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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Numbuzin No.5 Vitamin Concentrated Serum versus Numbuzin No. 5 Goodbye Blemish Serum .

Last updated on August 29, 2023. Published on June 14, 2023

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 20 ingredients in common

Cool Features

They both contain hyaluronic acid, niacinamide and Vitamin C

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, parabens, silicones or sulfates

What's Inside

They both contain fragrances

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Serum South Korean Brand South Korea
Serum South Korean Brand South Korea

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Price

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Buy No.5 Vitamin Concentrated Serum

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Buy No. 5 Goodbye Blemish Serum

Starts at $17.59

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
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

Vitamin C (3)
Vitamin E (2)
Niacinamide
Ceramides
Hyaluronic Acid

Benefits

Hydrating (7)
Good For Oily Skin
Redness Reducing (8)
Reduces Irritation (5)
Skin Texture (3)
Reduces Large Pores
Anti-Aging (7)
Dark Spots (7)
Scar Healing (7)
Acne Fighting
Brightening (6)

Concerns

May Worsen Oily Skin
Irritating

Notable Ingredients

Vitamin C (3)
Niacinamide
Hyaluronic Acid

Benefits

Hydrating
Good For Oily Skin
Redness Reducing (9)
Reduces Irritation (6)
Skin Texture (3)
Reduces Large Pores (2)
Anti-Aging (4)
Dark Spots (6)
Scar Healing (5)
Acne Fighting (2)
Brightening (4)
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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1
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.

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 2.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 2.

2
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

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 3.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 7.

3
What it does: Skin Conditioning
Community Rating: Loved

Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.

lt is a humectant, meaning that it helps the skin attract and retain moisture.

Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

Learn more about Panthenol

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 4.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 26.

4
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

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 6.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 35.

5
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.

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 7.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 6.

6
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 16.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 27.

7
What it does: Skin Conditioning
Community Rating: Liked

Melia Azadirachta Flower Extract is from the Neem tree. Neem trees originate from India.

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

The flowers of this tree are lilac colored.

Learn more about Melia Azadirachta Flower Extract

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 17.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 8.

8
What it does: Skin Conditioning
Community Rating: Liked

Ocimum Sanctum Leaf Extract comes from the Holy Basil plant. Holy Basil is native to India.

Holy Basil is rich in antioxidants due to its high romarinic acid, ferulic acid, and rutin content. The ferulic acid may help with skin brightening and help soothe the skin.

Antioxidants may help with anti-aging due to its ability to neutralize free-radical molecules. These molecules may damage skin cells and DNA.

While Holy Basil has many claims to help fight acne, more research is needed.

One thing to note is the presence of tannins. Tannins are naturally found in nature. This compound may be skin-sensitizing.

Learn more about Ocimum Sanctum Leaf Extract

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 18.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 9.

9
What it does: Skin Conditioning
Community Rating: Liked

Melia Azadirachta Leaf Extract is extract from the neem plant.

Melia Azadirachta Leaf Extract is an antioxidant. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.

The leaves of this tree contain flavonoids and polyphenols. These two compounds are antioxidants, anti-inflammatory, and antibacterial. Further research is needed as to their effects when applied on skin.

Learn more about Melia Azadirachta Leaf Extract

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 19.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 10.

10
What it does: Masking, Perfuming
Community Rating: Liked

Curcuma Longa Root Extract is from the spice, turmeric. Besides being a healthy and delicious spice, turmeric also has plenty of skincare benefits. It has anti-inflammatory, antioxidant, and anti-microbial properties.

Turmeric contains curcumin, an antioxidant. Antioxidants help neutralize unstable free-radical molecules. Free-radical molecules may damage your skin's cells and DNA. Curcumin may help with anti-aging.

Curcumin also has anti-inflammatory properties. It can help soothe skin and reduce irritation. On top of that, curcumin has been shown to help prevent hyperpigmentation from sun damage.

The anti-microbial property of turmeric can make it effective in treating acne. It has also been shown to help regulate the production of sebum.

Learn more about Curcuma Longa Root Extract

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 20.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 11.

11
What it does: Skin Conditioning
Community Rating: Liked

Corallina Officinalis Extract is from the red seaweed, Corallina Officinalis. This seaweed is found all over the world but is most common in the rocky shores of Great Britain and Ireland.

Corallina Officinalis Extract contains antioxidant and emollient properties.

Extracted polysaccharides, galactose and xylose, in red algae showed antioxidant activity. Antioxidants help with anti-aging by neutralizing free-radical molecules. Free-radical molecules may damage your skin cells and DNA. Galactose is also a PHA.

Corallina Officinalis is structurally similar to coral due to its high calcium content.

Learn more about Corallina Officinalis Extract

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 21.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 12.

12
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

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 24.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 5.

13
What it does: Skin Conditioning
Community Rating: Liked

You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.

Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.

3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.

Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.

