works. but with the way I layer things, I have no idea whether it's this product or another. Just no irritation to my sensitive dry skin. No fragrance.

One of my fave products. Love it so much

good product, try it and love it .

i got this as a sample but loved it! it has that thick sticky texture which makes your face feel hydrated

I used the ordinary hyaluronic serum for long time and when I saw this serum I purchase it to try it and I love it and this is my second purchase

I love love love love

I love this stuff and it is a staple in my routine.

this hyaluronic is one of the best ones i used is light and very hydrating.

i love the texture of this ampuole, so much that i make sure i never skip it unlike other ones when I'm lazy. will definitely be repurchasing, did wonders adding moisture back into my skin

i love the product would love to buy more

A super hydrate serum Good to use in this season Love it

It’s good for moisturizing and soothing. But if you have oily skin, don’t use it.

Moisture my skin and gentle and reasonable for a serum.

okay it’s a very good product i really love it. it suits my skin. i can say that this is the best korean product i use so far. i’d recommend this to my family n friends.

I use this all throughout winter and its such a lifesaver for my dry skin, its kind of thick but it absorbs so well and the hyaluronic acid really makes my skin so soft

good product not regret purchasing at all. love it

good product not regret purchasing at all. love it

Pretty nice serum but for the price it’s not really worth it for a simple hyaluronic acid serum

I can't wait to try this, hopefully this will make my face feel more hydrated

COSRX is one of the finest Korean companies, however I didn't try it yet.

Suitable for all skin type and worth trying. Help to moisturize your skin longer. Your skin will be less oily thanks to this product.

Works well for normal to dry skin!

best moisturizer/hydration ampoule ever, finished my second bottle, and about to get my third, perfect for winter

super hydrating and non-sticky, perfect from dry/harsh winters

this product definitely helps me during this time of the year. very moisturizing and my skin has a glow after using it.

I love this ampoule from Cosrx.

I think the isntree is better but this one isn’t bad. Works well under makeup at least

I like the packaging but regrettably it doesn't work for me.

this product definitely helps me during this time of the year. very moisurizing and my skin has a glow after using it. I'm always done using the whole bottle and thinking about getting another one!

This one hydrates my skin nicely, and leaves it soft and supple. It’s quite sticky, unlike the one from the AC Collection, but I don’t mind because I don’t feel bothered.. or should I say, I don’t feel any heaviness on my face. This product is my fave from the Hydrium line as this is the one giving the locking in the hydration from the whole routine. I love this one so much and will definitely repurchase it!