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RNW DER. CONCENTRATE Niacinamide Plus Serum Ingredients Explained

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Published on July 16, 2022 Submitted by GulluDee

Overview

What it is

Serum with 31 ingredients that contains hyaluronic acid, niacinamide, peptides and Vitamin C

Cool Features

It is reef safe

Suited For

It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

It doesn't contain any common allergens, fragrances, oils, parabens, silicones or sulfates

Fun facts

RNW is from South Korea. This product is used in 1 routines created by our community.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Vitamin C
Niacinamide
Hyaluronic Acid
Peptides (8)

Benefits

Hydrating
Good For Oily Skin
Redness Reducing (3)
Skin Texture
Reduces Large Pores
Anti-Aging (3)
Dark Spots (3)
Scar Healing (2)
Acne Fighting
Brightening (3)

Concerns

Drying
May Worsen Oily Skin (2)
Irritating
Rosacea
Eczema

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Skin Conditioning, Solvent
2
Solvent
3
Humectant, Skin Conditioning, Skin Protecting, Solvent
0 / 0
Helps hydrate Dry Skin IconHelps brighten skin Icon
4
Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconGood for Minimizing Pores IconGood for Dark Spots IconHelps fight Acne IconHelps brighten skin Icon
5
Antimicrobial, Astringent, Masking, Solvent
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
6
Masking, Solvent
7
Skin Conditioning, Solvent
8
Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon
9
10
Astringent, Skin Conditioning
Good for Dark Spots Icon
11
Skin Conditioning
Peptide Icon
12
Skin Conditioning
13
Emollient, Humectant, Masking, Skin Conditioning
May worsen Oily Skin Icon
14
Emulsifying, Skin Conditioning
15
Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
16
Emulsion Stabilising, Gel Forming
1 / 0
17
Skin Conditioning
Helps with Anti-Aging IconGood for Scar Healing Icon
18
Humectant, Skin Conditioning
19
Skin Conditioning
Helps reduce Skin Redness Icon
20
Humectant, Masking, Skin Conditioning, Solvent
1 / 0
21
Buffering, Masking
22
Humectant, Skin Conditioning
Hyaluronic Acid Icon
23
Humectant, Skin Conditioning
Peptide Icon
24
Skin Conditioning
Peptide IconHelps with Anti-Aging Icon
25
Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
26
Skin Conditioning, Skin Protecting
Peptide Icon
27
Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
28
Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
29
Skin Conditioning
Peptide Icon
30
Skin Conditioning
31
Emollient, Humectant, Skin Conditioning

Ingredients Explained

This product contains 31 ingredients. Click on any ingredient to learn more about it
1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
2
What it does: Solvent
Community Rating: Mixed

Methylpropanediol is a synthetic solvent and humectant.

As a solvent, it helps dissolve other ingredients, helping to evenly distribute ingredients throughout the product. This ingredient has also been shown to have antimicrobial properties which makes it a preservative booster.

Methylpropanediol is able to add a bit of moisture to the skin. It also helps other ingredients be better absorbed into the skin, such as salicylic acid.

Learn more about Methylpropanediol
3
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: Loved

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.

Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.

In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.

This ingredient is organic, colorless, odorless, and non-toxic.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Learn more about Glycerin
4
What it does: Smoothing
Community Rating: Loved

Niacinamide has emerged as an all-star ingredient due to its many benefits.

It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.

Other benefits include smoothing wrinkles and minimizing redness.

The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.

Learn more about Niacinamide
5
What it does: Antimicrobial, Astringent, Masking, Solvent
Community Rating: Very Disliked

Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.

These alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.

Other types of astringent alcohols include:

According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.

Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.

Fatty alcohols come from plant oils such as coconut oil. These can help hydrate the skin and are non-irritating. Some fatty alcohols include cetyl and stearyl alcohol.

Learn more about Alcohol
6
What it does: Masking, Solvent
Community Rating: Disliked

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.

As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.

Studies show Dipropylene Glycol is considered safe to use in skincare.

Learn more about Dipropylene Glycol
7
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.

8
What it does: Antioxidant
Community Rating: Liked

Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.

When applied to skin, Ascorbyl Glucoside turns into Ascorbic Acid.

Ascorbyl Glucoside is an antioxidant. Antioxidants help fight free-radicals, or molecules that may damage skin cells.

It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.

Read more about other types of Vitamin C:

Learn more about Ascorbyl Glucoside
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What it does:
Community Rating: Loved

Glutathione is an antioxidant naturally found in our bodies. It is also naturally occurring in plants, animals, fungi, and some bacteria. As an antioxidant, Glutathione helps prevent oxidative damage to parts of our cell.

