Hyaluronic acid is everywhere—but not all of it is working in your skin’s best interest.

While hyaluronic acid (HA) is beloved for its ability to hydrate and plump, most people don’t realize it comes in different molecular weights—and the kind you use can make or break your skin barrier.

Let’s dive into why high molecular weight hyaluronic acid (HMW-HA) is the gold standard, why Jena formulated with it from day 1, and why we use it in our cult-favorite formula holi (water) and brand new holi (water) crème.

What’s the Difference Between High and Low Molecular Weight HA?

Not all HA is created equal. The molecular size determines how it interacts with your skin.

• High Molecular Weight HA (HMW-HA) stays on the skin’s surface, forming a breathable barrier that locks in moisture and protects against environmental aggressors. It instantly creates a visible bouncy effect to the skin’s surface. 
  
  
• Low Molecular Weight HA (LMW-HA) penetrates deeper—but it can pull water out of your skin and bring it to the surface, where it evaporates. This can lead to tightness, dryness, and long-term barrier disruption.

The Moisture Trap You Didn’t See Coming

Here’s the skincare paradox: LMW-HA can feel amazing at first, but in dry environments, it can actually dehydrate your skin. It acts like a moisture magnet—drawing hydration from the deeper layers of your dermis and releasing it into the air.

Over time, this compromises the skin barrier and creates a cycle of chronic dryness.

Why We Choose High Molecular Weight HA

At Agent Nateur, we choose high molecular weight HA for one reason: it works with your skin—not against it.

It helps:

• Reinforce the skin’s natural moisture barrier
• Maintain long-term hydration
• Reduce inflammation and visible redness
• Leave skin plump, bouncy, and protected

The Result? Hydration That Lasts—and Glows.

With consistent use, high molecular weight HA delivers:

✔️ Softer, more supple skin

✔️ Strengthened barrier function

✔️ Less inflammation and irritation

✔️ Long-term hydration without moisture loss

It’s skincare that supports your skin today and tomorrow.

Discover our new moisturizer:

holi (water) crème is powered by high molecular weight hyaluronic acid—plus clinical-grade actives like THD Ascorbate (Vitamin C), pitaya extract, and niacinamide to hydrate, brighten, and calm.

It’s your daily veil of lightweight moisture, designed to layer effortlessly and leave a satin-dewy glow.