Overview
What they are
These products are both reef safe serums. They have a total of 14 ingredients in common
Cool Features
They both contain hyaluronic acid, niacinamide and peptides
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, parabens or sulfates
What's Inside
They both contain fragrances, oils and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
RNW DER. CONCENTRATE Ceramide Plus 49 ingredients
Numbuzin No.9 Secret Firming Serum 37 ingredients
At a glance
Click on any of the items below to learn more
RNW DER. CONCENTRATE Ceramide Plus 49 ingredients
Numbuzin No.9 Secret Firming Serum 37 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 5 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 8 ingredients that may have this attribute:
Benefits
This product contains 12 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 9 ingredients that may have this attribute:
This product contains 6 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 8 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 4 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Ingredients Side-by-side
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.
Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Glycereth-26 is a synthetic ingredient and polyethylene glycol ether of Glycerin. Glycerin is already naturally found in your skin and helps keep your skin moisturized.
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.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
Antioxidant Helps hydrate Dry Skin
Avena Sativa Kernel Extract is is derived from colloidal oatmeal. Besides being a healthy breakfast, oats have many benefits in skincare too.
4 Benefits
Ceramide NS is a type of Ceramide. Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.
Acetyl Hexapeptide-8 is a peptide. A common name for this peptide is Argireline.
Not safe for Fungal Acne
Palmitoyl Tetrapeptide-7 is a peptide. Peptides are building blocks for protein.
Not safe for Fungal Acne
You might know this ingredients as Matrixyl. It is a peptide.
Not safe for Fungal Acne
Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.
Helps with Anti-Aging
Copper Tripeptide-1 is a peptide naturally found in body fluids. Peptides are building blocks for protein.
Beta Vulgaris Root Extract comes from the beet root plant. Beet Root has high Vitamin C content.
Eclipta Prostrata Leaf Extract comes from the false daisy plant. False daisy contains antioxidant compounds such as flavonoids.
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.
Helps hydrate Dry Skin Not safe for Fungal Acne
Persea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.
Hydrogenated Lecithin is created from the hydrogenation of lecithin. Hydrogenation is a chemical reaction between molecule hydrogen and another element.
Cholesterol is a class of organic molecules called lipids. It helps hydrate your skin and is essential to having a healthy skin barrier.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
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.
Polyquaternium-51 is a polymer salt. It helps hydrate the skin by creating a film on top. This film traps moisture in, keeping your skin soft and hydrated.
Glyceryl Stearate is a mix of glycerin and stearic acid.
Beta-Glucan is a polysaccharide. It can be derived from the cell walls of seaweed, oats, yeast, and fungi.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Fructooligosaccharides is an alternative sweetener. It is often derived from the blue agave plant.
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.
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.
Sucrose Distearate is made up of the sucrose (sugar) esthers of stearic acid. It is an emollient and emulsifier.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
2 Concerns
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Water, Dipropylene Glycol, Glycerin, Methylpropanediol, Glycereth-26, 1,2-Hexanediol, Niacinamide, Dimethicone, Betaine, Cynara Scolymus Leaf Extract, Avena Sativa 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 Root Extract, Eclipta Prostrata Leaf Extract, Algae Extract, Persea Gratissima 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 Copolymer, Butylene Glycol, Silica, Hydrolyzed Starch, Caprylyl Glycol, Ethylhexylglycerin
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.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Hydrogenated Polydecene is an emollient. It creates a non-occlusive film on the skin that offers extra protection for your skin barrier.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Pentaerythrityl Tetraethylhexanoate is an emollient. Emollients help your skin stay soft and smooth by creating a thin film on top. This film helps trap moisture. It also helps improve the texture of products by adding thickness or helping to create a silky feel.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
2 Concerns
Butyrospermum Parkii Butter is a plant lipid from the fruit of the Shea Tree. It is an effective skin hydrator and emollient.
2 Concerns
Hydrogenated Vegetable Oil is created by adding hydrogen to vegetable oil in order to give it more stability. This process also raises the melting point of vegetable oil. In cosmetics, it is an emollient.
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.
Not safe for Fungal Acne
Palmitoyl Tripeptide-5 isn't fungal acne safe and is a peptide.
