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💧 Unlock the secret to skin that stays hydrated, calm, and radiant all day long!
IUNIK Beta-Glucan Power Deep Moisture Serum is a vegan, fragrance-free Korean skincare essential formulated with mushroom-derived beta-glucan, delivering 20% more hydration than hyaluronic acid. Designed for dry, mature, and sensitive skin, it soothes irritation, improves elasticity, and layers seamlessly under makeup or other skincare products for lasting moisture and a smooth, healthy complexion.



















| ASIN | B07NNVZNQR |
| Active Ingredients | Beta-Glucan, Glycerin, Adenosine |
| Best Sellers Rank | #1,911 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #59 in Facial Serums |
| Brand | IUNIK |
| Brand Name | IUNIK |
| Customer Reviews | 4.4 out of 5 stars 2,331 Reviews |
| Item Form | Serum |
| Item Volume | 50 Milliliters |
| Item Weight | 0.02 Kilograms |
| Manufacturer | COTHEON Co., Ltd |
| Manufacturer Part Number | CJAPQ_02 |
| Material Features | Concentrated |
| Material Type Free | VEGAN (Cruelty-Free) Chemical Free Paraben Free Sulfate Free Mineral Oil Free |
| Model Number | CJAPQ_02 |
| Number of Items | 1 |
| Product Benefits | Beta-glucan delivers hydration deeply into skin, while boosting skin health and soothes irritation like redness and rosacea., Firming, Glow, Hydrating, Moisturizing, Soothing Product Benefits Beta-glucan delivers hydration deeply into skin, while boosting skin health and soothes irritation like redness and rosacea., Firming, Glow, Hydrating, Moisturizing, Soothing See more |
| Recommended Uses For Product | Daily facial serum for dry or dehydrated skin Hydrating care for mature or sagging skin Soothing care for sensitive or easily irritated skin Improving the look of fine lines and rough texture Layering as a moisture-boosting step in a Korean skincare routine |
| Scent | Unscented |
| Scent Name | Unscented |
| Skin Tone | All |
| Skin Type | All, Combination, Dry, Sensitive |
| Special Ingredients | Adenosine, Beta-Glucan, Glycerin |
| Target Use Body Part | Face |
| UPC | 759430449315 |
| Unit Count | 1.71 Fluid Ounces |
| Use for | Face |
M**W
I Highly Recommend This Serum!
I am absolutely in love with this serum!!! I have sensitive skin and rosacea and this serum causes absolutely no irritation. There is no fragrance. The moisture that it puts into my skin makes my dry skin glow. I use it morning and night because it makes my skin feel so good!!! It is very effective and I highly recommend it!
S**Y
Awesome Alt to HA!
This is a fantastic alternative for anyone who can't tolerate hyaluronic acid, such as myself. It's deeply hydrating for my very dry dehydrated skin and it layers perfectly under moisturizer or whatever you follow your routine up with. Keeping it in stock in my routine
N**F
Hydrates , non greasy
Love this non greasy, lightweight serum! It feels great on my skin and actually made my skin feel hydrated and plump!
M**E
Gentle on very sensitive skin, should probably be used alone and not with other serums
Great product, very very gentle on sensitive skin. I have very sensitive skin that tends to be extremely dry in the winter and also from using prescription retinoids. I was concerned that this would be sticky bc snail mucin makes me break out. It gives you a literal glow but it should probably not be used with other serums. I tried to add it twice daily in addition to my routine (face wash, toner, eye cream, ceramide barrier serum, beta toucan, regular moisturizer) and it made me get a few huge painful white heads but I am mostly sure that was on me for using them all together. I would probably keep using this either on days I use rx retinoid 3x a week or only at night or in the AM but not both. If hot or humid, I dont even know if I would use another moisturizer on top of it even though I know I should bc it is so moisture locking I think it would cause breakouts even on dry or sensitive skin
J**2
Game changer - great on its own or mixed into cosmetics
This is a great hydrating serum to add to your skin care routine. It is quite thick and a little goes a long way. It doesn’t leave a residue and it plays well with other skin care products as well as makeup/sunscreen. As someone else mentioned it’s not as “life changing” as some of the claims, however it can also be used to add moisture to other products. I have a favorite sunscreen (Australian Gold light) which happens to be matte when it drys. At 57 with some fine lines all it did was highlight those no matter what primer or moisturizer I used underneath. The color (it doubles as a BB cream) is perfect for me because it has slightly pink undertones. I wanted to move away from my foundation routine and have a more “natural” look. Finding a hydrating replacement was impossible. Knowing beta glucan is added to many skin care products