Ingredient Spotlight: Why Hyaluronic Acid Deserves a Place in Your Routine

Few ingredients have earned their hype like hyaluronic acid. But "contains HA" tells you almost nothing — how it's used decides whether you get plump, dewy skin or, surprisingly, more dryness. Here's the science, minus the jargon.

What it actually is

Hyaluronic acid is a sugar molecule your skin already makes, capable of binding up to 1,000 times its weight in water. Levels drop with age and sun exposure — which is why skin slowly loses that bouncy, cushioned quality.

Molecular weight is everything

Large HA molecules sit on the surface, smoothing and instantly hydrating. Medium weights hydrate the upper layers. Ultra-low weights travel deeper, plumping fine lines from within and signalling repair. A formula using a single weight gives you one effect; our Hyaluronic Dew Moisturizer layers four weights so hydration lands at every depth.

The mistake almost everyone makes

HA is a humectant — it pulls water from wherever it can. Applied to bone-dry skin in dry air, it can pull moisture out of your skin. The fix is simple: always apply HA to damp skin, and always seal it with a moisturiser containing ceramides or squalane.

Who is it for?

Everyone. Oily skin gets weightless hydration without grease; dry skin gets a drink; sensitive skin gets one of the least reactive actives in all of skincare. It pairs happily with vitamin C, retinal and exfoliating acids.

The Naisha way

You'll find quadruple-weight HA in our Hyaluronic Dew Moisturizer, supporting roles in the Vitamin C Radiance Serum and SPF 50 gel, and hydrating spheres in our lip couture — because hydration is the canvas every other ingredient paints on.