Also known as: Sodium Hyaluronate / Hydrolyzed Hyaluronic Acid
What it is
Hyaluronic acid is a humectant — a moisture magnet that can hold many times its weight in water, which is why it's the go-to hydration ingredient.
What it does for your skin
It gives skin an instant drink: skin looks plumper, dewier and smoother, and fine lines from dehydration look softened.
Who it’s for
Everyone, but especially skin that feels tight, looks dull or gets dehydrated — even oily skin, since it's oil-free hydration.
How we use it
It's the star of Big Drink Serum, which layers two weights of HA and works best pressed into damp skin.
Questions, answered
How do you use hyaluronic acid?
Apply it to slightly damp skin, then seal with a moisturiser so it draws water in rather than out.
Is hyaluronic acid good for oily skin?
Yes — it's lightweight, oil-free hydration, and dehydrated skin often overproduces oil, so it can genuinely help.