Put your hand up if you've never heard of hyaluronic acid! We now all know this molecule which has become a "must-have" for skin beauty and is used in cosmetic formulations, supplements and even in medicine.

But what exactly is it?

Hyaluronic acid is the natural substance found in our body that's responsible for hydrating the skin.

We can compare this extraordinary molecule to a sponge which, thanks to its ability to retain water, keeps the tissues compact and uniform.

Hyaluronic acid can actually retain up to a thousand times its weight in water!

What happens when we get older

Young skin is particularly rich in hyaluronic acid and is therefore typically elastic and resilient. From the age of 25 onwards, however, its production decreases exponentially. Skin ageing is therefore caused by a profound loss of hydration, and consequently volume, and manifests itself through the appearance of small cracks which then turn into the first wrinkles.

If contained as an active ingredient in a serum or face cream, hyaluronic acid guarantees the skin's regeneration process and prevents the signs of ageing.

Hyaluronic acid might seem straightforward at first...

But be careful, there isn't just one type of hyaluronic acid! It's a complex molecule, and the size of its chains affects its efficacy and anti-ageing properties. Depending on the size and weight of the molecule, hyaluronic acid is differentiated as:

1. High molecular weight: stays on the surface of the epidermis, where it creates an invisible film that limits water evaporation.

2. Medium molecular weight: provides the skin with all the water it needs to remain compact and elastic.

3. Low molecular weight: penetrates deeply and promotes the physiological production of Collagen.

So when buying a hyaluronic acid-based product, it's good to pay attention not only to the concentration of hyaluronic acid, but also to what types of molecular weight are present.

Having clarified this, let's finally discover all the benefits of hyaluronic acid together.

The 5 benefits of hyaluronic acid

1. Firmer and younger skin
   As we age, the skin on our faces becomes less elastic and resilient. Products based on pure hyaluronic acid make it more compact and firm, and slow down the ageing process.

2. Stimulates the production of collagen
   Low molecular weight hyaluronic acid penetrates deeply and improves the biomechanical properties of the skin. Some in vitro studies show that hyaluronic acid stimulates collagen production by 21%.

3. Delays and reduces the depth of wrinkles
   Wrinkles are inevitable as we age. However, daily use of a product with a high concentration of hyaluronic acid prevents the appearance of wrinkles and has a filling effect on existing ones.

4. Hydrates and protects against irritation
   High molecular weight hyaluronic acid creates a non-occlusive hydration film that stops water evaporating from the skin and protects it from external harm, preventing irritation and redness.

5. Completely natural and vegan
   Normally, most hyaluronic acid used in cosmetics is produced with a biotechnological process from wheat, glucose and lactobacilli.

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