Acetyl Hexapeptide-8 is a peptide. A common name for this peptide is Argireline.
EU Allergen
Lavandula Angustifolia Oil is more commonly known as lavender essential oil. Lavandula Angustifolia is known as the English Lavender and famous for creating purple fields in Provence, France.
Citrus Aurantium Dulcis Peel Oil is oil from the peel of an orange fruit.
Rosmarinus Officinalis Leaf Oil is oil expressed from the leaves of the rosemary plant.
Oil EU Allergen
This ingredient comes from the bark of the Cedarwood tree.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Glyceryl Stearate Citrate is a citric acid ester of glyceryl stearate.
Polyglyceryl-3 Methylglucose Distearate is created from the diester of stearic acid and the condensation product of methylglucose and Polyglycerin-3.
Glyceryl Stearate is a mix of glycerin and stearic acid.
3 Concerns
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Palmitic Acid is a fatty acid found in our skin. In cosmetics, it is usually derived from palm oil. It is a cleanser, emollient, and emulsifier.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
Dimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
Glyceryl Caprylate comes from glycerin and caprylic acid, a fatty acid from coconut.
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.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
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.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
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.
2 Concerns
Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Limonene is a fragrance that adds scent and taste to a formulation.
Water, Glycerin, Hydrogenated Polydecene, Propanediol, Pentaerythrityl Tetraethylhexanoate, Niacinamide, Dimethicone, Butylene Glycol, Butyrospermum Parkii Butter, Hydrogenated Vegetable Oil, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Palmitoyl Tripeptide-5, Acetyl Hexapeptide-8, Lavandula Angustifolia Oil, Citrus Aurantium Dulcis Peel Oil, Rosmarinus Officinalis Leaf Oil, Cedrus Atlantica Bark Oil, Adenosine, Glyceryl Stearate Citrate, Polyglyceryl-3 Methylglucose Distearate, Glyceryl Stearate, Cetearyl Alcohol, Palmitic Acid, Stearic Acid, Dimethicone/Vinyl Dimethicone Crosspolymer, Glyceryl Caprylate, Sodium Polyacrylate, Xanthan Gum, Caprylyl Glycol, 1,2-Hexanediol, Ethylhexylglycerin, Disodium EDTA, Carbomer, Tromethamine, Linalool, Limonene
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin 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 Glycerin1,2-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.
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 NiacinamideDimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
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-8Hydrolyzed 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 AcidGlyceryl Stearate is a mix of glycerin and stearic acid.
Glyceryl Stearate is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.
As an emollient, it helps soften skin and supports barrier-replenishing ingredients.
In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced. The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateAdenosine 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 AdenosineXanthan 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 GumTromethamine 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 TromethamineButylene 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.
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 GlycolEthylhexylglycerin (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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
RNW DER. CONCENTRATE Ceramide Plus 49 ingredients
Numbuzin No.9 Secret Firming Serum 37 ingredients
Reviews
Here's what our community thinks
RNW DER. CONCENTRATE Ceramide Plus 49 ingredients
Clover
Packed full of amazing ingredients!
This is one of my favorite serums for aiding in skin barrier health. The ingredient list is really impressive,...
Packed full of amazing ingredients!
This is one of my favorite serums for aiding in skin barrier health. The ingredient list is really impressive, but some stand outs that my skin just loves would be the ceramides, peptides, niacinamide, oatmeal extract, algae extract, cholesterol, and squalane (plus much more!). The consistency of this serum is on the thicker side, which I prefer to more watery serums because I find thicker serums easier to apply. The formula is hydrating with ingredients like glycerin, betaine, and hyaluronic acid, but I definitely recommend using a good moisturizer to lock in this serum. Overall, it’s just a great product that I imagine many people could benefit from. If you are looking for a barrier support/peptide serum this is a wonderful option that I would highly recommend.
Rosy123
I am on my second bottle of this. I bought it for the hydration and I have not been disappointed. This, along with Centella products and double...
I am on my second bottle of this. I bought it for the hydration and I have not been disappointed. This, along with Centella products and double moisturising at night have made a big difference in the hydration of my mature, dry skin. I can see this being a permanent fixture in my am and pm routine.
