Serums, Anti-aging, Reviews, Skincare

RNW Der. Concentrate Ceramide Plus Serum Nurtures My Skin

And saves my tret face

RNW Der. Concentrate Ceramide Serum Plus

written by Mia Peterson

updated on

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Being a person whose skin (before the RNW Ceramide serum) frequently resembled a 2000-year-old sheet of parchment, my biggest skin problem has always been Dry and dry.

I was drawn to K-beauty years ago because everything I read, from 10-step routines to reviews of products, seemed to have a heavy focus on moisture. I was always puzzled when putting moisturizer on the night before and waking up with dry patches under my nostrils — Why was it doing that? I had JUST put moisturizer on it!

This was way before I knew anything about the skin’s moisture barrier. Now that I do, I understand that no amount of moisturizer could have fixed my problem at the time. I was washing my face with highly drying products, and it was causing an overall state that left my face vulnerable to hormonal acne, sun damage, and, of course, mega-dryness. My skin’s moisture barrier was unhappy.

I have since been diligently caring for my skin’s moisture barrier. You can include many great things for your skin barrier, but you aren’t doing everything unless you have ceramides in your routine.

Where to Buy the RNW Der. Concentrate Ceramide Plus Serum?

RNW Der. Concentrate Ceramide Plus Serum
Mia Peterson for Garden Of Muses.*Affiliate links below.

Price varies greatly, between $16 and $28. Price/quantity-wise, it’s definitely on the higher end of things. One fl. oz. / 30ml is tiny. It might be the standard quantity for most serums, but it isn’t much, especially when you apply it in the morning and the evening routine.

Shop for the RNW Der. Concentrate Ceramide Plus Serum on Amazon*, YesStyle*, or StyleVana*.

The RNW Brand

RNW, short for Renew Your Skin, is a Korean skincare brand. RNW works with Shinsegae Intercos and Kolmar, two of Korea’s best cosmetic manufacturers, to supply raw materials and produce basic products.

RNW constantly researches to solve fundamental skin problems and provides differentiated skincare solutions. RNW works to restore one’s natural beauty using only minimalistic, essential, EWG green-grade ingredients.

RNW Der. Concentrate Ceramide Plus Serum and ceramide cream
Mia Peterson for Garden Of Muses.*Affiliate links below.

True beauty is being healthy.


RNW doesn’t make absurd, exaggerated claims. In skin care, there are no instant fixes. There are no products that magically transform your skin overnight. But, if you are consistent with your skincare, subtly, over time, magic does happen.

I don’t see much press about RNW’s products in the K-beauty world, but people are missing out by not trying them.

RNW DER. CONCENTRATE Ceramide Plus Serum Claims

The RNW Der. Concentrate Ceramide Plus is an opaque serum that contains five types of ceramide, fatty acid and multiple peptides to protect and strengthen the skin barrier. Ceramides are the building blocks of a healthy skin barrier. This RNW ceramide plus serum ingredients include peptides and ceramide molecules that are encapsulated in a micro fatty acid capsule to improve the deliverance of the highly valuable skincare ingredients. These capsules penetrate deeper into the skin layers to target areas that require skin rejuveration and restoration.
RNW Der. Concentrate Ceramide Plus Serum books
Mia Peterson for Garden Of Muses.*Affiliate links below.

Who is this ceramide serum for?

The brand recommends it for those with combination, dry, mature, and normal skin. Not sure what your skin type is? Please read our guide on Skin types & skin conditions.

I would recommend this for every skin type.

RNW Der. Concentrate Ceramide Plus Serum Ingredients

RNW Der. Concentrate Ceramide Plus Serum Ingredients List (last checked 2024)

Water, Dipropylene Glycol, Glycerin, Methylpropanediol, Glycereth-26, 1,2-Hexanediol, Niacinamide, Dimethicone/​Vinyl Dimethicone Crosspolymer, Betaine, Cynara Scolymus (Artichoke) Leaf Extract, Avena Sativa (Oat) Kernel Extract, Ceramide NP, Ceramide EOP, Ceramide NS, Ceramide AP, Ceramide AS, Acetyl Hexapeptide-8, Nonapeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Hexapeptide-9, Tripeptide-1, Copper Tripeptide-1, Beta Vulgaris (Beet) Root Extract, Eclipta Prostrata Leaf Extract, Algae Extract, Persea Gratissima (Avocado) Oil, Camellia Sinensis Leaf Water, Hydrogenated Lecithin, Cholesterol, Squalane, Tocopherol, Hydrolyzed Hyaluronic Acid, Polyquaternium-51, Glyceryl Stearate, Beta-Glucan, Adenosine, Fructooligosaccharides, Xanthan Gum, Tromethamine, Glyceryl Polymethacrylate, Sucrose Distearate, Acrylates/​C10-30 Alkyl Acrylate Crosspolymer, Butylene Glycol, Silica, Hydrolyzed Corn Starch, Caprylyl Glycol, Ethylhexylglycerin.

