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numbuzin No. 4 Ceramide AHA Glazed Skin Prep Serum 10ml (1ml*10ea) - numbuzin No. 4 Ceramide AHA Glazed Skin Prep Serum 10ml (1ml*10ea)

$28.84

Why we love it

Helps with moisture layering to hydrate crumbly skin, and provides perfectly smooth texture to both outer and inner part of skin. Completed low skin irritation test and certification for carefree use. Provides perfectly smooth skin boosting by dissolving outer dead skin cells and moisturizing crumbly skin to give flawless skin texture.

Featured ingredients

Contains 2% panthenol to protect skin barrier and 5 types of ceramides to strengthen skin barrier. Contains 3% AHA to help remove dead skin cells on skin surface, and 3% PHA to remove invisible dead skin cells.

How to use

Apply an appropriate amount and distribute gently along the skin's contour, then pat lightly to aid absorption. * Due to the high concentration of active ingredients, we recommend using sunscreen when applying during the day. * Due to its high concentration of acidic ingredients, exposure to heat or sunlight may cause discoloration, but this does not affect the product’s quality.

More Info

Improvement of inner dead
skin cells (thin keratin)
Improvement of outer dead
skin cells (thick keratin)
Before use
Immediately after use
Before use
30 minutes after use
Dissolves outer dead skin
cells and hydrates rough skin
without flakiness
Smooth glazing
Improves skin texture
After 2 weeks of use
*Human application test completed for NUMBUZIN Cera Peel Egg Serum, confirming
improvement in 10 layers of keratin hydration and more. P&K Skin Clinical
Research Center | 2025.04.07 ~ 2025.04.22 | 21 adult women aged 20–59.
*Individual results may vary.
Smart Texture Care
Uncompromised Moisture
Barrier Cera Peel
5 Types of
Ceramides
Panthenol 2%
101% Stronger Skin Barrier
Even with Daily Texture Care!
Damaged Skin Barrier
After 2 Weeks of Using Cera Peel Serum
*Damaged skin barrier test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
Absorbs quickly into the skin
without leaving residue
NUMBUZIN's #Uniquely
Smooth Texture
Achieve smooth, egg-like skin!
Certified Low-Irritation
for Safe Use
*Primary skin irritation test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.03.26 ~ 2025.04.18, 35 adult
men and women aged 20–55) *Results may vary by individual
A new dimension of
skin boosting for a
smooth complexion
Before use
Boosting effect enhances
makeup longevity!
Before makeup
After Ceraphil
Serum +
makeup
12 hours after
makeup
Smooth Egg-Skin Serum
NUMBUZIN Cera Fill Egg-Skin Serum
Deeply hydrates
as if drenched in
syrup, relieving
inner dryness
Adheres to flaky dead
skin like a glue stick
*Roughness improvement test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20-59) *Results may vary by individual
A flawless, egg-smooth
recipe with no flakiness
Syrup texture
Barrier protection
Panthenol
Barrier sticker
5 Types of
Ceramides
Surface Dead
Skin Cell Care
Hidden Dead
Skin Cell Care
*Limited to the raw material properties
of (Panthenol, Ceramide, AHA, PHA)
Moisture Layering That Deeply
Hydrates Dry, Dull Skin
Improves Moisture
in 10 Layers
of Dead Skin
Cells*
Smoothness Without Flakiness,
From Surface to Deep Within
Smooth Texture Maintained
All Day Without
Dead Skin Flaking
*Skin absorption test completed for NUMBUZIN Cera Peel Egg Serum (P&K
Skin Clinical Research Center | 2025.04.07 ~ 2025.04.25, 20 adult
women aged 20–59) *Results may vary by individual
*Makeup longevity test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
From Thick Dead Skin to Flaky,
Dull Skin: No.4 Egg-Smooth Duo
Effectively Removes
Thick Dead Skin Cells
NUMBUZIN No.4 Pad
Smooths Rough
Texture Without
Flakiness
NUMBUZIN No.4 Serum
Cera Peel Egg-Smooth Serum
NUMBUZIN No.4 Serum
Skin Irritation Index
Pore Zero Egg-Smooth Toner Pad

Brand Origin:
Isin:
IUILNIZO5TMO

$28.84

In Stock

, Fulfilled by IBSPOT • Ships from US

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  • Free 30-Day Returns
  • Full Refund for Damaged or Incorrect Items
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numbuzin No. 4 Ceramide AHA Glazed Skin Prep Serum 10ml (1ml*10ea) - numbuzin No. 4 Ceramide AHA Glazed Skin Prep Serum 10ml (1ml*10ea)

numbuzin No. 4 Ceramide AHA Glazed Skin Prep Serum 10ml (1ml*10ea) - numbuzin...

