Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum Versus Tirtir PHA 15% Serum
Updated on April 14, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 8 ingredients in common
Cool Features
They both contain AHA and PHA
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, common allergens, fragrances, parabens or sulfates
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
Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum 41 ingredients
Tirtir PHA 15% Serum 26 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum 41 ingredients
Tirtir PHA 15% Serum 26 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Glycolic Acid 3.01%
Buffering
Butylene Glycol
Humectant
Gluconolactone 3%
Skin Conditioning
Betaine
Humectant
Dipropylene Glycol
HumectantNiacinamide
Smoothing
Panthenol 2%
Skin Conditioning
Pentylene Glycol
Skin ConditioningSodium Hydroxide
BufferingSphingomonas Ferment Extract
Skin Conditioning
Sodium Hyaluronate
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Hyaluronic Acid
Humectant
Diphenyl Dimethicone
Emollient
Triethylhexanoin
MaskingHydroxyethyl Urea
Humectant
Hydroxyethylcellulose
Emulsion StabilisingPolyglyceryl-10 Laurate
Skin Conditioning
Hydrogenated Lecithin
Emulsifying
Caprylic/Capric Triglyceride
Masking
Ethylhexylglycerin
Skin Conditioning1,2-Hexanediol
Skin Conditioning
Propanediol
Solvent
Urea 0.05%
Buffering
Adenosine
Skin Conditioning
Sodium Hyaluronate Crosspolymer
Humectant
Hydrolyzed Glycosaminoglycans
HumectantCeramide NP 0.01%
Skin Conditioning
Benzyl Glycol
SolventBeta-Glucan
Skin Conditioning
Tocopherol
Antioxidant
Stearic Acid
Cleansing
Ceramide Ns
Skin Conditioning
Cholesterol
Emollient
Phytosphingosine
Skin Conditioning
Ceramide AP
Skin Conditioning
Ceramide As
Skin Conditioning
Ceramide EOP
Skin Conditioning
Cetearyl Alcohol
Emollient
Water, Glycerin, Glycolic Acid 3.01%, Butylene Glycol, Gluconolactone 3%, Betaine, Dipropylene Glycol, Niacinamide, Panthenol 2%, Pentylene Glycol, Sodium Hydroxide, Sphingomonas Ferment Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Diphenyl Dimethicone, Triethylhexanoin, Hydroxyethyl Urea, Hydroxyethylcellulose, Polyglyceryl-10 Laurate, Hydrogenated Lecithin, Caprylic/Capric Triglyceride, Ethylhexylglycerin, 1,2-Hexanediol, Propanediol, Urea 0.05%, Adenosine, Sodium Hyaluronate Crosspolymer, Hydrolyzed Glycosaminoglycans, Ceramide NP 0.01%, Benzyl Glycol, Beta-Glucan, Tocopherol, Stearic Acid, Ceramide Ns, Cholesterol, Phytosphingosine, Ceramide AP, Ceramide As, Ceramide EOP, Cetearyl Alcohol
Water
Skin ConditioningGluconolactone
Skin Conditioning
C9-12 Alkane
SolventPropanediol
Solvent
Butylene Glycol
Humectant
1,2-Hexanediol
Skin Conditioning
Tromethamine
BufferingSodium Hydroxide
BufferingSodium Citrate
BufferingCitric Acid
Buffering
Ethylhexylglycerin
Skin ConditioningVaccinium Myrtillus Fruit Extract
Skin ConditioningAdenosine
Skin Conditioning
Disodium EDTA
Saccharum Officinarum Extract
MoisturisingSqualane
Emollient
Citrus Aurantium Dulcis Fruit Extract
MaskingCitrus Limon Fruit Extract
Masking
Acer Saccharum Extract
Skin ConditioningDioscorea Japonica Root Extract
Skin ConditioningCorchorus Olitorius Leaf Extract
Skin ConditioningNelumbo Nucifera Root Extract
Skin ConditioningHibiscus Esculentus Fruit Extract
Skin ConditioningAngelica Keiskei Extract
Antioxidant
Capryloyl Salicylic Acid
Exfoliating
Hippophae Rhamnoides Fruit Oil
Skin Protecting
Water, Gluconolactone, C9-12 Alkane, Propanediol, Butylene Glycol, 1,2-Hexanediol, Tromethamine, Sodium Hydroxide, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Vaccinium Myrtillus Fruit Extract, Adenosine, Disodium EDTA, Saccharum Officinarum Extract, Squalane, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Acer Saccharum Extract, Dioscorea Japonica Root Extract, Corchorus Olitorius Leaf Extract, Nelumbo Nucifera Root Extract, Hibiscus Esculentus Fruit Extract, Angelica Keiskei Extract, Capryloyl Salicylic Acid, Hippophae Rhamnoides Fruit Oil
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.Â
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesÂ
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 AdenosineButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene 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.
Gluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs.
When applied, Gluconolactone has the same affect on skin as AHAs such as lactic acid. It helps dissolve the dead skin cells in the top layer of your skin. This improves texture and brightens the skin.
PHAs are more gentle than AHAs due to their larger structure. They do not penetrate as deeply as AHAs and take a longer time to dissolve dead cells. Studies show PHAs do not cause as much irritation.
Gluconolactone has some interesting properties:
In a 2004 study, Gluconolactone was found to prevent UV damage in mouse skin cells and has not been found to increase sun sensitivity. However, we still recommend wearing SPF daily.
This ingredient is is an created by reacting gluconic acid with an alcohol.
Learn more about GluconolactonePropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideWater. 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 WaterIngredient Ratings
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