How does the CERA‑HA complex differ from regular hyaluronic acid serums?

CERA-HA combines hyaluronic acid with ceramides to help retain moisture longer than hyaluronic acid alone. It supports sensitive skin's weakened barrier by boosting and sealing in hydration.

What kind of texture and finish does ATOBARRIER365 Hydro CERA-HA Serum have on skin?

This lightweight, fluid serum absorbs quickly without stickiness or greasiness. It leaves skin feeling hydrated, smooth, and comfortable, making it ideal for layering under moisturisers or sunscreen.

What’s the difference between a barrier repair serum and a barrier repair cream—when would you choose one over the other?

Skin tightness is often a sign that your skin needs more hydration, not just more moisture. Applying cream alone may not fully address the root cause of dryness. For best results, first replenish hydration with a toner or serum, then lock it in with a moisturizer. Barrier repair serums are designed to deliver hydration and barrier-supporting active ingredients in a lightweight format. Barrier repair creams are richer moisturisers that focuses on sealing in moisture and replenishing lipids.

I have dry skin and my skin feels irritated. Is it okay to use AESTURA products?

The ATOBARRIER365 line offers moisturizing solutions specifically designed for sensitive and dry skin. Generally, we recommend using ATOBARRIER365 products, which contain skin lipid ingredients such as ceramides that help strengthen the skin barrier, especially for skin with a damaged barrier. However, since we cannot assess the precise condition of your irritated skin, we suggest testing the product on a small area before full application.

What is the function of the skin barrier?

The skin barrier essentially functions as a 'wall.' Just like a wall separates and protects the interior from harmful external substances, the skin barrier separates and protects the inside of the skin from external threats. When the skin barrier is compromised, it becomes like a damaged wall, allowing harmful elements and irritants to into the skin while also resulting in the loss of internal moisture. This can lead to dryness and various other skin issues. Therefore, maintaining a strong skin barrier is the foundation of all skincare. The skin barrier is composed of cells and lipids. The cells act like bricks, while the lipids act like cement. If the cement is not properly applied, the bricks can collapse. Similarly, in the skin barrier, lipids play a crucial role. These lipids consist of ceramides, cholesterol, and fatty acids, forming a layered lamellar structure. The Atobarrier365 line strengthens the skin barrier by using patented capsules that replicate the structure of skin lipids with these three key components, thereby reinforcing the skin barrier.

Are there any Atobarrier365 products that contain animal-derived ingredients?

We avoid using animal-derived ingredients and each product is labeled with specific "FREE" claims indicating the absence of animal-derived ingredients. While we have not obtained vegan certification from an external organization, the products do not contain animal-derived ingredients and have not been tested on animals.

ATOBARRIER³⁶⁵ HYDRO CERA-HA SERUM

Cera-Hyaluronic Acid Serum, 2x Greater Moisture Retention, Improvement in Skin Glow

Hyaluronic Acid for sensitive skin should be different! AESTURA has combined Hyaluronic Acid with Ceramides to strengthen stressed skin barrier of sensitive skin while sealing in moisture.

WHERE TO BUY

INGREDIENTS more view
WATER / AQUA / EAU, BUTYLENE GLYCOL, GLYCERIN, NIACINAMIDE, 1,2-HEXANEDIOL, BETAINE, PANTHENOL, CARBOMER, ETHYLHEXYLGLYCERIN, SODIUM HYALURONATE, 3-O-ETHYL ASCORBIC ACID, CELLULOSE GUM, TROMETHAMINE, SODIUM TRIMETAPHOSPHATE, DIPOTASSIUM GLYCYRRHIZATE, PROPANEDIOL, ADENOSINE, HYDROXYPROPYL BISPALMITAMIDE MEA, SODIUM METAPH OSPHATE, GLYCERYL CAPRYLATE, POTASSIUM HYDROXIDE, SODIUM LACTATE, BIOSACCHARIDE GUM-1, CAPRYLIC/CAPRIC TRIGLYCERIDE, PENTYLENE GLYCOL, CITRIC ACID, HYDROXYETHYL UREA, POLYGLYCERYL-10 STEARATE, CHOLESTEROL, PROPYLENE GLYCOL, POTASSIUM CETYL PHOSPHATE, TOCOPHEROL, CERAMIDE NP, MANNITOL, STEARIC ACID, SILICA, ACRYLATES/AMMONIUM METHACRYLATE COPOLYMER, HYDROGENATED LECITHIN, PALMITIC ACID, OLEIC ACID, ARACHIDIC ACID, SPHINGOLIPIDS

