Natural Moisturising Factor: The Amino Acid System Built Into Your Protocol

Read the ingredient list of the Daily Devotion Cleanser, Biocinamide Serum and Brightening Serum side by side and a pattern appears. Glycine, alanine, serine, proline, threonine, arginine, Sodium PCA, Sodium Lactate. The same small group of ingredients turns up in three different steps, at the end of the list, where nobody looks. It is not an accident. It is a deliberate system, and it has a name: natural moisturising factor.

What Natural Moisturising Factor Is

Natural moisturising factor, usually shortened to NMF, is a mixture of small, water-soluble molecules found inside the cells of the outermost skin layer. It is made when the skin breaks down a protein called filaggrin as cells move towards the surface. The main components are amino acids, pyrrolidone carboxylic acid (PCA), lactate and urea.

Its job is simple. These molecules attract and hold water inside the surface cells, so the skin stays flexible and the barrier keeps working as it should. Water alone does not do this. Without something to bind it, water leaves the surface within minutes. NMF is the binding system.

Why Skin Loses It

NMF is water-soluble, which is the weakness in the design. Anything that repeatedly strips or dissolves surface material can deplete it: harsh surfactants in cleansers, very low humidity, and a barrier that is already compromised. Production also depends on the filaggrin pathway, which is one reason skin that is slow to recover tends to feel tight and rough even when it is being moisturised.

Queensland adds its own load. Air-conditioning moves skin between cool, dry indoor air and humid outdoor air several times a day, and strong UV exposure adds to the demand on the barrier. The surface layer is working harder to hold the water it has.

Where It Appears in the Protocol

Dr Alison Jamieson formulates the NMF components into the steps that contact skin most often, rather than concentrating them in a single product.

Step 1, Daily Devotion Cleanser (AM and PM). The cleanser contains Sodium PCA, PCA, Sodium Lactate and a broad amino acid profile. A cleanser is the step most likely to remove NMF, so it is the logical place to put some back. Sodium PCA is also a humectant with a higher water-holding capacity than glycerin.

Step 2, Biocinamide Serum (AM and PM). The same group appears again, alongside niacinamide and Lactococcus Ferment Lysate, a postbiotic that is formulated to support the skin's own filaggrin expression. One part of the system supplies NMF components directly. The other supports the pathway that makes them.

Step 3 of the PM Protocol, Brightening Serum. This serum contains exfoliating acids, which is why it needs support. Sodium PCA, PCA, Sodium Lactate and the amino acid profile sit in the same formula to help keep the surface supplied with water-binding molecules while the acids work.

Three steps, one repeated principle. The cleanser avoids stripping, the barrier serum supports the pathway, and the corrective serum is buffered.

Why Amino Acids Rather Than Water Alone

A single humectant draws water. A system that resembles the skin's own composition does something more useful: it supplies the same kinds of molecules the surface layer would normally generate for itself. That is the logic behind including a full amino acid profile rather than relying on one moisturising ingredient.

It is a supporting role. Topical NMF components support the appearance of well-hydrated skin and help the surface hold water. They do not replace the skin's own filaggrin pathway, which is why the Protocol pairs them with barrier support rather than treating them as a standalone fix.

Common Questions

Is natural moisturising factor the same as hyaluronic acid?
No. Hyaluronic acid sits mainly in the deeper layers and holds water there. NMF sits inside the outermost cells and is what keeps the surface itself hydrated. Aliangé formulations contain both, and they do different jobs. Our earlier article on dehydrated versus dry skin explains why the distinction matters when choosing what to use.

Why do my cleanser and serum list the same amino acids?
Because the same molecules are useful at each step. The cleanser is formulated to avoid stripping, and the serums replace surface components that daily life and the Queensland climate tend to deplete.

Will this make oily skin greasy?
Not by design. The NMF components are water-soluble and are not oils. Oily skin can still be dehydrated, and a well-hydrated surface supports how the barrier regulates itself.

NMF is not the ingredient anyone builds a campaign around, which is exactly why it is worth understanding. If your skin feels tight after cleansing, start with the Daily Devotion Cleanser and Biocinamide Serum, then see how they sit within the full Protocol. Where the Brightening Serum is part of the PM Protocol, its role is explained here.