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HAILEY SARA

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What Is Hyaluronic Acid and How Does It Work?

May 9, 2025

Hi Beauties

Melbourne-born and London-based, I’m a beauty and fashion educator with over a decade in the industry. I created Beauty Edition to share what I’ve learned—and what I’m still figuring out. Expect skincare that makes sense, timeless style, and a slower, more intentional way of living well.

MEET hailey

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Hyaluronic Acid has become one of the most talked-about ingredients in skincare — but what does it actually do? If you’re building a routine focused on hydration, glow, or barrier repair, this is one ingredient you’ll want to understand properly. Let’s break it down.

What Is Hyaluronic Acid?

Despite the intimidating name, hyaluronic acid (HA) is actually a sugar molecule naturally found in your body — particularly in your skin, eyes, and connective tissues. Its main job? Retaining moisture.

💧 Did you know?
Hyaluronic acid can hold up to 1,000 times its weight in water.
That’s what gives your skin that plump, dewy appearance.

What Are the Benefits of Hyaluronic Acid in Skincare?

Hyaluronic acid is popular in serums, moisturizers, and masks for good reason. Here’s what it does:

  • Deeply hydrates the skin
  • Improves skin elasticity and texture
  • Supports a healthy skin barrier
  • Reduces the appearance of fine lines and dryness

Whether you have oily, dry, or combination skin — HA is universally friendly and non-comedogenic (meaning it won’t clog your pores).

How to Use It in Your Routine

To get the most out of hyaluronic acid, follow these tips:

  • Apply it to damp skin. HA draws moisture from the air — or your skin — so applying it on damp skin helps it pull in hydration from the outside rather than pulling moisture out from within.
  • Follow with a moisturizer. Always “seal it in” with a cream or facial oil to prevent evaporation.
  • Use it morning or night. It’s gentle enough to be used twice a day, every day.

Tip: If your skin feels tight after applying HA, you’re likely missing the moisturizing step.

My Top Hyaluronic Acid Picks

If you’re ready to try hyaluronic acid, these are three beginner-friendly options I trust and recommend:

The Inkey List Hyaluronic Acid Serum
Lightweight, fast-absorbing, and budget-friendly — ideal for layering under other serums or makeup.
→ Shop The Inkey List at Cult Beauty

Dermalogica Circular Hydration Serum
A pro-grade formula that delivers long-lasting hydration with added amino acids and polyglutamic acid for barrier support.
→ Explore Dermalogica’s Pro Hydration Range

Laneige Water Bank Blue Hyaluronic Serum
Luxuriously hydrating with a silky texture — perfect for dry or dehydrated skin types, especially in cooler climates.
→ Try Laneige’s Water Bank Serum


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