Hyaluronic Acid is widely used in skincare products due to its incredible ability to hydrate the skin and reveal a plumper, smoother appearance. 

A decreased amount of Hyaluronic Acid can lead to not just dehydration, but a lower elasticity of the skin - leading to the formation of fine lines. By maintaining moisture in the skin, using Hyaluronic Acid can help promote a youthful look. 

So, what does Hyaluronic Acid look like? 

Hyaluronic Acid (HA) is a naturally occurring polysaccharide found in the human body, particularly in connective tissues, skin and eyes. It is known for its unique ability to retain water, which makes it an essential molecule for maintaining moisture and lubrication in tissues.

Hyaluronic Acid is considered a humectant, meaning it attracts and binds to water molecules from the deeper layers of your skin and the air. The amount of HA in the skin is equivalent to 50% or more of the total amount of Hyaluronic Acid in the body which shows just how important this molecule is for not just our skin but bodily functions overall!

What is molecular weight in terms of Hyaluronic Acid?

Molecular weight correlates to the size of the HA molecule being used in a skincare formula and is predetermined by the source of that particular molecule (whether it's animal based or even man made!). The greater the weight, the larger the molecule. 

The skin has quite a strict entry policy and will only allow an ingredient's molecules of a certain size to pass through the skin barrier and then travel into the cells to make those changes we like to see in the skin. For example, collagen is a molecule that is far too big to pass through the skin barrier and if not adjusted in the formula properly will just sit on the surface of the skin rather than be absorbed. 

The molecular weight of esmi's Hyaluronic Hydrating Serum

esmi's Hyaluronic Hydrating Serum contains a Cube3 broad-spectrum hyaluronic acid. This features a cubed triple action technology, and is based on a full spectrum of molecule lengths - a combination of small and large molecular weight.

This means it acts harmoniously on a range of molecules just like when hyaluronic acid is naturally found in your body. A broad spectrum Hyaluronic Acid is ideal to keep the skin's moisture content high for an increased period of time. 

After 24 hours, our Cube3 Hyaluronic Acid demonstrates greater performance versus both low (55% more efficient) or high (125% more efficient) molecular weight Hyaluronic Acid. Our Cube3 can also show an enhancement of the penetration of other active ingredients too, both water and oil soluble! 

Being a broad spectrum ingredient, this has also been proven to slow down water loss from the skin barrier to 25% in 2 hours.