Ingredients referred from RNW Website.

Active Humectant/Moisturizing Herbs

Ingredients Analysis

The list of ingredients is quite impressive. Have you ever wondered what the “Plus” stands for in Der. Concentrate Ceramide Plus?

RNW Ceramide Serum contains the skin barrier repair trifecta ceramides, cholesterol, and fatty acids. In addition, this ampoule contains plenty of humectants and a bunch of other barrier-replenishing ingredients.

RNW Der. Concentrate Ceramide Plus Serum
Mia Peterson for Garden Of Muses.*Affiliate links below.


The third ingredient is glycerin, which the skin absorbs very well. In addition, glycerin is naturally found in the skin and is very well tolerated.

Glycerin is also probably the best humectant. It:

  • Hydrates. Glycerin is a very effective humectant, used in many moisturizers to increase skin hydration.
  • Occurs naturally in your skin as part of its home-grown moisturizing system, the natural moisturizing factor (NMF).
  • Strengthens skin barrier. Glycerin also keeps the skin’s lipids flexible, strengthening your skin barrier.
  • Softens. Glycerin softens the skin so other hydrating ingredients can more easily penetrate the skin.
  • Reduces TEWL. Glycerin helps slow down transepidermal water loss (TEWL). Like other humectants, it works by sitting in the top layers of your skin and attracting water from the air and the deeper layers, leaving your skin surface plump and hydrated, even when the weather is arid.
Best Humectants in Skincare
The Guide to Best Humectants in Skincare by Alyssa Tan for Garden of Muses.


Ceramides are a super important component that maintains a healthy skin barrier. They help your skin retain moisture, protect against visible signs of aging, and help keep out environmental stressors that can cause damage and irritation. They’re like the beefy bouncers that keep the creeps out of the nightclub.

When you have enough ceramides, your skin looks visibly healthy. It’s plump, juicy, radiant, and smooth. It’s also more resilient, and you’ll likely notice that you’re less prone to itching, redness, and fine lines.

Benefits of Ceramides for the Skin infographic

Ceramides are especially helpful in the colder months because of how much more difficult it is to retain moisture! Between dry, cold winds and blasting the heater, your poor skin would probably sob if it had any moisture left for tears.

One more benefit to adding ceramides to your beauty routine is that your skin will be able to tolerate chemical exfoliation much better. Healthy, ceramide-packed skin responds much better to actives, and you’re less likely to experience the irritation and over-exfoliation that often comes with some of the stronger acids.

RNW considers that maintaining a healthy skin barrier is crucial. When the skin barrier is damaged, no matter how good your products are, it is like pouring water into a broken jar.

RNW contains a proprietary patented ingredient, Celrederm™, discovered after a long research period. It protects the skin from harmful environments and relieves stress caused by external stimuli, making it healthier. This serum has five types of ceramides to support the skin barrier and its overall hydration: Ceramide NP, Ceramide EOP, Ceramide NS, Ceramide AP, and Ceramide AS.

RNW Der. Concentrate Ceramide Plus Serum flowers
Mia Peterson for Garden Of Muses.*Affiliate links below.


The fifth ingredient is niacinamide – which is in everything, I swear! I feel sorry for people who can’t use this because it’s included in many things.

Niacinamide has been making a splash in the Western market over the last few years and has been splashing in Asian skincare for decades. This beauty powerhouse is the topical form of vitamin B3.

Several well-documented studies show that when used topically, niacinamide can:

Long story short, niacinamide does everything, and the good news is that it is well-tolerated by most skin types. To learn more, please read our Complete Guide on Niacinamide and How to Reduce Hyperpigmentation with Niacinamide.

Niacinamide Skin Benefits
Complete Guide on Niacinamide by Adela Wong for Garden of Muses


I believe this is one of the most underrated ingredients in anti-aging skincare. This ingredient has the genetic makeup that is part of proteins that form amino acids. You will often see di, tri, tetra, hexa etc. prefixes in front peptides that refer to the number of amino acids encompassed in the ingredient. They are cell communicators but possess different “communication styles,” i.e., hormonal activity, immune activity, etc.

So why does any of this jibberish matter? Wrinkles form when the skin loses elasticity and collagen. Peptides are cell communicators that alert your skin to collagen loss so your body can produce more collagen. Theoretically, when peptides are applied topically, they penetrate your skin without damaging your cells so that your body receives the “More collagen, bro!” message, thus stimulating more collagen production wherever it is applied.

It depends greatly on the type of peptides used in a product and its formulation. Some peptides have great anti-inflammatory benefits, while others have been used as antibacterials. The real challenge is having peptides successfully penetrate the skin without breaking down.

