numbuzin No. 9 Secret Firming Serum

numbuzin No. 9 Secret Firming Serum

Efficacy100/100IrritancyHigh

Works for

Anti-aging
Niacinamide, Palmitoyl tripeptide-5 + 3 more
Works well
What the product description says
“Numbuzin No.9 Secret Firming Serum is infused with 2 types of peptides which restores skin elasticity and increase the firmness of sagging skin effectively.”
Source: Lila Beauty

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine, niacinamide.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: acetyl hexapeptide-8, palmitoyl tripeptide-5.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.6–2.4%
Palmitoyl tripeptide-5Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.35–0.8%
Acetyl hexapeptide-8Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.3–0.75%
AdenosineKey activeEffect: HighMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.6%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~1–1.6%
Moisturizing
Niacinamide, Palmitoyl tripeptide-5 + 17 more
Works well
What the product description says
“Helps reduce the signs of aging, leaving a plumped complexion.”
Source: Lila Beauty

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, hydrolyzed hyaluronic acid.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: butyrospermum parkii butter, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl hexapeptide-8, niacinamide, palmitoyl tripeptide-5

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.6–2.4%
Palmitoyl tripeptide-5HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.35–0.8%
Acetyl hexapeptide-8Hero· HumectantEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.3–0.75%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4–6.1%
Hydrogenated poly(c6-14 olefin)Key active· EmollientEffect: MediumHelps soften the upper layer of the skin and create a nice product texture~3.6–5.4%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~1.4–2.1%
Butyrospermum parkii butterKey active· Emollient, OcclusiveEffect: HighA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~1–1.6%
Hydrogenated vegetable oilKey active· EmollientEffect: MediumAn oil from a mixture of different vegetables. Helps soften the upper layer of the skin~0.85–1.25%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.4–0.9%
AdenosineKey activeEffect: MediumMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.6%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~0.15–0.6%
Pentaerythrityl tetraethylhexanoate· EmollientEffect: LowUsed to create a nice product consistency while softening the upper layer of the skin~2.1–3.1%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~1.2–1.8%
Palmitic acid· EmollientEffect: LowAn emollient that is naturally present in skin and helps soften it~0.15–0.6%
Glyceryl caprylate· EmollientEffect: LowAn emollient that can also help water and oil mix together, as well as prevent bacteria growth in products~0.15–0.55%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~0.15–0.65%
Glyceryl stearate citrate· EmollientEffect: LowHelps oil and water mix together while softening the upper layer of the skin~0.15–0.7%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.1–0.5%
Stearic acidEffect: Low, below effective doseHelps oil and water mix together and works as an emollient~0.2–0.7%
Evens skin tone
Side benefit · Niacinamide
Works well

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.6–2.4%
Anti-blemish
Side benefit · Niacinamide
Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.6–2.4%

Can it cause trouble?

Irritancy
5 strong irritants: Lavandula angustifolia oil, Citrus aurantium dulcis peel oil + 3 more — patch-test recommended
High risk
We flagged 10 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Lavandula angustifolia oilAn essential oil. Potential allergen and can be irritating. It has some anti-bacterial propertiesHigh~0.2–0.8%est.
Citrus aurantium dulcis peel oilAn essentil oil from orange peel. Potential allergen and can be irritatingHigh~0.2–0.8%est.
Rosmarinus officinalis leaf oilA plant oil with high content of volatile compounds that can irritate the skin. Can be used as a fragrance. Has anti-bacterial properties and might help neutralize free radicals on the surface of the skinHigh~0.2–0.75%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.1%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.01–0.05%est.
Polyglyceryl-3 methylglucose distearateHelps water and oil mix togetherMedium~0.15–0.6%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.1–0.5%est.
1,2-hexanediolA preservativeMedium~0.05–0.3%est.
EthylhexylglycerinA preservativeMedium~0.1–0.3%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.25%est.
Comedogenic
3 ingredients rated 2 or more on the 0–5 pore-clogging scale
3 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Butyrospermum parkii butterA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals3/5~1–1.6%est.
Hydrogenated vegetable oilAn oil from a mixture of different vegetables. Helps soften the upper layer of the skin2/5~0.85–1.25%est.
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~0.15–0.6%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4–6.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Hydrogenated poly(c6-14 olefin)~3.6–5.4%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and create a nice product texture

More about Hydrogenated poly(c6-14 olefin)
Propanediol~2.6–4%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Pentaerythrityl tetraethylhexanoate~2.1–3.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product consistency while softening the upper layer of the skin

More about Pentaerythrityl tetraethylhexanoate
Niacinamide~1.6–2.4%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Anti-agingEvens skin toneAnti-blemishMoisturizingReduces irritationAntibacterialAnti-inflammatoryReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Dimethicone~1.4–2.1%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
Butylene glycol~1.2–1.8%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Butyrospermum parkii butter~1–1.6%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-aging

