-prone skin
- Anyone looking for a lightweight hydrating moisturizer
Frequently Asked Questions
What Does NMF Stand for in Skincare?
NMF stands for Natural Moisturizing Factor. It refers to a mixture of naturally occurring water-binding substances found in the outermost layer of the skin.
Is NMF a Single Ingredient?
No. NMF isn't a single ingredient. It is a mixture of several naturally occurring molecules, including amino acids, PCA, lactate, urea and electrolytes, which work together to support hydration in the skin's outer layer.
What Is NMF Made Of?
NMF consists primarily of free amino acids and their derivatives, along with components such as PCA, urea, lactate, sugars and electrolytes. These water-binding substances help the outer layer of the skin retain moisture.
Why Do Moisturizers Have NMF?
Moisturizers are designed to provide hydration and support the skin barrier. NMF-related ingredients are often humectants, which attract and retain water and can be incorporated into lightweight, oil-free moisturizing formulations.
Is NMF Good for Dry Skin?
Yes. NMF-related ingredients can help support hydration and reduce the feeling of dryness. However, very dry skin may benefit from a combination of humectants, emollients and barrier-supportive ingredients rather than relying on one type of ingredient alone.
Final Thoughts
NMF isn't simply a marketing term. Natural Moisturizing Factor is a scientifically recognised part of the skin's natural hydration system. It consists of water-binding substances such as free amino acids and their derivatives, PCA, lactate, urea, sugars and electrolytes.
These substances help attract and retain water within the corneocytes, supporting a hydrated and flexible outer skin layer.
NMF-inspired ingredients in moisturizers can support these water-binding functions. The Deconstruct Oil-Free Moisturizer with NMF Complex contains 3% NMF Complex and 0.2% Panthenol in a lightweight, water-based, non-comedogenic and fragrance-free formulation designed to provide hydration without a greasy feel.
