Farmstay Hyaluronic Acid 100 Ampoule

Its simplicity. The formula has just four ingredients water, hyaluronic acid, and two mild supporting ingredients with no fragrance, no alcohol, and nothing extra. That makes it a good choice if your skin reacts to busier products, and it means the hyaluronic acid is doing the work without competing with a long ingredient list. It's hydration stripped back to essentials.

After cleansing and toning, apply a small amount all over the face and gently pat it in with clean hands until it absorbs. Use it before your moisturiser, morning and evening. Because it's lightweight and fragrance-free, it layers easily under other products follow with a cream to seal in the hydration, especially at night or in dry weather.

Yes. The formula is lightweight, fragrance-free and free of oils, so it adds moisture without heaviness which suits oily and combination skin well. Even oily skin needs hydration, and a stripped-back ampoule like this is an easy way to provide it without a rich cream. For very oily skin it can serve as your main hydrating step under a light moisturiser.

It's a strong candidate for sensitive skin precisely because there's so little in it no fragrance, no alcohol, and only four ingredients, which lowers the chance of a reaction. As always, patch test first on the inner arm if your skin is very reactive. If your skin tends to flare with fragranced or active-heavy products, a minimalist formula like this is often better tolerated.

Hyaluronic acid is a humectant it binds moisture to the surface of the skin, helping it feel plumped, soft and less tight. In this ampoule it's the single hero ingredient, so the whole product is built to hydrate and nothing else. The result is skin that looks dewier and feels more comfortable, with fine dry lines appearing softer when skin is well hydrated.

Applying it to slightly damp skin straight after toner, before skin fully dries helps hyaluronic acid work at its best, since it has moisture to bind to. Pat it in, then follow with a moisturiser to seal it. In very dry environments, applying humectants to bone-dry skin without sealing them afterwards can feel tight, so the cream step matters.

The terms overlap a lot in Korean skincare. "Ampoule" usually signals a more concentrated, focused formula aimed at one job here, intensive hydration from hyaluronic acid. In practice you use it like a serum: after toner, before moisturiser. Think of this as a concentrated hydration step rather than a multi-tasking treatment, which is why the ingredient list is so short.

At 100 ml this is a generous size for an ampoule many concentrated ampoules come in 30 to 50 ml. Since you only need a small amount per use, twice a day, one bottle lasts a long time. Keep the cap closed and store it out of direct sunlight and heat so the formula stays fresh over the months you're working through it.