Another major obstacle to any new and exciting skincare item is curbing expectations back to reality. Peptides will not erase a few decades from your face or plump your lips like Kylie Jenner. No serum or cream can take back time. Consider alternative options like Botox or surgical intervention if you want these results. This ingredient can have great preventative effects but will not eliminate all the damage already done.

This serum is chock-full of peptides – in what I consider true K-beauty style.

Acetyl Hexapeptide-8 (Argireline) – This is one of the most used peptides in anti-aging products, as it seems to be backed up by more research than other peptides in that domain. It seems quite interesting. The peptide works similarly to Botox by relaxing facial muscles. A study on ten healthy volunteers showed significantly more reduction in the depth of wrinkles for the Argireline group compared to placebo when Argireline was used as an emulsion formulated at 10% of the peptide.

Palmitoyl Tripeptide-1 – Has shown the ability to stimulate collagen synthesis in a human fibroblast culture and prevent its degradation after exposure to UVA light. Furthermore, as shown in a study involving 23 healthy female volunteers, Palmitoyl Tripeptide-1 promotes a small but statistically significant increase in skin thickness;

Palmitoyl Tetrapeptide-7 – One of the most used peptides in anti-aging, it reduces inflammation after UVB exposure;

Copper Tripeptide-1 – The least sexy peptide of the bunch, it is still an antioxidant though it may not penetrate the skin as well as other peptides;


Fatty acid blends in with the ceramides and cholesterol to mimic the skin’s natural lipids and provide moisturization to protect and repair the stratum corneum lipid barrier.


Lecithin is a water-binding emollient with skin-restoring properties when used in high concentrations.


Squalane is an oil, and yet it is characterized by a silky and non-greasy finish. Adding squalane to the mix improves product absorption, hydrates, smoothes, and revitalizes the skin, preserving moisture.
Squalane is a precursor to cholesterol and is naturally produced in the body, which explains its low-irritant properties. The squalane concentrations in the skin are very high up to the age of 20, after which there is, unfortunately, a significant decline.

It also includes a variety of plant extracts and waters for antioxidant benefits to protect the skin barrier from free radicals. Additional goodies include beta-glucan and prebiotic fructooligosaccharides.

RNW Ceramide Serum does not contain parabens, alcohol, essential oils, fragrance, or allergens and is vegan and cruelty-free.

RNW Der. Concentrate Ceramide Plus Serum Box
Mia Peterson for Garden Of Muses.*Affiliate links below.


RNW Ceramide Serum is housed in an exciting cardboard box. The serum itself comes in a weighty, frosted brown glass bottle with a glass dropper.

I prefer pump bottles because I am clumsy, always in a hurry, and risk spilling the whole content. Also, with pump bottles, it is easier to control the product amount, and the serum doesn’t come in contact with air. But that is just a personal preference.

This dropper applicator, in particular, doesn’t allows me to control how much I’m using. Also, the fluid is heavy and dense, so I cannot get the last 10% out of the bottle.


This ceramide serum has no scent.

RNW Der. Concentrate Ceramide Plus Serum texture
Mia Peterson for Garden Of Muses.*Affiliate links below.


RNW Ceramide Serum has what I consider a “classic” ceramide serum texture in that it’s a bit gloopy and works well in a “cocktail” — mixed in your palm with another serum for spreadability. It is milky white and applies clearly.

My Personal Experience with RNW Ceramide Serum

I tend to vary my routine depending on the weather, but winter is always the worst for me in terms of trying to keep my skin in decent shape. It’s still wintertime here, and I have a dry skin type. I’m also a Tretinoin user, so my skin sometimes gets very dry.

RNW Der. Concentrate Ceramide Plus Serum and Box
Mia Peterson for Garden Of Muses.*Affiliate links below.

I like this RNW serum; it’s an all-in-one product. You get ceramides, peptides, and a small percentage of niacinamide without using three different serums. It is extremely fast absorbing, soothing, and moisturizing. It works great paired with tretinoin, leaving the skin smooth and hydrated. I had no irritation. I even used this around my eye contour with no irritation, so that was good, as my eyes are pretty sensitive.

It’s a product that takes its sweet time but eventually does help dry and dehydrated skin.

I look for ceramides in cleansers, mists, moisturizers, and masks; you name it. I haven’t yet discovered that there’s such a thing as too many ceramides in a routine. So, while the rest of my skincare regime is likely also helping with hydration and moisturization, I’ve felt immediate hydration by adding this product to the mix.

Over time, I feel that this ampoule has helped fortify and strengthen my skin barrier. If I have to travel and take only one serum, this will be the one. This must mean something.

On the downside, I was very surprised by how quickly this product reached the bottom. I’ve used this for less than 40 days, but it’s almost empty! Generally, I wouldn’t say I’m a person who uses too much product on the skin; I’d say I use just enough product to go everywhere on my face. That’s why I think for people who use a lot; this would last way less. That’s probably the only thing I didn’t like about this product. I’d buy a liter of this if I could.