FREE of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance.
WHO IT'S FOR more view
• Normal to dry, sensitive skin
• Oily, combination skin
• Skin experiencing tightness, dehydration, or loss of glow
• Skin needing long-lasting moisture retention
HOW TO USE more view
[Direction]
Apply evenly onto clean skin AM & PM, after toner and before moisturizer. Gently massage for better absorption.

[Recommended Routine]
Step 1. Cleansing
Use ATOBARRIER365 Cleanser for your morning and evening cleanse. It effectively removes impurities while safeguarding the sensitive skin barrier.

Step 2. Toner
After cleansing, apply ATOBARRIER365 Capsule Toner to refine skin texture and deliver deep hydration as well as skin barrier enhancement.

Step 3. Serum
For skin feeling tightness, use ATOBARRIER365 Cera-HA Serum to lock in deep moisture and prevent dehydration.

Step 4. Cream
Finish your routine with ATOBARRIER365 Cream to seal in moisture and strengthen your skin barrier for a healthy glow. Featuring 1 million high-density ceramide capsules, it fortifies the damaged skin barrier and maintains resilient, hydrated skin for up to 120 hours.

Step 5. Sunscreen
Before going out, apply DERMAUV365 Sunscreen. As sensitive skin is more vulnerable to UV rays, we recommend this sunscreen to provide both sun protection and barrier improvement.

[Additional Tip]
When your skin feels extra dry or needs a quick refresh during makeup touch-ups, use ATOBARRIER365 Cream Mist for on-the-go hydration anytime, anywhere.
CLINICAL RESULTS more view
1. Effective Inner Skin Hydration
- 281% increase in inner hydration after 5 minutes of use
- Up to 72 hours skin moisture retention
- 10% Decrease in TEWL after 3 days of use (Skin Barrier Improvement)
- 28% Increase in Skin Hydration Capacity after 7 days of use
- +124% Synergetic effect in the skin hydration when used with ATOBARRIER365 cream

2. Skin Glow and Texture Enhancement
- 111% Improvement in Skin Glow Index (Hydration - Glow - Translucency)
- 5% Enhancement in Skin Texture after 7 days of use

3. Satisfaction Survey Findings
- Feels like the skin is hydrated from deep inside (96%)
- Feels like the inner dryness of the skin is improved (96%)
- Feels like the skin moisture retains for a long time (96%)
- Feels like the product is well absorbed (100%)
- Feels like the skin texture is refined (100%)
- Feels like the skin becomes firm due to hydration (100%)

*Tested on 31 adult women with inner dry, sensitive skin aged 20-39, 2024.04.15 - 2024.05.14 (*Results may vary by individual)

Aestura Atobarrier365 Hydro Cera-HA Serum bottle on a pedestal with water splash effect, emphasizing hydration

ATOBARRIER³⁶⁵
HYDRO
CERA-HA SERUM

Ampoule containing

Cera-Hyaluronic Acid(TM)

that lasts twice as long

to retain moisture

in sensitive skin

Cera-HA™
A next-generation hyaluronic acid combined with ceramides that has intrinsic moisture retention capability, helping to retain supplied moisture for a longer time.
Niacinamide
Vitamin B3 effective for improving the skin barrier

The first application of patented Ceramide-binding Hyaluronic Acid by AMOREPACIFIC

