Serums, Anti-aging, Reviews, Skincare

RNW Der. Concentrate Ceramide Plus Serum – Nurture your skin

Saved my tret face

RNW Der. Concentrate Ceramide Serum Plus
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Being a person whose skin (before RNW Ceramide serum, that is) frequently resembled a 2000-year-old sheet of parchment, my biggest skin problem has always been the same: Dry, dry, 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 very sad.

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. Enter RNW Der. Concentrate Ceramide Plus Serum:

Where to buy RNW Der. Concentrate Ceramide Plus Serum?

RNW Der. Concentrate Ceramide Plus Serum
Mia Peterson for Garden Of Muses

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* or YesStyle*. (*affiliate links)

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

The Brand’s principle is that:

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 30ml is a opaque serum that contains 5 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

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

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 are taken from INCIDecoder.

Ingredients Analysis

The ingredient list is impressive. Ever wondered what the “Plus” in Der. Concentrate Ceramide Plus refer to?

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

RNW Der. Concentrate Ceramide Plus Serum
Mia Peterson 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.

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


The third ingredient is glycerin, one of the most effective humectants in skin care products. The skin absorbs glycerin very well. In addition, glycerin is naturally found in the skin and is very well tolerated.


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, or vitamin B3, helps repair the skin barrier and fights anti-aging signs. It also helps fix uneven skin tone by reducing hyperpigmentation and minimizing large pores.


In what I consider true k-beauty style, this serum is also chock-full of peptides: Acetyl Hexapeptide-8, Nonapeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Hexapeptide-9, Tripeptide-1, Copper Tripeptide-1.

These eight peptides plump your skin while improving elasticity and firmness over time.


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.


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


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.


This ceramide serum has no scent.

RNW Der. Concentrate Ceramide Plus Serum texture
Mia Peterson for Garden Of Muses


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

My skin and climate

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

I like this RNW serum; it’s an all-in-one product. You get ceramides, peptides, and a small percentage of niacinamide without having to use 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.

RNW Der. Concentrate Ceramide Plus Serum and dropper
Mia Peterson for Garden Of Muses

How to use RNW Ceramide Plus Serum?

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

  1. Cleanse
  2. Tone;
  3. Apply a full dropper of RNW Der. Concentrate Ceramide Plus onto your slightly damp skin, which will help the active ingredients penetrate;
  4. Pat lightly;
  5. Don’t forget your neck and your cleavage;
  6. 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


  • very well formulated
  • absorbs quickly
  • skin barrier support
  • peptides
  • antioxidants


  • small size
  • expensive

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

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

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)

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.

Pay special attention to ingredients that you might react to. Doing a patch test is always a good idea. Unsure? Best to consult your dermatologist.

Happy skin experimenting, and don’t forget the sunscreen!

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