COSRX Pure Sodium Hyaluronic Acid 3% Serum, Hydration & Moisture Boosting Facial Serum for Fine Lines & Wrinkles, Plump & Repair Dry Skin, 0.67fl.oz/20ml, No Artificial Fragrance, Korean Skin Care

This Hyaluronic Acid 3 was just about empty.In order for me to use it, I had to tilt the bottle so the pump could actually get some in the tube. I can put the bottle on its side and nothing will come out. I decided to see how far I can tilt this just to see when I’ll be able to see the liquid. About 3/4 tiled when I started to see the liquid. I should empty the bottle just to see how much is actually in it. I’ll be looking for a different brand…. Update.. ( Jan 10- 2024 )I changed my Star rating from 1 to 5 because the seller gave me a full refund because of my empty bottle I received.. They reached out to me and said they will take care of this.. Great customer service. I will order again from this seller.

I have used hyaluronic acid daily for several years. I top it off in the morning with a light moisturizer followed by sunblock. This review is based on that usage.The pros:- I have no pilling with this product. I have used The Ordinary hyaluronic acid and found that it causes pretty distressing levels of pilling. See above, I layer my products. Alone, other products may not pill. If you layer, this is a good option.- No odor. I have purchased other products from other brands that have a pleasant odor. I like that this brand is unscented, but as we all know, being unscented and having no odor are two different things. Gasoline doesn't have fragrance added, but it's stinky. This product has no odor, either when applying or when dry.- Effective. I haven't taken photos to know how effective this is day to day. I always use it, my face is getting older (it is what it is) and I think I'm holding up pretty well. I will say, if I don't put it on right after my morning shower, I feel the difference. I feel dryer, and my skin is less "springy".- Pretty container. This might not be a pro to someone else, but if you have a little display for your lotions and potions, this looks nice on display.Cons:- It is costlier than other brands, but not prohibitively.- The container is a weird shape. It's also black. It is not possible to know how much you have left, and it's hard to get the last drop.Overall, I have bought this a few times and will be buying it again.

This works well for me. Leaves my skin soft and young looking

I always use hyaluronic acid as a first layer on my face. Heard good things about this brand so I wanted to try. I think the quality was good, but the bottle lasted about 2 weeks. Didn't like the dropper part because it is very small.

First you must know this isn't a full ounce but .67 ounces - they could do better with making sure that is front and center so customers know the amount. I am a little disappointed in COSRX for not being completely transparent about that. I really had to search to find the amount. I adore COXRX skincare as my skin absolutely loves it, but this is where they drop the ball. That out of the way ---The serum is beautiful. It's medium thick clear. Glides on my skin so smoothly. Very hydrating. I pair this with the COSRX snail mucin - it took me a long time to order snail mucin as it is a little gross and I make sure to avoid my lips (ew), but the two together calm down my rosacea redness--I have Type 1, which is redness and flushing - stinging if my barrier is compromised.This has Sodium Hyaluronate, which is the better hyaluronate as far as it has a smaller 'molecule size' so it can penetrate better--at least this is what I understand.The fourth ingredient is glycerin, which is very hydrating, and adds a lot to the formulation.I put this on damp skin, and whether I use the snail mucin first, second, or not at all, after applying on damp skin I dampen a makeup sponge or use damp fingers to pat and press more moisture into my skin. I let that 'sink in' for a while - 3-5 minutes or sometimes longer before going on with my skincare.Sometimes my cheeks will be red and this along with the mucin will immediately calm it down - well, immediately as in about 30 seconds or so after applying. Even the act of applying skincare can make my cheeks turn red.I love that COSRX is not expensive at all - even at less than an ounce, it's still a bargain. This along with Beauty of Joseon are my two favorite K-Beauty brands and I don't use much of anything else anymore.

It works so well! But it's so small! And it's So Expensive! Love this! I love all cosrx products. No scent, great on the skin, no irritation (for myself) cute little bottle- to expensive. When it said the weight at one point, I thought it was the weight of the product NOT the weight of the jar & product.

A wonderful Serum by cosrx. This is a great night time serum after cleansing and toning and before moisturizer. I feel it's firming and plumps up fine lines. I think this is one of my new Staples

I absolutely loved this product. HOWEVER, I ran out in just about a month. Now that I have reread the other reviews, I see that this is an issue. Why do they put so very little product in such a large heavy bottle so you think you’re getting more? This will make me rethink the ethics of the Corsx products!