$28.84

Why we love it

Helps with moisture layering to hydrate crumbly skin, and provides perfectly smooth texture to both outer and inner part of skin. Completed low skin irritation test and certification for carefree use. Provides perfectly smooth skin boosting by dissolving outer dead skin cells and moisturizing crumbly skin to give flawless skin texture.

Featured ingredients

Contains 2% panthenol to protect skin barrier and 5 types of ceramides to strengthen skin barrier. Contains 3% AHA to help remove dead skin cells on skin surface, and 3% PHA to remove invisible dead skin cells.

How to use

Apply an appropriate amount and distribute gently along the skin's contour, then pat lightly to aid absorption. * Due to the high concentration of active ingredients, we recommend using sunscreen when applying during the day. * Due to its high concentration of acidic ingredients, exposure to heat or sunlight may cause discoloration, but this does not affect the product’s quality.

More Info

Improvement of inner dead
skin cells (thin keratin)
Improvement of outer dead
skin cells (thick keratin)
Before use
Immediately after use
Before use
30 minutes after use
Dissolves outer dead skin
cells and hydrates rough skin
without flakiness
Smooth glazing
Improves skin texture
After 2 weeks of use
*Human application test completed for NUMBUZIN Cera Peel Egg Serum, confirming
improvement in 10 layers of keratin hydration and more. P&K Skin Clinical
Research Center | 2025.04.07 ~ 2025.04.22 | 21 adult women aged 20–59.
*Individual results may vary.
Smart Texture Care
Uncompromised Moisture
Barrier Cera Peel
5 Types of
Ceramides
Panthenol 2%
101% Stronger Skin Barrier
Even with Daily Texture Care!
Damaged Skin Barrier
After 2 Weeks of Using Cera Peel Serum
*Damaged skin barrier test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
Absorbs quickly into the skin
without leaving residue
NUMBUZIN's #Uniquely
Smooth Texture
Achieve smooth, egg-like skin!
Certified Low-Irritation
for Safe Use
*Primary skin irritation test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.03.26 ~ 2025.04.18, 35 adult
men and women aged 20–55) *Results may vary by individual
A new dimension of
skin boosting for a
smooth complexion
Before use
Boosting effect enhances
makeup longevity!
Before makeup
After Ceraphil
Serum +
makeup
12 hours after
makeup
Smooth Egg-Skin Serum
NUMBUZIN Cera Fill Egg-Skin Serum
Deeply hydrates
as if drenched in
syrup, relieving
inner dryness
Adheres to flaky dead
skin like a glue stick
*Roughness improvement test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20-59) *Results may vary by individual
A flawless, egg-smooth
recipe with no flakiness
Syrup texture
Barrier protection
Panthenol
Barrier sticker
5 Types of
Ceramides
Surface Dead
Skin Cell Care
Hidden Dead
Skin Cell Care
*Limited to the raw material properties
of (Panthenol, Ceramide, AHA, PHA)
Moisture Layering That Deeply
Hydrates Dry, Dull Skin
Improves Moisture
in 10 Layers
of Dead Skin
Cells*
Smoothness Without Flakiness,
From Surface to Deep Within
Smooth Texture Maintained
All Day Without
Dead Skin Flaking
*Skin absorption test completed for NUMBUZIN Cera Peel Egg Serum (P&K
Skin Clinical Research Center | 2025.04.07 ~ 2025.04.25, 20 adult
women aged 20–59) *Results may vary by individual
*Makeup longevity test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
From Thick Dead Skin to Flaky,
Dull Skin: No.4 Egg-Smooth Duo
Effectively Removes
Thick Dead Skin Cells
NUMBUZIN No.4 Pad
Smooths Rough
Texture Without
Flakiness
NUMBUZIN No.4 Serum
Cera Peel Egg-Smooth Serum
NUMBUZIN No.4 Serum
Skin Irritation Index
Pore Zero Egg-Smooth Toner Pad

