- “This is one of the products that got me into Korean skincare, and I've continued to repurchase because I do find this is really good for my personal skin texture and it doesn't irritate my skin”9:28–9:31
- “My skin really loved this”9:38–9:40
- Source: Best Korean skincare products in 2025 - May 22, 2025
COSRX
See Reviews of These Products
Advanced Snail 96 Mucin Power Essence"This is one of the products that got me into Korean skincare, and I've continued to repurchase because I do find this is really good for my personal skin texture and it doesn't irritate my skin."$25.00
The 6 Peptide Skin Booster Serum"It's actually blue, not from artificial dyes, but because that is the color of the actual peptide in this."$25.00The Vitamin C 13 Serum"This is the most potent skin brightening serum of this video because it contains 23% of L-ascorbic acid because it contains pure vitamin C."$14.70
The Vitamin C 23 Serum"23% ascorbic acid pure. This is too high and too irritating for daily use."$14.70
Pure Fit Cica Serum"Centella is amazing for soothing irritated sensitive skin. It brings down inflammation, soothes redness."$28
Galactomyces 95 Tone Balancing Essence"The dupe of the beloved SK-II essence is from COSRX, it is their Galactomyces 95 Tone Balancing Essence, which is only $25."$24.00
The Niacinamide 15 Serum"But, if you have tried The Ordinary and it felt too sticky or peeled up on you, go with COSRX Niacinamide 15% serum."$28.00
The Retinol 0.5 Oil"It has 0.5% stabilized pure retinol for anti-aging care."$27.00Browse More
- “These are a fave”
- “I feel like I need this in my skin care routine. I notice when I don't have it in it”7:10–7:14
- “It helps with keeping the balance of my skin barrier and it keeps my skin very hydrated”7:14–7:19
- “It keeps my skin tone more even”7:17–7:25
- “100% recommend and would repurchase and have repurchased”7:35–7:40
- Source: Beauty and skincare empties with repurchase thoughts - May 7, 2026
- “My skin loves it just as an everyday hydrating product, but also when my barrier is slightly damaged, it feels really soothing and calming to me as well”16:12–16:23
- “I also use it as a quick flash masking”16:33–16:38
- “Whenever I come out of the shower and I don't want to do my full skincare routine, I just apply a thick layer of this one and wear it until I have to do my skincare routine a few hours later”16:36–16:40
- “I've been loving this product for so long”16:49–16:54
- Source: 150+ Skincare Empties in 1 Year: What I Actually Bought Again - Jun 13, 2026
- “Your skin just feels so hydrated, and it's a long-lasting hydration on the skin”3:04–3:09
- “It's very non-irritating for the skin. Extremely non-irritating”3:51–3:56
- “It's so well-studied. The data backs it up for sensitive skin, healing skin”3:53–3:59
- “Something I wanted to dislike, ended up loving over time, and I use this regularly”4:01–4:05
- “It's probably the most commonly applied product before we shoot videos”4:05–4:09
- “It really is a tried-and-true product”4:14–4:19
- Source: Best hydrating serums reviewed by dermatologists - Oct 9, 2025
- “It's a good product”
- “It's 96% snail secretion filtrate, which does give hydration and slight repairing benefits as well in that unique sim texture”10:37–10:40
- “I personally love it”
- “It's a really nice product”11:05–11:09
- “It's a quite simple formula which isn't a bad thing”11:09–11:16
- “I found in my experience it's one of those things that like you have to keep using it all the time to just feel hydrated”11:14–11:18
- “It can also feel sticky, which not a lot of people enjoy”11:35–11:39
- “COSRX is great if you're new to K-beauty, curious about snail mucin, or want a simple hydrator to pair with stronger actives”12:55–13:00
- Source: 5 most overrated skincare products and what to buy instead - Sep 12, 2025
- “This is basically an essence with 96% of snail secretion filtrate”4:40–4:47
- “It's because of the stringent sticky formulation that really, really helps the hydration last a very long time on my skin”5:18–5:24
- “I recently got a skin treatment done and my skin has been flaking... I whipped this out”5:26–5:32
- “Because this has such a strong hydration power, it also helps with the regeneration repairing because it helps your skin stay hydrated”5:45–5:53
- “This is so affordable, guys”6:09–6:13
- “This is just a powerhouse of gloopy hydration”6:17–6:22
- “Even though initially it feels gloopy, once you spread it out, it actually spreads out really calmly. It doesn't feel sticky as much”
- “I do think that it's something worth having in your collection as a staple”6:01–6:05
- Source: My top skincare products for 2025 - Dec 28, 2025
- “It's lightweight, absorbs super quickly, and plays well with almost every skin type”4:18–4:24
- “If you got a compromised skin barrier or you're dehydrated or you're just a little bit irritated, this is such a nice product to just use”4:24–4:27
- “It's still a great product”
- “Does it still hold up? 100% absolutely”4:15–4:20
- Source: 10 Years of Viral Korean Skincare: Products That Survived the Hype - Jun 25, 2025
