Hyaluronic acid is the skincare equivalent of a big drink of water for your face, but what does it actually do?

October 1, 2019

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Precisely why this hype queen is sensational for thirsty skin.

When did we get so damn skincare savvy? Gone are the days where any old cleanser and moisturizer would do. Now we want ingredients, and good ones at that, to plump, hydrate, brighten and erase our skincare woes in one hit.

We've long been devoted to retinol's superstar anti-ageing abilities. Vitamin C has cemented it's status as the ultimate skin brightener and nothing stops acne in its tracks quite like salicylic acid.

And, having exploded onto the skincare scene, infiltrating our moisturizers, serums and eye creams over the last few years, hyaluronic acid has joined the rank of holy grail ingredients.

So why are we so obsessed with it? Here's everything you need to know...

What is hyaluronic acid?

Pronounced hiya-loo-ron-nick, hyaluronic acid is a carbohydrate molecule and a natural component of skin. According to Consultant Dermatologist, Dr. Justine Kluk, it is the KEY molecule involved in skin moisture, with a "unique capacity to bind and retain water molecules".

"It has been estimated that hyaluronic acid (HA) can hold up to one thousand times its own weight in water molecules", she says. Essentially, the complexion champion has an unrivalled ability to hydrate our skin.

It's worth noting that although hyaluronic acid is a natural component of skin, the ingredient you find in your serums and products is a synthetic version.

What does it do to the skin?

As we age, our natural hyaluronic acid levels deplete, and that loss of moisture means drier, rougher and lined skin.

By applying the synthetic ingredient topically, "its restorative abilities help to boost skin's moisture content, soothe and prevent moisture loss", says Kate Bancroft, Nurse and Founder of Face the Future's CQC-regulated Advanced Skin Clinic & online shop.

"When you apply a hyaluronic acid serum to your skin, it acts like a sponge by attracting moisture to boost hydration on the surface of skin. The moisture that hyaluronic acid attracts comes from your external environment, so it absorbs moisture from the air around you to leave skin plumped and hydrated."

How to use hyaluronic acid...

Like most skincare products, you're going to see the best results if you use hyaluronic acid regularly.

Kate recommends both morning and night, followed by a moisturizer to keep everything 'locked in'. "Hyaluronic acid will draw moisture from the deeper layers of skin, bringing it to the surface and potentially exacerbating dry skin symptoms, so it's imperative to follow with a moisturizer."

Which skin type suits hyaluronic acid?

Most skin types will benefit from hyaluronic acid's moisture-boosting properties, which is why it's included in a lot of skincare. But Kate says dry and dehydrated skin types will notice the benefits most.

Why is it called an acid if it doesn't exfoliate the skin?

Don't let the name fool you. Even though it's called an 'acid', HA is the complete opposite of glycolic, lactic and salicylic acids, and won't exfoliate dead skin cells. The name simply derives from the enzyme that synthesises HA, called 'hyaluronic acid synthase'.

What should I be looking for on the label?

Whether you choose to go for 'pure' hyaluronic acid or a serum, Kate says to opt for one that contains a 'variation of high and low molecular weight hyaluronic acids.'

"The varying molecular weights determine how far the HA will penetrate skin. The smaller the molecule, the further the serum can penetrate skin, for hydration throughout skin's layers and a visibly plumped-up effect."

When you're looking at an ingredients list, she also says to keep an eye out for Sodium Hyaluronate.

"Sodium hyaluronate is a salt derivative of hyaluronic acid with all the same benefits, except it is more easily absorbed. Look for a product containing both sodium hyaluronate and hyaluronic acid for the optimum hydration boost."



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