Brand Origin:
Isin:
IUILNIZO5TMO

Why we love it

Helps with moisture layering to hydrate crumbly skin, and provides perfectly smooth texture to both outer and inner part of skin. Completed low skin irritation test and certification for carefree use. Provides perfectly smooth skin boosting by dissolving outer dead skin cells and moisturizing crumbly skin to give flawless skin texture.

Featured ingredients

Contains 2% panthenol to protect skin barrier and 5 types of ceramides to strengthen skin barrier. Contains 3% AHA to help remove dead skin cells on skin surface, and 3% PHA to remove invisible dead skin cells.

How to use

Apply an appropriate amount and distribute gently along the skin's contour, then pat lightly to aid absorption. * Due to the high concentration of active ingredients, we recommend using sunscreen when applying during the day. * Due to its high concentration of acidic ingredients, exposure to heat or sunlight may cause discoloration, but this does not affect the product’s quality.

More Info

Improvement of inner dead
skin cells (thin keratin)
Improvement of outer dead
skin cells (thick keratin)
Before use
Immediately after use
Before use
30 minutes after use
Dissolves outer dead skin
cells and hydrates rough skin
without flakiness
Smooth glazing
Improves skin texture
After 2 weeks of use
*Human application test completed for NUMBUZIN Cera Peel Egg Serum, confirming
improvement in 10 layers of keratin hydration and more. P&K Skin Clinical
Research Center | 2025.04.07 ~ 2025.04.22 | 21 adult women aged 20–59.
*Individual results may vary.
Smart Texture Care
Uncompromised Moisture
Barrier Cera Peel
5 Types of
Ceramides
Panthenol 2%
101% Stronger Skin Barrier
Even with Daily Texture Care!
Damaged Skin Barrier
After 2 Weeks of Using Cera Peel Serum
*Damaged skin barrier test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
Absorbs quickly into the skin
without leaving residue
NUMBUZIN's #Uniquely
Smooth Texture
Achieve smooth, egg-like skin!
Certified Low-Irritation
for Safe Use
*Primary skin irritation test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.03.26 ~ 2025.04.18, 35 adult
men and women aged 20–55) *Results may vary by individual
A new dimension of
skin boosting for a
smooth complexion
Before use
Boosting effect enhances
makeup longevity!
Before makeup
After Ceraphil
Serum +
makeup
12 hours after
makeup
Smooth Egg-Skin Serum
NUMBUZIN Cera Fill Egg-Skin Serum
Deeply hydrates
as if drenched in
syrup, relieving
inner dryness
Adheres to flaky dead
skin like a glue stick
*Roughness improvement test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20-59) *Results may vary by individual
A flawless, egg-smooth
recipe with no flakiness
Syrup texture
Barrier protection
Panthenol
Barrier sticker
5 Types of
Ceramides
Surface Dead
Skin Cell Care
Hidden Dead
Skin Cell Care
*Limited to the raw material properties
of (Panthenol, Ceramide, AHA, PHA)
Moisture Layering That Deeply
Hydrates Dry, Dull Skin
Improves Moisture
in 10 Layers
of Dead Skin
Cells*
Smoothness Without Flakiness,
From Surface to Deep Within
Smooth Texture Maintained
All Day Without
Dead Skin Flaking
*Skin absorption test completed for NUMBUZIN Cera Peel Egg Serum (P&K
Skin Clinical Research Center | 2025.04.07 ~ 2025.04.25, 20 adult
women aged 20–59) *Results may vary by individual
*Makeup longevity test completed for NUMBUZIN Cera Peel Egg Serum
(P&K Skin Clinical Research Center | 2025.04.07 ~ 2025.04.22, 21 adult
women aged 20–59) *Results may vary by individual
From Thick Dead Skin to Flaky,
Dull Skin: No.4 Egg-Smooth Duo
Effectively Removes
Thick Dead Skin Cells
NUMBUZIN No.4 Pad
Smooths Rough
Texture Without
Flakiness
NUMBUZIN No.4 Serum
Cera Peel Egg-Smooth Serum
NUMBUZIN No.4 Serum
Skin Irritation Index
Pore Zero Egg-Smooth Toner Pad
  • Content volume or weight: No. 4 Serum Miniature / 1.2ml*10ea
  • Ideal for: For all skin types
  • Expiration date (or expiration date after opening): 30 months after manufacture / 12 months after opening
  • How to Use: Apply an appropriate amount and distribute gently along the skin's contour, then pat lightly to aid absorption. * Due to the high concentration of active ingredients, we recommend using sunscreen when applying during the day. * Due to its high concentration of acidic ingredients, exposure to heat or sunlight may cause discoloration, but this does not affect the product’s quality.
  • Cosmetics manufacturers, cosmetics responsible distributors, and customized cosmetics sellers: COSMAX Co., Ltd. / Benow Co., Ltd.
  • Country of Manufacture: South Korea
  • Ingredients: 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 (0.15 ppb), Cholesterol, Phytosphingosine, Ceramide AP (0.05 ppb), Ceramide AS (0.05 ppb), Ceramide EOP (0.0001 ppb), Cetearyl Alcohol
  • MFDS Evaluation of Functional Cosmetics: Completion of functional cosmetics review (or report) according to the Cosmetics Act
  • Precautions when using: 1. Consult a specialist if you have abnormal symptoms or side effects such as a skin rash, swelling, or itchiness during use or from exposure to direct sunlight after use. 2. Do not use on wounds or other affected areas. 3. Cautions for Storage and Handling a) Keep out of reach of children. b) Keep away from direct sunlight. 4. Use a sunscreen as it may increase your skin’s sensitivity to sunlight. 5. Patch testing is advised before its first use.
  • Quality Assurance Standard: Compensation for defective products is provided according to the criteria for the settlement of consumer disputes notified publicly by the Fair Trade Commission.