The optimum pH range for this ingredient is 4 - 5.5

Learn more about 3-O-Ethyl Ascorbic Acid

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 25.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 25.

14
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

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 27.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 34.

15
What it does: Skin Conditioning, Skin Protecting, Soothing
Community Rating: Loved

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

Some studies have shown this ingredient can promote wound healing with higher concentrations.

Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.

Learn more about Allantoin

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 31.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 33.

16
What it does: Humectant, Skin Conditioning
Community Rating: Liked

Dipotassium Glycyrrhizate comes from licorice root.

Extracts of licorice have demonstrated to have antibacterial, anti‐inflammatory, antiviral, antioxidant properties.

One component, glabridin, has extra potent antioxidant and soothing properties. It has also been found to block pigmentation from UVB rays in guinea pigs.

Licorice Root also contains a flavonoid. Flavonoids are a natural substance from in plants. Flavonoids also have antioxidant properties.

Another component, glycyrrhizin, has been found to have anti-inflammatory and antimicrobial benefits. This may make licorice root extract effective at treating acne. However, more research is needed to support this.

Liquiritin is one of the flavone compounds found in licorice. It has been found to help lighten skin by preventing tyrosinase from reacting with tyrosine. When the two react, protein is converted to melanin. Melanin is the substance in your body that gives your features pigmentation.

Licorice root is native to Southern Europe and Asia. It has been used in traditional Chinese medicine to help with respiratory issues.

Learn more about Dipotassium Glycyrrhizate

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 35.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 28.

17
What it does: Antioxidant, Buffering, Masking, Skin Conditioning
Community Rating: Loved

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.

Remember: Vitamin C should not replace sunscreen!

Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.

Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Learn more about Ascorbic Acid

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 37.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 24.

18
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

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 38.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 23.

19
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.

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 45.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 32.

20
What it does:
Community Rating: Disliked

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA

Numbuzin No.5 Vitamin Concentrated Serum contains this as ingredient number 47.

Numbuzin No. 5 Goodbye Blemish Serum contains this as ingredient number 37.

Here's what our community thinks of the ingredients in these two products.

72% are loved or liked
11% have mixed ratings
13% are disliked or very disliked
4% have no rating yet
62% are loved or liked
10% have mixed ratings
23% are disliked or very disliked
5% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Numbuzin No.5 Vitamin Concentrated Serum 47 ingredients

5.0 /5
from 4 ratings
Absorbs Well (1) Great Value (1) Hydrating (1) No Scent (1) Works Well (1)
Butter's avatar

Butter

5 months ago · Sensitive Skin
Review

The best brightening serum ever!
This serum contains 4% tranexamic acid, 5% niacinamide, 5% Panthenol, and 60% Vaccinium Vitis-Idaea,...

The best brightening serum ever!
This serum contains 4% tranexamic acid, 5% niacinamide, 5% Panthenol, and 60% Vaccinium Vitis-Idaea, Alpha-albutin, bisabolol and more! So many goodies all at a good concentration that is effective but not irritating (you don't need 10% niacinamide!!!) it's a perfect addition to my morning routine and I will definitely be repurchasing. It's very effective and works quickly at brightening. It's also not massively expensive, I payed about £16/$19 + a discount (so it was slightly less than this). Numbuzins products are killing it lately with this product, the new sunscreen and the matching toner it's quickly becoming one of my favourite brands!

Numbuzin No. 5 Goodbye Blemish Serum 39 ingredients

4.1 /5
from 12 ratings
Absorbs Well (1) Expensive (1) Irritating (1)
SkylerMikalson's avatar

SkylerMikalson

4 months ago · Sensitive Skin
Review

I was not very knowledgable about skincare when I first tried this product, so I can't fault it for that, but I have to say it was extremely...

I was not very knowledgable about skincare when I first tried this product, so I can't fault it for that, but I have to say it was extremely irritating for me.

If you're new to skincare and are looking for something for acne, I do not think you should start with this.

I'm honestly not sure what is in this that is supposed to treat acne besides Niacinamide, which I've come to suspect my skin may not like in any amount anyway - I think it irritates me and causes flakiness.

And on top of the potentially irritating niacinamide, it has ascorbic acid, which is crazy given that Numbuzin is not marketing this as a vitamin C serum whatsoever. Vitamin C is a good ingredient for some people, but it doesn't treat acne, and ascorbic acid is the most irritating form of it. Why is it in here??

AND it has three essential oils in it! For what? Again, essential oils are irritants and, as far as I know do not treat acne.

So, why would you put highly irritating ingredients that do not treat acne in a product that is marketed as an acne treatment? If anything, those will only worsen acne, as irritated skin tends to be more acne prone.

I don't know, maybe I'm missing something, given that this product is so highly rated otherwise, but I just wouldn't recommend it to anyone, personally.

rainbowfish's avatar

rainbowfish

5 months ago · Normal Skin
Review

this clears up dark spots and acne scars so well!

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