Eutectic Hyaluronic Acid: scientifically validated protection for skin longevity
Most hyaluronic acid innovation focuses on getting HA into the skin. Our latest independent study points to a different challenge: what happens to HA once it gets there. The result: 4× greater preservation under enzymatic stress.
Written by
Maria Fernanda Silva, PhD
Hyaluronic acid is constantly disappearing
As skin ages, and especially with sun exposure, the natural hyaluronic acid in our skin breaks down faster.
One reason is the increased activity of enzymes called hyaluronidases, which degrade hyaluronic acid.
This means that conventional topical hyaluronic acid, when applied in its free form, may not remain active for long enough because it can be rapidly broken down by these enzymes.
A simple way to think about it is to imagine filling a bucket with water.
Adding more water helps.
But if the bucket has a hole, the water keeps escaping.
Protecting hyaluronic acid from enzymatic degradation is like slowing that leak.
Instead of focusing only on delivering more HA, what if the eutectic structure could help preserve it once it's already in the skin?
That is the question we tested.
Scientific validation
Objective
Evaluate whether a eutectic structure can protect hyaluronic acid from enzymatic degradation.
Conducted by
Kosmoscience®
Model
Ex vivo human skin
Protocol
The skin was treated with free HA or Eutectic HA and then exposed to hyaluronidase.
Results
Eutectic HA was 4× more effective than free HA at preserving HA levels under enzymatic stress.
It retained ~70% of the skin’s natural HA levels after hyaluronidase exposure, while free HA did not show statistically significant protection under the same experimental conditions.
Why this matters for cosmetics
In cosmetics, a great active is no longer enough.
Performance also depends on how well that compound withstands the biological environment of the skin.
As skin longevity becomes the industry's next frontier, preserving activity over time will become a key differentiator for cosmetic innovation.
Beyond hyaluronic acid
This study demonstrates how eutectic structuring can introduce functional properties that free molecules do not naturally exhibit.
That principle opens the door to applying eutectic systems across a wide range of cosmetic actives, creating formulations that go beyond conventional performance.
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