- “Snail doesn't just hydrate and plump out your skin”10:32–10:38
- “It contains natural copper peptides, natural hyaluronic acid, antimicrobial peptides”10:46–10:54
- “It helps to promote collagen production through wound healing capabilities”11:04–11:08
- “It has shown its ability to stimulate collagen and help to reduce the appearance of fine lines and wrinkles, and it is really gentle”11:11–11:17
- “This is why people have been obsessed with this product for at least 10 years”11:30–11:35
- “It's still one of the top-selling K-Beauty products out there”12:18–12:21
- “I would recommend this one for all skin types”13:31–13:34
- “Just know that there is a slightly more moisturizing element to this that some oily skin types find a bit heavy”13:32–13:39
- Source: Best K-Beauty Under $20: Fragrance-Free & Worth It - May 14, 2026
- “The people that use it swear by it”14:24–14:31
- “I think it will certainly do the job of being a great hydrant, a great hydrator and really good for dehydrated skins”14:29–14:34
- Source: Korean skincare viral products deep dive - May 14, 2026
- “I don't know if I would repurchase this”24:18–24:21
- “I don't think I necessarily noticed a difference”
- “I liked this. I don't think it's revolutionary”24:08–24:14
- “Wouldn't repurchase this one necessarily, but I think snail mucin is a good ingredient for my skin”24:26–24:32
- Source: June 2026 empties worth $1000 - Jun 27, 2026
- “I'm going to apply an essence for deeper hydration”1:28–1:32
- Source: Douyin makeup tutorial from a pro makeup artist - May 7, 2026
- “It was really moisturizing and it did help with my skin elasticity, just to feel like my skin is a little bit more bouncy”13:55–14:00
- “I used up two packages of it”14:02–14:07
- “However, I do feel uncomfortable using snail mucin. And that's the reason I don't buy anything with snail mucin anymore”14:05–14:09
- “I remember it feeling very sticky as well”14:13–14:21
- “I would not buy it for $30”
- Source: Yesstyle skincare bestsellers review - Mar 29, 2026
- “The snail mucin is not one of my faves. It's a little like stringy and slimy for me”8:30–8:34
- Source: Amazon Big Spring Sale Top Picks - Mar 27, 2026
- “It's actually blue, not from artificial dyes, but because that is the color of the actual peptide in this”14:22–14:29
- “This is going to help plump, firm, and smooth your skin, as well as add glowy hydration”
- “This is kind of like one of those all-in-one serums. It does a little bit of everything”14:37–14:40
- “It's super lightweight”14:40–14:43
- “I do think it's lightweight enough to wear under your makeup”14:45–14:51
- “This is my favorite serum from COSRX”14:55–14:59
- “The blue peptide serum from COSRX is epic”15:09–15:14
- Source: Amazon Prime Day Haul: Over 40 Best Deals - Jun 23, 2026
- “I love this guy”
- “The pump packaging really does the trick for me”12:28–12:37
- “This one is quite watery and lightweight”12:34–12:40
- “It is the consistency of a toner”12:37–12:43
- “I love that I can just pump it straight onto my face”12:37–12:46
- “It's incredible to use to prep your skin before the rest of your skincare routine”12:46–12:50
- “It kind of started an obsession with skin boosters”12:50–12:56
- “I keep coming back to it again and again”13:12–13:17
- Source: 150+ Skincare Empties in 1 Year: What I Actually Bought Again - Jun 13, 2026
- “You know I love this. I've been using it for a while”9:11–9:17
- “Great for fine lines, dull skin”9:17–9:21
- “It's got six peptides in there, hyaluronic acid, niacinamide”9:19–9:26
- “A very good product without all the fuss”9:24–9:28
- “You've got better hydration, smoother skin, more plump skin”9:26–9:31
- “A great serum I would say cuz it's not oily on the skin. It does do its job without leaving any particular type of residue”9:33–9:38
- Source: Korean skincare and beauty products I recommend for over 40s - Jul 17, 2026
- “I really like this because it's like nice feeling watery serum that I like to put on before my other serums and moisturizers”5:27–5:35
- “It kind of preps my skin for the other skin care products”5:35–5:40
- “This never irritates my skin. I think it would be good for sensitive skin”6:08–6:13
- “It feels really nice, goes on really nice as a watery serum, if you will”6:11–6:18
- “I will always keep this on hand, and I already have a new one on my skin care table”6:16–6:25
- Source: Skincare empties: which ones I repurchased - Jun 11, 2026
- “I really personally love this because of the texture of it”10:47–10:56
- “It is like a very very very thin serum essency water that just feels so hydrating on your skin”10:52–10:59
- “For me if I use this before I use a cream or before I use my SPF then I feel like it's almost enough for me”11:08–11:12
- “I really like this just more for the hydrating effects”11:46–11:50
- Source: Korean skincare viral products deep dive - May 14, 2026
- “The last peptide serum is from COSRX. It's their six peptide booster”13:52–13:58
- “It's easy to work into your skincare routine if you just want to try peptides for the first time. See what you think of them”14:08–14:14