While Glutathione is said to help with skin lightening, the results from research are inconclusive. Further studies are needed.

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What it does: Astringent, Skin Conditioning
Community Rating: Loved

Tranexamic Acid is best used for treating hyperpigmentation, discoloration, and melasma. It can also help build a stronger skin barrier.

Once applied, Tranexamic Acid starts decreasing inflammation from UV exposure. Tranexamic Acid also prevents our skin cells from meeting the pigment production cells.

Fun fact: Tranexamic Acid is also a medication used to reduce heavy bleeding.

This acid is derived from lysine, an amino acid.

Learn more about Tranexamic Acid
11
What it does: Skin Conditioning
Community Rating: Loved

Nonapeptide-1 is created from amino acids including arginine and lysine.

Nonapeptide-1 has antioxidant and antimicrobial properties.

Emerging studies show Nonapeptide-1 to help with reducing pigmentation and brightening the skin. It has shown to prevent the activation of tyrosinase, an enzyme in the skin that begins the process of melanin creation. Melanin is responsible for giving skin a tan or dark spots.

Learn more about Nonapeptide-1
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What it does: Skin Conditioning
Community Rating: Liked

Eclipta Prostrata Leaf Extract comes from the false daisy plant. False daisy contains antioxidant compounds such as flavonoids.

One study found false daisy to absorb UVA and UVB radiation. However, this should not replace your sunscreen.

False daisy is used in both traditional medicines and foods throughout Southeast Asia and India.

Learn more about Eclipta Prostrata Leaf Extract
13
What it does: Emollient, Humectant, Masking, Skin Conditioning
Community Rating: Disliked

Algae Extract is derived from Algae. Algae is an informal term for a group of aquatic organisms that can photosynthesize. It is estimated there are at least 30,000 types of Algae.

Algae contains antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.

Algae can also help with soothing and hydrating skin.

Many different types of algae have different benefits.

Learn more about Algae Extract
14
What it does: Emulsifying, Skin Conditioning
Community Rating: Liked

Hydrogenated Lecithin is created from the hydrogenation of lecithin. Hydrogenation is a chemical reaction between molecule hydrogen and another element.

Hydrogenated Lecithin is an emollient and emulsifier. As an emollient, it helps soften skin by trapping moisture within.

The phospholipids in Hydrogenated Lecithin can produce liposomes. Liposomes help other ingredients get through the skin barrier to be better absorbed.

As an emulsifier, it prevents oil and water ingredients from separating.

Learn more about Hydrogenated Lecithin
15
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Learn more about Xanthan Gum
16
What it does: Emulsion Stabilising, Gel Forming
Community Rating: Disliked

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

Carbomer is commonly found in many types of cosmetics products. It is found to be safe in concentrations up to 15%. However, a high amount of carbomer can cause pilling or balling up of products. Most products contain 1% of less of carbomer.

17
What it does: Skin Conditioning
Community Rating: Loved

Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.

Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.

Studies have found adenosine may also help with wound healing.

In skincare products, Adenosine is usually derived from yeast.

Learn more about Adenosine
18
What it does: Humectant, Skin Conditioning
Community Rating: Liked

Fructooligosaccharides is an alternative sweetener. It is often derived from the blue agave plant.

Fructooligosaccharides is a prebiotic and helps to hydrate the skin. Emerging studies are also showing fructooligosaccharides to have antioxidant properties.

As a humectant, Fructooligosaccharides helps draw moisture to the skin, helping to hydrate the skin.

Bananas, onions, garlic, asparagus, jícama, and leeks also contain fructooligosaccharides.

Learn more about Fructooligosaccharides
19
What it does: Skin Conditioning
Community Rating: Loved

Beta-Glucan is a polysaccharide. It can be derived from the cell walls of seaweed, oats, yeast, and fungi.

Beta-Glucan is a humectant, meaning it can hold large amounts of water. This helps hydrate the skin. It also helps boost your skin's natural barrier.

Beta-Glucan has antioxidant properties. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.

Studies show Beta-Glucan may be an effective wrinkle reducer as it can deeply penetrate into skin. It has also been show to help with wound healing.

Learn more about Beta-Glucan
20
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

21
What it does: Buffering, Masking
Community Rating: Liked

Tromethamine is an aliphatic compound. An aliphatic compound is an organic compound with open-chained carbon atoms. It is synthetically created. Tromethamine is used to balance pH and improve texture.

As an emulsifier, Tromethamine prevents oil and water ingredients from separating. This helps stabilize the product and elongate a product's shelf life. Tromethamine also makes a product thicker.

