numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml / 1.01 fl oz)

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Exfoliants

numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml / 1.01 fl oz)

Recorded ingredients include Glycolic Acid, Niacinamide and Panthenol. View details

Size

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Formula highlights

6 key ingredients · AHA exfoliant, Vitamin B3, Pro-vitamin B5, Hyaluronic Acid (salt form), Hyaluronic Acid, Urea
Contains Glycolic Acid, which can increase sun sensitivity. Use sunscreen during the day. · From the decoded label.
Label limits · Part of the ingredient list or its source is unconfirmed. Free-of and vegan status are not established.

Recorded ingredient list

40 matched ingredients in their recorded label order. This table does not establish ingredient concentrations or product performance.

Formula roles describe ingredient functions, not tested results from this product. Reviewed benefits, when available, appear with their scope and sources under Why · reviewed evidence.

Ingredient function groups

Softening34 of 40
Texture & base19 of 40
Hydration10 of 40
Scent-related6 of 40
Cleansing2 of 40
Preservation1 of 40

CosIng groups may overlap; counts alone cannot establish formula purpose, added perfume, concentration or performance.

#INCI nameFunctionFound inFor you

Water

물

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Formula role: leaves skin feeling smoother or better cared for; dissolves other ingredients so they blend into the formula

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Skin conditioningFound in 3,697

Glycerin

글리세린

Why · reviewed evidence

Helps support skin hydration.

Scope: A cream containing 20% glycerin improved measured hydration in a controlled ten-day study of seventeen healthy volunteers.

Limitations: The study did not demonstrate improved water-loss measurements or resistance to irritation. Results do not establish this product’s performance.

Evidence: limited · One small human trial; abstract checked. Author affiliation: ACO Hud AB. Funding details unconfirmed.

Lodén & Wessman (2001): glycerin cream study

Ingredient research; not regulatory approval · Cosmetic copy approved 2026-10-16 · No named expert review

Formula role: draws moisture into the skin; leaves skin feeling smoother or better cared for

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HumectantFound in 5,524

AHA exfoliant

Glycolic Acid · 글라이콜릭애씨드

Baby use — caution

Why · reviewed evidence

Helps improve the appearance of uneven skin tone.

Scope: A cream with 5% unneutralized glycolic acid improved skin discoloration compared with placebo in a three-month facial and neck study that recruited seventy-five volunteers.

Limitations: The wrinkle result was not statistically significant. Findings do not establish results for other concentrations, formulations or rinse-off products.

Evidence: limited · One randomized trial; abstract checked. Authors listed an Australian cosmetic medical center; funding unconfirmed.

Thibault et al. (1998): 5% glycolic acid study

Ingredient research; not regulatory approval · Cosmetic copy approved 2026-10-16 · No named expert review

Helps improve the look of uneven skin texture.

Scope: A cream with 5% unneutralized glycolic acid improved skin texture compared with placebo in a three-month facial and neck study that recruited seventy-five volunteers.

Limitations: The wrinkle result was not statistically significant. Findings do not establish results for other concentrations, formulations or rinse-off products.

Evidence: limited · One randomized trial; abstract checked. Authors listed an Australian cosmetic medical center; funding unconfirmed.

Thibault et al. (1998): 5% glycolic acid study

Ingredient research; not regulatory approval · Cosmetic copy approved 2026-10-16 · No named expert review

Formula role: keeps a formula's pH steady

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BufferingFound in 168

Butylene Glycol

부틸렌글라이콜

More info

Formula role: draws moisture into the skin; leaves skin feeling smoother or better cared for

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HumectantFound in 3,852

Gluconolactone

글루코노락톤

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Formula role: leaves skin feeling smoother or better cared for; binds trace metals that could destabilize a formula

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Skin conditioningFound in 416

Betaine

베타인

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Formula role: draws moisture into the skin; leaves skin feeling smoother or better cared for

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HumectantFound in 1,081

Dipropylene Glycol

다이프로필렌글라이콜

Baby use — caution

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Formula role: adds scent; dissolves other ingredients so they blend into the formula

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FragranceFound in 1,490

Vitamin B3

Niacinamide · 나이아신아마이드

Why · reviewed evidence

Helps soften the appearance of fine lines and wrinkles.

Scope: A formulation with 5% niacinamide improved the appearance of fine lines and wrinkles in a controlled twelve-week study of fifty white women with photoaged skin, using it twice daily.

Limitations: One population and formulation; this does not establish results at an unknown concentration or in this product.

Evidence: limited · Split-face controlled trial; abstract checked. Authors affiliated with Procter & Gamble; funding details unconfirmed.

Bissett et al. (2005): niacinamide facial study

Ingredient research; not regulatory approval · Cosmetic copy approved 2026-10-16 · No named expert review

Helps improve the look of dark spots.

Scope: A formulation with 5% niacinamide improved the appearance of dark spots in a controlled twelve-week study of fifty white women with photoaged skin, using it twice daily.

Limitations: One population and formulation; this does not establish results at an unknown concentration or in this product.

Evidence: limited · Split-face controlled trial; abstract checked. Authors affiliated with Procter & Gamble; funding details unconfirmed.

Bissett et al. (2005): niacinamide facial study

Ingredient research; not regulatory approval · Cosmetic copy approved 2026-10-16 · No named expert review

Formula role: helps skin or hair feel smoother

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SmoothingFound in 2,219

Pro-vitamin B5

Panthenol · 판테놀

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Formula role: leaves skin feeling smoother or better cared for; leaves hair feeling smoother and easier to manage

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Skin conditioningFound in 2,624

Pentylene Glycol

펜틸렌글라이콜

More info

Formula role: leaves skin feeling smoother or better cared for; dissolves other ingredients so they blend into the formula

Open Pentylene Glycol record →

Skin conditioningFound in 1,375

Matched ingredients are listed in their recorded order. Found in counts the products in our catalogue that list the same ingredient. Unmatched entries and ingredient concentrations are not shown in this table.

Where this came from

Label: Captured
Parsed: 40 of 41 listed
Explained: 40 of 40 in plain words

We have not confirmed a source that matches this recorded ingredient list. Source, market and check date are unconfirmed. Check the label on your package before relying on an ingredient being absent.

Research view →

Safety & cautions

Concentration and exposure have not been verified for this product. Ingredient order does not establish a percentage.

Breastfeeding assessment

Breastfeeding has not been assessed separately in this database. Pregnancy results do not answer that question.

No pregnancy or fragrance-allergen caution matched in this panel. Other contexts, including fungal acne and baby use, are shown on individual ingredient rows. An absent flag is not a safety clearance.

Recorded ingredient list

40 matched ingredients in their recorded label order. This table does not establish ingredient concentrations or product performance.

Formula roles describe ingredient functions, not tested results from this product. Reviewed benefits, when available, appear with their scope and sources under Why · reviewed evidence.