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

Products may ship from:

  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.


Shipping Methods & Estimated Delivery

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $5.95 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.99 for the first item, $2.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

Free Shipping

We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 


Carriers

We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.


Import Duties & Taxes

All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.


Tracking & Notifications

Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.


Order Changes & Cancellations

If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com


Item Not Received

If your tracking number shows “Delivered” but you haven’t received your package:

  1. Check with your local USPS or UPS office.
  2. Confirm that the shipping address provided was correct.
  3. If the issue remains unresolved, contact support@ibspot.com for assistance.

Damaged or Lost Parcels

If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.


Customer Support

For any questions about shipping, tracking, or delivery, our customer support team is here to help.

Email: support@ibspot.com

We’re always happy to help.

Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.


Order Cancellation Policy

Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

How to Request a Cancellation

You can contact us through:

Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.


Return Policy

We accept returns for most items within 30 days of delivery for a full refund.

To be eligible for a return:

  • The item must be unused, in the same condition as received, and in its original packaging.
  • A tracking number must be provided to confirm the return shipment.

Non-Returnable Items

Certain products cannot be returned, including:

  • Perishable goods (for example, food, flowers, newspapers, magazines)
  • Intimate or sanitary goods
  • Hazardous materials or flammable liquids/gases
  • Gift cards
  • Downloadable software
  • Some health and personal care items

Partial Refunds (If Applicable)

Partial refunds may be granted in specific situations, such as:

  • Books with obvious signs of use
  • Opened CDs, DVDs, software, or vinyl records
  • Items not in their original condition, damaged, or missing parts not due to our error
  • Items returned more than 30 days after delivery

How to Return an Item

To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.


Shipping Cost for Returns

Please contact us before returning any item.

We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.

If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.

If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.


Refund Processing

Once your return is received and inspected:

  • In-store returns are refunded to the original form of payment or issued as a gift card.
  • Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.

Please allow:

  • 5–7 business days for the return to reach our Returns Center.
  • An additional 3–10 business days for your bank to post the refund to your account.

Damages, Issues & Claims

Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.

Product Claims

Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.


Exchanges

We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.


Return Address

IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States


Customer Support

Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
Contact Form: Contact Us page

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