- “This is, I think, a decent product to go with”14:14–14:19
- Source: Budget friendly anti-aging skincare that actually works - Jun 12, 2026
- “The six peptide booster is the COSRX product that I really like a lot”8:34–8:42
- Source: Amazon Big Spring Sale Top Picks - Mar 27, 2026
- “The COSRX 6 peptide booster serum, which also has copper tripeptide 1 on the ingredients list, is clear, too”3:48–4:00
- Source: Dermatologist Compares Dollar Tree vs High-End Skincare - Jan 24, 2026
- “This is the most potent skin brightening serum of this video because it contains 23% of L-ascorbic acid because it contains pure vitamin C”
- “It makes the formula little unstable that is it can go bad very easily if don't store it properly”
- “It is important that you do keep it in the fridge”
- “Once you have open it try to finish it up within six months time”
- “If your COSRX vitamin C serum has turned to darker yellow very golden yellow or very orangeish reddish color it means the serum has oxidized it is not safe to use”
- “COSRX vitamin C serum even though it contains 23% pure vitamin C the formulation is such that it's not gonna irritate your skin even if you use it daily”
- “I have used it daily in my nighttime skincare routine and it never caused a problem”
- “COSRX vitamin C serum works on all kind of pigmentation”
- Source: Reviewing 4 Popular Brightening Korean Serums for Dark Spots - Nov 21, 2025
- “23% ascorbic acid pure. This is too high and too irritating for daily use”12:36–12:37
- “For me this is one to avoid for skin of color”12:48–12:50
- “This is not something that you should be wearing everyday, especially if you've got skin of color”12:55–12:56
- Source: Best & worst brightening vitamin c serums on Nykaa - Sep 15, 2025
- “Centella is amazing for soothing irritated sensitive skin. It brings down inflammation, soothes redness”10:43–10:48
- “It's particularly good for acne-prone skin cuz it can take down the swelling of pimples, the redness and the look of pimples, but also to help promote healing of those pimples”10:46–10:55
- “COSRX is using what they call a seven Cica complex in this serum, and it does contain different forms of the Centella plant in the extract form, but it also contains the four biologically active compounds of the Centella plant”11:30–11:38
- “That's what makes this a compelling, effective, potent Centella serum rather than some of the other products out there”12:47–12:57
- “The texture is so universal. It feels so lightweight and hydrating in this gel texture”
- “It sinks down deep into the skin and really replenishes it at a much more meaningful level”14:40–14:45
- “It's so lightweight, it's non-sticky at all”
- “This is going to work for the oiliest of skin, this is going to work for balanced skin types, combo skin types, dry skin types. This is going to work in summer, it's going to work in winter. It is all-purpose, all skin types, all seasons”15:01–15:05
- Source: How to choose a soothing serum for your skin type - Jun 25, 2026
- “The dupe of the beloved SK-II essence is from COSRX, it is their Galactomyces 95 Tone Balancing Essence, which is only $25”5:15–5:25
- “Both essences have a galactomyces ferment filtrate concentration of over 90% and both formulas have very few other ingredients”5:22–5:31
- “The COSRX version has 2% niacinamide, which is actually great for skin brightening and skin strengthening, but some people are sensitive to niacinamide, so I wanted to call that out”5:35–5:38
- “If you are looking for a little gentle oomph in your skincare or you already have a great skincare routine and you want to level up and not spend a fortune, the COSRX version is amazing”5:41–5:46
- Source: Science-backed skincare dupes saving patients thousands - May 29, 2026
- “But, if you have tried The Ordinary and it felt too sticky or peeled up on you, go with COSRX Niacinamide 15% serum”6:50–6:55
- “Made in Korea, less irritation, way smoother to apply”6:59–7:04
- Source: Korean skincare must-haves: 5 products Koreans actually use - May 17, 2026
- “It has 0.5% stabilized pure retinol for anti-aging care”6:45–6:52
- “In my experience with it, it's one of those that you're not going to be applying every single day. I would say apply it maybe two three times a week and then applying it at night is best”6:58–7:05
- “After you've been using it, always make sure that you are wearing a sunscreen because retinol can make the sun damage your face more”7:09–7:16
- Source: Korean Skincare Favorites Under $27 - Mar 10, 2026
Brand note
COSRX is the K-beauty brand that built its reputation on snail mucin — specifically the Advanced Snail 96 Mucin Power Essence, a sticky, hydrating essence that creators consistently describe as a staple for dehydrated or compromised skin. The texture is the trade-off: it's gloopy and can feel tacky, but that's also what makes the hydration last. If you're new to snail or want a simple, affordable hydrator that plays well with stronger actives, this is the entry point.
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