Tromethamine helps balance the pH level of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.

Oral Tromethanmine is an anti-inflammatory drug but plays the role of masking, adding fragrance, and/or balancing pH in skincare.

1,3-Propanediol, 2-amino-2-(hydroxymethyl)-

Learn more about Tromethamine
22
What it does: Humectant, Skin Conditioning
Community Rating: Liked

Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.

Low molecular weight HA has been shown to hydrate and increase elasticity of the skin. Increasing elasticity is also associated with reduction of wrinkle depth.

One study found topical low molecular weight hyaluronic acid may be considered for the treatment of rosacea in the adult population. However, we always recommend speaking with a professional about your skin concerns.

Hyaluronic acids are a humectant. This means they draw moisture from the air. Hyaluronic acids help moisturize, soothe, and protect the skin.

Read more about other common forms of hyaluronic acid:

Learn more about Hydrolyzed Hyaluronic Acid
23
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Acetyl Hexapeptide-8 is a peptide. A common name for this peptide is Argireline.

Argireline has a similar function to botox. It prevents muscle movement and contractions. By preventing muscles from moving, Argireline also prohibits the formation of fine lines and wrinkles. However, research is lacking in proving this ingredient to be as effective as botox.

Argireline tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Read more about other common types of peptides here:

Learn more about Acetyl Hexapeptide-8
24
What it does: Skin Conditioning
Community Rating: Loved

Copper Tripeptide-1 is a peptide naturally found in body fluids. Peptides are building blocks for protein.

Studies show this ingredient tells our body to create more collagen and elastin. Collagen is a protein that makes connective tissue. Elastin is the protein responsible for giving our skin elasticity. Our bodies start to slow down collagen and elastin production with age.

Boosting collagen and elastin production can help create a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin. It's a win-win situation!

Studies show this ingredient can help with scar healing. This is because it breaks down damaged collagen, the main component of scar tissue. It may also help with reducing sunspots, acne scars, and uneven skin tone.

This ingredient is also an antioxidant. Antioxidants help the body fight off free-radicals. Free radicals are molecules that damage our cells, such as pollution and tobacco smoke.

More benefits: Copper Tripeptide-1 helps maintain tissues in blood vessels and promote natural hyaluronic acid in skin.

Read more about other common types of peptides here:

Learn more about Copper Tripeptide-1
25
What it does: Skin Conditioning
Community Rating: Loved

Palmitoyl Tetrapeptide-7 is a peptide. Peptides are building blocks for protein.

This ingredient consists of four amino acids and palmitic acid. These amino acids are arginine, proline, glutamine, and glycine.

This ingredient has many benefits. These benefits include boosting collagen production, fighting inflammation, and reversing UV damage.

By preventing our bodies from producing interleukins, Palmitoyl Tetrapeptide-7 helps fight inflammation. An interleukin is a chemical that signals to the body to produce an inflammatory response. Interleukin production is accelerated by UV radiation.

Palmitoyl Tetrapeptide-7 tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Read more about other common types of peptides here:

Learn more about Palmitoyl Tetrapeptide-7
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What it does: Skin Conditioning, Skin Protecting
Community Rating: Loved

Tripeptide-1 is a peptide.

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What it does: Skin Conditioning
Community Rating: Loved

You might know this ingredients as Matrixyl. It is a peptide.

Peptides are building blocks for protein. Palmitoyl Pentapeptide-4 consists of five amino acids. These amino acids include: 2 lysines, 2 threonines, and serine

This ingredients tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Thus, Matrixyl may help improve the look of wrinkles.

Read more about other common types of peptides here:

Learn more about Palmitoyl Pentapeptide-4
28
What it does: Skin Conditioning
Community Rating: Liked

Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.

Palmitoyl Tripeptide-1 is a signal peptide. This means it tells our skin to create collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Palmitoyl Tripeptide-1 can help reduce wrinkles and make the skin look more youthful.

Read more about other common types of peptides here:

Learn more about Palmitoyl Tripeptide-1
29
What it does: Skin Conditioning
Community Rating: Loved

Hexapeptide-9 is a peptide.

30
What it does: Skin Conditioning
Community Rating: Mixed

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

31
What it does: Emollient, Humectant, Skin Conditioning
Community Rating: Liked

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.

Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.

This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.

Learn more about Caprylyl Glycol
Embed Ingredients

Here's what our community thinks of the 31 ingredients in this product ✨

71% are loved or liked
13% have mixed ratings
16% are disliked or very disliked
0% have no rating yet

When to use

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