numbuzin
No.4 Ceramide AHA Glazed Skin Prep Serum
No.4 Ceramide AHA Glazed Skin Prep Serum is a serum from numbuzin. Its official ingredient list includes Glycerin and Niacinamide. The brand lists 41 ingredients in this formula; each is explained below with its documented cosmetic functions.
- Routine step
- Serum
- Formula
- 41 listed ingredients
- Source version
- Official brand store
- Formula checked
- 7 October 2026
Inside the formula
A few ingredients worth getting to know, and the roles they play.
Ingredient roles do not establish how well the finished product works. Open a card for its explanation and sources.
Ingredients, decoded
The ingredient list below comes from the brand's formula listing. Open an explanation to see the evidence and things to keep in mind.
| On the label | What it does | The plain-English take |
|---|---|---|
| Water | Fragrance supportDissolving ingredients | Supports the perfume or flavour mixture in a formula. Helps other ingredients dissolve in the formula. |
| Glycerin | Moisture bindingSkin conditioningFragrance supportDissolving ingredientsTexture | |
| Glycolic Acid | pH control | Helps keep the formula's acidity at the intended level. |
| Butylene Glycol | Moisture bindingSkin conditioningFragrance supportDissolving ingredientsTexture | |
| Gluconolactone | Formula stabilitySkin conditioning | Binds metal ions that can interfere with the formula. Used to help keep skin in good condition. |
| Betaine | Moisture bindingSkin conditioningTexture | Attracts and holds water. Used to help keep skin in good condition. |
| Dipropylene Glycol | Fragrance supportDissolving ingredientsTexture | Supports the perfume or flavour mixture in a formula. Helps other ingredients dissolve in the formula. |
| Niacinamide | Smoothing | |
| Panthenol | Skin conditioningFragrance support | Used to help keep skin in good condition. Supports the perfume or flavour mixture in a formula. |
| Pentylene Glycol | Skin conditioningFragrance supportDissolving ingredients | Used to help keep skin in good condition. Supports the perfume or flavour mixture in a formula. |
| Sodium Hydroxide | pH controlAlcohol denaturingFragrance support | Helps keep the formula's acidity at the intended level. Makes an alcohol-containing formula unsuitable for drinking. |
| Diphenyl Dimethicone | Foam controlSkin conditioningSofteningMixing oil and water | Helps reduce foaming while a product is made or applied. Used to help keep skin in good condition. |
| Triethylhexanoin | ScentSkin conditioning | Adds or changes the product's scent. Used to help keep skin in good condition. |
| Hydroxyethyl Urea | Moisture bindingSkin conditioning | Attracts and holds water. Used to help keep skin in good condition. |
| Hydroxyethylcellulose | BindingFormula stabilityFilm formingFragrance supportLight stabilityTexture | Helps ingredients hold together. Helps an emulsion stay mixed. |
| Polyglyceryl-10 Laurate | Skin conditioning | Used to help keep skin in good condition. |
| Hydrogenated Lecithin | Mixing oil and waterSkin conditioning | Helps oil and water combine in a formula. Used to help keep skin in good condition. |
| Caprylic/Capric Triglyceride | Skin conditioningFragrance support | Used to help keep skin in good condition. Supports the perfume or flavour mixture in a formula. |
| Sphingomonas Ferment Extract | Formula stabilityFilm formingTexture | Helps an emulsion stay mixed. Leaves a thin film on a surface after application. |
| Ethylhexylglycerin | Skin conditioningOdour controlFragrance support | Used to help keep skin in good condition. Helps reduce or cover unwanted odour. |
| 1,2-Hexanediol | Skin conditioningFragrance supportDissolving ingredients | Used to help keep skin in good condition. Supports the perfume or flavour mixture in a formula. |
| Propanediol | Moisture bindingFragrance supportDissolving ingredientsTexture | Attracts and holds water. Supports the perfume or flavour mixture in a formula. |
| Urea | pH controlFragrance supportMoisture bindingSkin conditioning | Helps keep the formula's acidity at the intended level. Supports the perfume or flavour mixture in a formula. |
| Adenosine | Skin conditioning | Used to help keep skin in good condition. |
| Sodium Hyaluronate Crosspolymer | Moisture bindingSkin conditioning | Attracts and holds water. Used to help keep skin in good condition. |
| Sodium Hyaluronate | Moisture bindingSkin conditioning | |
| Hydrolyzed Glycosaminoglycans | Moisture bindingSkin conditioning | Attracts and holds water. Used to help keep skin in good condition. |
| Ceramide NP | Skin conditioning | |
| Benzyl Glycol | Dissolving ingredients | Helps other ingredients dissolve in the formula. |
| Beta-Glucan | Formula bodySkin conditioning | Adds bulk to a formula. Used to help keep skin in good condition. |
| Hydrolyzed Hyaluronic Acid | Moisture bindingSkin conditioning | |
| Tocopherol | Skin conditioningAntioxidantFragrance support | Used to help keep skin in good condition. Slows reactions involving oxygen, helping protect against oxidation. |
| Hyaluronic Acid | Moisture bindingMoisture supportSkin conditioning | |
| Cetearyl Alcohol | Formula stabilityFormula appearanceSofteningCleansingMixing oil and waterFoam supportTexture | Helps an emulsion stay mixed. Makes a formula less transparent. |
| Stearic Acid | CleansingFormula stabilityScentLipid supportMixing oil and water | Helps remove dirt and residue from the skin. Helps an emulsion stay mixed. |
| Ceramide NS | Skin conditioning | Used to help keep skin in good condition. |
| Cholesterol | Light stabilitySkin conditioningSofteningMixing oil and waterTexture | Helps protect the formula from changes caused by light. Used to help keep skin in good condition. |
| Phytosphingosine | Skin conditioning | Used to help keep skin in good condition. |
| Ceramide AP | Skin conditioning | |
| Ceramide AS | Skin conditioning | Used to help keep skin in good condition. |
| Ceramide EOP | Skin conditioning |
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Sources
- numbuzin: No.4 Ceramide AHA Glazed Skin Prep SerumChecked 2026-10-07T13:04:18.399988+00:00