RNW Der. Concentrate Ceramide Plus Serum and dropper
Mia Peterson for Garden Of Muses.*Affiliate links below.

How to use RNW Ceramide Plus Serum?

In your skincare routine, this fits in the “serum” step.

  1. Cleanse;
  2. Tone;
  3. Essence;
  4. Apply a full dropper of RNW Der. Concentrate Ceramide Plus onto your slightly damp skin, which will help the active ingredients penetrate;
  5. Pat lightly;
  6. Don’t forget your neck and your cleavage;
  7. You have to wait at least a few minutes to let your serum absorb into your skin before you follow up with moisturizer or sunscreen if in the AM.

I use the RNW serum twice daily.

Tip. I’m always paranoid about getting age spots on my hands, so if you have any excess product, rub it on your hands for an extra anti-aging boost.

RNW Der. Concentrate Ceramide Plus Serum orchid
Mia Peterson for Garden Of Muses.*Affiliate links below.


  • very well formulated
  • absorbs quickly
  • supports the skin barrier
  • peptides
  • antioxidants


  • small size
  • expensive
  • inefficient dropper

Final Thoughts

Ceramides, cholesterol, and fatty acids are the trifecta for skin barrier support. RNW Der. Concentrate Ceramide Plus is one of my favorite options because it also includes niacinamide, a variety of antioxidant plant extracts, and a bunch of peptides, which will help soothe and rebuild the skin barrier.

The RNW brand tends to focus on hero ingredients, and they’re starting to get some well-deserved hype for their ceramide line—the RNW Der. Concentrate Serum is a fabulous, goopy, skin-barrier-supporting serum.

RNW Der. Concentrate Ceramide Plus Serum Box
Mia Peterson for Garden Of Muses.*Affiliate links below.

If you’re a skincare fanatic who wants to try something many folks haven’t heard of while fighting signs of aging and dehydration, you need to try the RNW Der. Concentrate Ceramide Plus. Its unique and highly concentrated formula makes this ceramide serum a one-and-done serum staple in your routine.

Will I repurchase RNW Ceramide Plus Serum?

Although it is very good, I am not sure. It is pretty expensive.

Rating 4.5/5

RNW Ceramide Plus Serum vs. AMPLE:N Ceramide Shot Ampoule

I like them both!

Texture-wise, AMPLE:N Ceramide Shot Ampoule is richer and thicker. RNW absorbs immediately; my skin seems to drink it up. Ample N has a velvety glide and doesn’t absorb as fast.

They are both moisturizing and nourishing, but the RNW Ceramide Plus Serum has a nicer, more luxurious feeling than Ample:n’s Ceramide Ampoule.

I consider the RNW Ceramide Plus Serum in a different league because it offers more benefits. However, if you’re looking for an affordable, comfortable ceramide serum, AMPLE:N Ceramide Shot Ampoule will not disappoint you.

With Ample:n’s Ceramide Ampoule, you only need a very small amount, which spreads well. The 3.38 fl. oz. / 100ml lasts a long, long time. With RNW Ceramide Plus Serum, on the other hand, because it sinks in so quickly, I feel I am using more product, so the one fl. oz. / 30 ml bottle doesn’t last much.

RNW Ceramide Plus Serum is a highly concentrated product, but it is almost three times more expensive (per fl. oz.) than the AMPLE:N Ceramide Shot Ampoule.

RNW Der. Concentrate Ceramide Plus Serum and ceramide cream
Mia Peterson for Garden Of Muses.*Affiliate links below.

Shop for RNW Der. Concentrate Ceramide Plus Serum

You can get RNW Der. Concentrate Ceramide Plus Serum at Amazon* or YesStyle*. RNW also has a ceramide moisturizer* from their “Der. Special” Line.

From the same line, “Der. Concentrate”:

(*affiliate links)

Lastly, I was not paid for this review or received it as a gift.

As always, you do you; be kind to your skin and yourself! Remember that every person’s skin and skin type is different, so what might work for me might not work for you, and vice versa. So, before adding a new product to your skincare routine, it pays to do a little research first.

Before adding the RNW Der. Concentrate Ceramide Plus Serum to your skincare regimen, ensure you are not allergic to it or its ingredients. You should also consult your doctor if you are pregnant, breastfeeding, or have any medical conditions or medications that may interact with the RNW Ceramide Plus Serum. Always do a patch test before applying the RNW Der. Concentrate Ceramide Plus Serum on your skin to avoid adverse reactions.

I am not a dermatologist or licensed aesthetician, but I have sufficient experience and knowledge I gained by testing multiple products and self-exploration. Unsure? Best to consult your dermatologist.

Happy shopping, and don’t forget the sunscreen! Here’s to great skin in 2024!

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