to enhance hydration, I decided to experiment with mixing a ratio of 40-50% beta glucan to my sunscreen to make it more “dewy”. I mixed a small amount in a little “tester jar” I had. After thoroughly mixing, it set overnight to ensure the ingredients meshed together. (I first tried this in my hand and it took awhile for everything to come together so it was homogenous). The next day I applied it to my skin and had exactly what I wanted. A silky light to medium coverage sunscreen that left my skin looking slightly dewy, but not greasy. Once it set (was no longer shiny), I applied a bit of blush and that was it. It set up leaving me looking natural - not overly dewy. It also had enough coverage to hide unevenness in my skin tone. It also doesn’t highlight my fine lines as much- only slightly under my eyes (which at my age comes with the territory). I also use this as part of my AM and PM skincare. Layering it with HA and my vitamin C serum. I will also use a bit before using my CosRx masks to add a bit more hydration. I usually spray my face with Eue Thermal mineral water before applying the beta glucan (or any HA product), then apply the mask. Overall, it’s a great option for anyone allergic to HA or wanting to boost their routine. Will it perform miracles? No. But it is a great booster. Using it in some of my cosmetics took some trial and error, but I’m really happy I tried it. So the purchase based just on that was worth it to me. Depending on how you use it, it seems to last a long time. Updated Comment 3/2026: I’ve been using this serum as part of daily my “skin flooding” routine. It’s kept my 59 year old skin looking plush and healthy. My fine lines aren’t as noticeable and the routine is easy, affordable, and all available on Amazon. I cleanse (I do a double cleanse when I’m wearing the Australian Gold BB Cream/Sunscreen), perhaps use a toner, spray my face with Avene Eue Thermal Mineral Water (or leave wet), apply the Beta Glucan Serum generously (2-3 droppers full), let it set for a minute or so, apply either Vanicream or CeraVe Intensive Moisturizer. If I’m going to be wearing makeup I will then apply my primer a minute or two after letting the moisturizer set (which will further reduce moisture loss), then apply my sunscreen/BB cream. I’ve also worn my P. Calm Sunscreen (which is amazing, BTW), over the serum after it has absorbed a bit on days when I’m not wearing makeup.
D**Z
Jump on this trend
This product does what you need it to do! Now I get the hype behind this. It made my skin look so hydrated. The only thing I wish was that the bottle would be glass as it is plastic. But you get enough product in the bottle. Application is a dropper so you can really get the amount you want. No fragrance and the effectiveness is great.
I**.
Very good serum
This serum helped me out a lot! It is incredibly soothing and has been very good for my rosacea and acne-prone skin. It provides deep hydration without being greasy or causing breakouts. If you have sensitive or "fussy" skin, I highly recommend giving this a try—it really works!
T**.
Amazing product
Amazing product. I wear it with IUNIK moisturizer. You can't get a better product for dry skin. My skin feels hydrated, my complexion looks so bright and even and fine lines barely visible
N**J
Very good
It keeps skin hydrated and gives a good glow
M**.
Un portento
Recensione di mia moglie: Lo avevo usato diversi anni fa quando ancora aveva l'etichetta color marrone ed era difficilmente reperibile in Italia se non facendolo spedire dalla Corea. Mi ero trovata molto bene ma, essendo acquistabile solo su siti esteri con spedizioni lunghe, avevo poi lasciato perdere. Recentemente ho visto che anche Amazon lo vende e ho deciso di ricomprarlo. È davvero un prodotto molto valido, la mia pelle (42 anni, ultrasensibile, mista con zone secche soprattutto sul contorno occhi e soggetta agli effetti collaterali di un farmaco non leggerissimo) è rinata fin dalle primissime applicazioni. Ha una consistenza tipo gel che si assorbe subito. Sotto l'abituale crema idratante è un portento. Utilizzabile sia mattina che sera.
D**E
bonne surprise!
meilleur que l'acide hyaluronique!!! il est bien plus puissant pour retenir l'hydratation et repulper la peau et la lisser. Perso je le mets après mon sérum rétinol et avant ma crème de nuit, le lendemain la peau est repulpée lissée et surtout ne graisse pas! bonne trouvaille et je recommanderai! le flacon a une grande contenance de 50ml et il ne faut que 3/4 gouttes c'est bluffant!
F**E
Beter dan hyaluronzuurserums!
Deze serum is veel hydraterender, neemt veel beter op in de huid dan hyaluronzuur serums! Je huid is nadien veel voller, soepeler! Dit is een must in elke badkamer!
A**E
Super Serum für gestresste Haut
Hat meiner gestresste Haut extrem geholfen
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