What Is Hyaluronic Acid? Benefits & How It Works

What is Hyaluronic Acid?

Hyaluronic acid is a naturally occurring molecule already found throughout the body, including in skin, joints, and eyes, where its main job is holding onto water. It is one of the most well-known and well-studied hydrating ingredients in skincare. Hyaluronic acid is included in INTOIT's Lip Restore SPF Lip Balm, where it helps keep the thin, delicate skin of the lips hydrated. It is not currently used in any of INTOIT's other products.

Source

Found in	Naturally occurring glycosaminoglycan (a type of sugar molecule) found throughout skin and the body
Origin	Naturally produced by the body; used in skincare in a synthesized, cosmetic-grade form

Top features and benefits

Helps skin hold onto moisture	Can hold significantly more water than its own weight	Suitable for dry or dehydrated skin, including the lips
Generally well tolerated, including on sensitive skin	Works well alongside barrier-supporting ingredients like ceramides	Naturally present in the body, so well recognized by skin
Suitable for daily use	Available in different molecular sizes, each working slightly differently

How Does It Work?

Hyaluronic acid works like a sponge, drawing in and holding onto water to keep skin, or in this case lips, feeling soft and hydrated. More than half of the hyaluronic acid in the body is found in skin, where it naturally decreases with age, which is part of why skin and lips can feel drier over time.

Its exact effect depends on the size of the molecule used. Larger hyaluronic acid molecules tend to sit on the surface, forming a light film that holds moisture in place, while smaller molecules can move into the upper layers of skin and support hydration a bit deeper down. In clinical research, smaller-molecule hyaluronic acid has shown a measurably greater improvement in skin hydration compared to larger-molecule versions after several weeks of consistent use.

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Frequently Asked Questions

What does hyaluronic acid do for skin?

It works like a sponge, drawing in and holding onto water to help skin or lips feel more hydrated and less dry.

Is hyaluronic acid the same in every product?

Not exactly. Hyaluronic acid comes in different molecular sizes, and each size behaves a little differently on skin. Larger molecules sit on the surface, while smaller ones can reach a bit deeper.

Is hyaluronic acid safe for sensitive skin?

Yes. It is naturally found in the body already, which is part of why it is generally very well tolerated, including on sensitive skin.

Can hyaluronic acid be used on lips?

Yes. Lips lack oil glands and lose moisture easily, so a hydrating, water-binding ingredient like hyaluronic acid is a common choice for lip care.

How long does it take to see results from hyaluronic acid?

Some hydration benefits can be felt quickly, while clinical studies measuring skin hydration over time have shown improvement building over several weeks of consistent use.

Does hyaluronic acid work in dry climates?

It works by drawing in available moisture, so in very dry, low-humidity conditions its effect can be less pronounced. Pairing it with an occlusive or barrier-supporting ingredient helps lock that moisture in regardless of climate.

Is hyaluronic acid natural or synthetic?

It is naturally produced by the body. For cosmetic use, it is typically made through a synthesized, cosmetic-grade process rather than sourced directly from humans or animals.

Which INTOIT product contains hyaluronic acid?

Hyaluronic acid is confirmed only in INTOIT's Lip Restore SPF Lip Balm. It is not currently used in the 6X Complex Face Serum or Maximalist Moisturizer.