AMOREPACIFIC's proprietary technology to stabilize water-insoluble ceramides in water serum formulations

ceramide, hyaluronic Acid Combining structure, skin

Close-up of face with Aestura essence applied

Benefit

1

Deep hydration

2

Strengthens the skin

barrier

Ingredient

Cera-Hyaluronic Acid™

Skin Type

Dry Skin & Sensitive skin

Clinically proven with visible proof

After 4 weeks
+23% Strengthen Skin Elasticity with Solidly Filled Moisture

281% recharge your moisture 3 times in just 5 mins
72 hours lasting moisturization after 1 use
111% moisture-gloss-transparency moisture glow index improvement

*Based on clinical study on 31 people with skin concerns of dryness and sensitiveness

Before and after comparison showing skin improvement after 4 weeks use

Cera-Hyaluronic Acid Serum

100% agree skin texture appears
smoother

100% agree skin feels firmer and more
hydrated

96% agree skin feels deeply
hydrated

*Based on clinical study on 31 people with skin concerns of dryness and sensitiveness.
*These before and after photos are not related to theclinical study.

Aestura texture and diverse skin tone model image

ATOBARRIER³⁶⁵
HYDRO CERA-HA
SERUM

Serum containing
Cera-Hyaluronic Acid™
that lasts twice

as long to retain moisture

in sensitive skin

How to use

1
Apply evenly onto clean skin
AM & PM, after toner and
before moisturizer
2
Gently massage
for better absorption

Dropper applying Aestura serum onto hand for skincare routine

SKIN SAFETY TEST

Aestura serum bottle placed on rippling water

DERMATOLOGIST TESTEDA patch test was performed for 48 hours to confirm skin irritation at the dermatology department of a university hospital.
NON-COMEDOGENIC TESTEDThe suitability for acne-prone skin was assessed after 4 weeks of use, by measuring the number of acne lesions and the amount of sebum with 20 adult participants who have acne-prone or troubled sensitive skin.
SENSITIVE SKIN PANEL TESTEDDegree of skin irritation was evaluated after 4 weeks of use, conducted on healthy adults with self-evaluated sensitive skin.

FAQ

Q.How does the CERA‑HA complex differ from regular hyaluronic acid serums?
more view
A.CERA-HA combines hyaluronic acid with ceramides to help retain moisture longer than hyaluronic acid alone. It supports sensitive skin's weakened barrier by boosting and sealing in hydration.
Q.What kind of texture and finish does ATOBARRIER365 Hydro CERA-HA Serum have on skin?
more view
A.This lightweight, fluid serum absorbs quickly without stickiness or greasiness. It leaves skin feeling hydrated, smooth, and comfortable, making it ideal for layering under moisturisers or sunscreen.
Q.What’s the difference between a barrier repair serum and a barrier repair cream—when would you choose one over the other?
more view
A.Skin tightness is often a sign that your skin needs more hydration, not just more moisture. Applying cream alone may not fully address the root cause of dryness. For best results, first replenish hydration with a toner or serum, then lock it in with a moisturizer. Barrier repair serums are designed to deliver hydration and barrier-supporting active ingredients in a lightweight format. Barrier repair creams are richer moisturisers that focuses on sealing in moisture and replenishing lipids.
Q.I have dry skin and my skin feels irritated. Is it okay to use AESTURA products?
more view
A.The ATOBARRIER365 line offers moisturizing solutions specifically designed for sensitive and dry skin. Generally, we recommend using ATOBARRIER365 products, which contain skin lipid ingredients such as ceramides that help strengthen the skin barrier, especially for skin with a damaged barrier. However, since we cannot assess the precise condition of your irritated skin, we suggest testing the product on a small area before full application.

1

2

SKINCARE TIPS

Inner dryness occurs when sensitive skin lacks internal moisture despite appearing well hydrated. In this article, AESTURA Derma Lab explains how inner dryness differs from surface dryness and why barrier‑focused hydration is key to comfortable, healthy skin.

How can we retain inner hydration in sensitive skin that keeps losing moisture?

ATOBARRIER365 HYDRO CERA-HA SERUM

ATOBARRIER365HYDROCERA-HA SERUM

ingredients