A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals

More about Butyrospermum parkii butter
Hydrogenated vegetable oil~0.85–1.25%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
Moisturizing

An oil from a mixture of different vegetables. Helps soften the upper layer of the skin

More about Hydrogenated vegetable oil
Hydroxypropyltrimonium hyaluronate~0.5–1.2%
Formula
Hydrolyzed hyaluronic acid~0.4–0.9%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Palmitoyl tripeptide-5~0.35–0.8%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl tripeptide-5
Acetyl hexapeptide-8~0.3–0.75%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Acetyl hexapeptide-8
Lavandula angustifolia oil~0.2–0.8%
Irritant · high
Irritation risk
High

An essential oil. Potential allergen and can be irritating. It has some anti-bacterial properties

More about Lavandula angustifolia oil
Citrus aurantium dulcis peel oil~0.2–0.8%
Irritant · high
Irritation risk
High

An essentil oil from orange peel. Potential allergen and can be irritating

More about Citrus aurantium dulcis peel oil
Rosmarinus officinalis leaf oil~0.2–0.75%
Irritant · high
Irritation risk
High
Works for
AntibacterialAnti-oxidation

A plant oil with high content of volatile compounds that can irritate the skin. Can be used as a fragrance. Has anti-bacterial properties and might help neutralize free radicals on the surface of the skin

More about Rosmarinus officinalis leaf oil
Cedrus atlantica bark oil~0.15–0.65%
Formula
Adenosine~0.15–0.6%
Key active
Irritation risk
Low
Works for
Anti-agingMoisturizingAnti-oxidation

Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)

More about Adenosine
Glyceryl stearate citrate~0.15–0.7%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together while softening the upper layer of the skin

More about Glyceryl stearate citrate
Polyglyceryl-3 methylglucose distearate~0.15–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Polyglyceryl-3 methylglucose distearate
Glyceryl stearate~0.15–0.65%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate
Cetearyl alcohol~0.15–0.6%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Palmitic acid~0.15–0.6%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that is naturally present in skin and helps soften it

More about Palmitic acid
Stearic acid~0.2–0.7%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Dimethicone/vinyl dimethicone crosspolymer~0.1–0.5%
Formula
Irritation risk
Low

Used to stabilize product formulations and create a nice product texture

More about Dimethicone/vinyl dimethicone crosspolymer
Glyceryl caprylate~0.15–0.55%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products

More about Glyceryl caprylate
Sodium polyacrylate~0.15–0.55%
Formula
Irritation risk
Low
Works for
Mattifying

Used to create a gel-like product texture, as well as to stabilize emulsions

More about Sodium polyacrylate
Xanthan gum~0.1–0.45%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Caprylyl glycol~0.1–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
1,2-hexanediol~0.05–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Ethylhexylglycerin~0.1–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Disodium edta~0.05–0.25%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Carbomer~0.05–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Tromethamine~0.05–0.2%
Formula
Irritation risk
Low

Helps adjust pH in products

More about Tromethamine
Linalool~0.05–0.1%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Limonene~0.01–0.05%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Ingredient list view

Water, Glycerin, Hydrogenated poly(c6-14 olefin), 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

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
numbuzinNo. 9 Secret Firming SerumYOUR PRODUCTArenciaNAD+ Booster ShotFarm StayBlack Snail & Peptide9 Perfect SerumMEDI-PEELPeptide 9 Aqua Essence Lifting Ampoule
Match—94%91%90%
Price—$22.00$20.50$13.28
Shared key ingredients—7 of 97 of 96 of 9
Key difference—Acetyl Tetrapeptide-5Oligopeptide-32Acetyl Octapeptide-3
Irritancy High Medium Medium Medium
Drying alcohol————
View product Shop Shop Shop

More alternatives: Mizon 7 Vegan Peptide Booster SerumHanskin Collagen Peptide Hydra Ampoule

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Product summary

"numbuzin - No. 9 Secret Firming Serum" is effective for: Anti-aging, Evens skin tone, Moisturizing and Anti-blemish

Ingredient callouts

  • A good concentration of Niacinamide (1.60% - 2.40%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
  • Peptides (acetyl hexapeptide-8 0.30% - 0.75% and palmitoyl tripeptide-5 0.35% - 0.80%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. They might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
  • Adenosine 0.15% - 0.60%. It is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical Adenosine in low concentrations can somewhat help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).
  • Humectants (acetyl hexapeptide-8 0.30% - 0.75%, hydrolyzed hyaluronic acid 0.40% - 0.90% and glycerin 4.00% - 6.10%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails from 31.00A$ up to 65.00A$ in Australia and from 19.60$ up to 28.00$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 17 studies and safety reviews.

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numbuzin No. 9 Secret Firming Serum
numbuzinNo. 9 Secret Firming Serum

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As an Amazon Associate, WIMJ earns from qualifying purchases.