ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum is a 50ml lightweight, vegan serum with 14 types of ultra-low molecular hyaluronic acid and seawater from Ulleung Island, Korea, that deeply hydrates dehydrated skin and supports the moisture barrier. It is fungal-acne safe and suits all skin types, including dry and sensitive skin. Genuine ISNTREE, shipped from Seoul by DHL, with Cash on Delivery across the UAE and GCC.
| Brand | ISNTREE (Korea) |
|---|---|
| Size | 50ml |
| Best for | Dehydrated, dry and sensitive skin; all skin types |
| Key ingredients | 14 types of hyaluronic acid, Ulleung Island seawater, glyceryl glucoside, beta-glucan |
| Formula | Vegan, fungal-acne safe |
| Routine step | Serum, after toner |
“A firming serum that contains 14 layers of ultra-low molecular weight hyaluronic acid and fresh seawater from Ulleng Island deeply hydrates the dehydrated skin.”
What makes ISNTREE's hyaluronic acid serum different?
It uses hyaluronic acid in 14 forms, all ultra-low molecular, so moisture is delivered at several levels of the skin's surface. Instead of plain water, the base is seawater from Ulleung Island.
- 14 types of hyaluronic acid – layered, long-lasting hydration.
- Ulleung Island seawater – a mineral-rich hydrating base.
- Glyceryl glucoside – supports the skin's own water channels.
- Beta-glucan, panthenol and madecassoside – strengthen the moisture barrier and soothe.
Is it the best Korean hyaluronic acid serum for dry skin?
It is one of the strongest options for dehydration: a lightweight serum that layers easily in humid weather but still delivers deep moisture for skin dried out by air-conditioning. Because it is fungal-acne safe and vegan, it also suits breakout-prone and sensitive skin.
How to use ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum
After cleansing and toning
Take 2–3 drops on your palm, apply to the face avoiding the eyes and mouth, and pat gently until absorbed.
Morning
Follow with moisturiser and sunscreen, such as the ISNTREE Hyaluronic Acid Watery Sun Gel.
Evening
Seal it in with the ISNTREE Hyaluronic Acid Aqua Gel Cream.
ISNTREE HA serum vs COSRX Hydra Power Essence
| ISNTREE Ultra-Low Molecular HA Serum | COSRX Hyaluronic Acid Hydra Power Essence | |
|---|---|---|
| Hyaluronic acid | 14 types, ultra-low molecular | Sodium hyaluronate |
| Base | Ulleung Island seawater | Sea buckthorn water |
| Texture | Light serum | Oil-free gel |
Prefer a minimal gel? Try the COSRX Hyaluronic Acid Hydra Power Essence. Shop more Korean skincare for dry skin, serums and ampoules or the full ISNTREE range.
Genuine ISNTREE from Seoul: how we source and ship
Korean Skincare Arabia is an authentic seller of ISNTREE products in the UAE and GCC. We source all stock directly from official brand channels in South Korea, verify that every delivery is a fresh batch, receive it into our Seoul warehouse and ship each parcel directly from Korea by air, with delivery in 5–7 days across the UAE and GCC — so you always get fresh K-beauty with batch codes you can verify.
Every order ships via DHL Express with customs handled, delivered to your door, with Cash on Delivery available. Verify your product with our authenticity check guide. Our group is rated 4.7 on Trustpilot from 18,000+ reviews.
In short
- 14 types of ultra-low molecular hyaluronic acid with Ulleung seawater.
- Vegan and fungal-acne safe; suits all skin types.
- Use 2–3 drops after toner, AM and PM.
ISNTREE Hyaluronic Acid Serum FAQs
Where can I buy authentic ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum in the UAE and GCC?
You can buy authentic ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum from Korean Skincare Arabia. We source stock directly from official brand channels in South Korea, check that every batch is fresh, and ship each parcel by air from our Seoul warehouse, arriving in 5–7 days across the UAE and GCC with Cash on Delivery. You can verify the batch code on your pack with our authenticity check guide.
How many types of hyaluronic acid are in ISNTREE's serum?
The serum contains 14 types of ultra-low molecular weight hyaluronic acid. Using many molecular forms lets the formula hydrate at different levels of the skin's surface, which is why it feels light but keeps skin moisturised for longer than a single-form hyaluronic acid serum.
Is ISNTREE hyaluronic acid serum fungal-acne safe?
Yes, it is listed as fungal-acne safe and vegan, and it is recommended for dry, sensitive and all skin types. That makes it a good hydrating step for breakout-prone skin that still feels tight, especially in air-conditioned rooms where skin loses water quickly.
How many drops should I use?
ISNTREE recommends two to three drops. Spread them on your palm, apply to the face after cleansing and toning, and pat gently until absorbed. You can layer a second application on very dry areas, then follow with moisturiser to lock the hydration in.
Can I use it with retinol or vitamin C?
Yes. Hyaluronic acid pairs well with most actives and helps keep skin comfortable while you use stronger treatments. Apply the serum after toner, then your treatment or moisturiser. Always finish your morning routine with sunscreen when using vitamin C or retinoids.
What is Ulleung Island seawater?
ISNTREE uses seawater from Ulleung Island in Korea as the base of the serum instead of plain water. It provides a mineral-rich hydrating foundation for the hyaluronic acids, glyceryl glucoside and beta-glucan that help strengthen the skin's moisture barrier.
Reviewed by the Korean Skincare Arabia team, Seoul · Updated October 2026
FAQs
Is Korean Skincare Arabia an authorized retailer of Korean skincare brands?
Yes. Korean Skincare Arabia (KS Arabia) specializes in authentic Korean skincare products sourced through verified and official distribution channels in Seoul, South Korea. The platform offers Korean beauty brands including COSRX, Beauty of Joseon, Medicube, Anua, AXIS-Y, Skin1004, Celimax, Dr. Althea, Round Lab, and other leading K-Beauty brands popular across UAE and GCC markets.
Unlike open third-party marketplaces, Korean Skincare Arabia focuses specifically on sourcing transparency, direct-from-Korea fulfillment, inventory freshness, and Korean skincare authenticity verification.
Where does Korean Skincare Arabia ship products from?
All Korean skincare products are sourced and fulfilled through Seoul, South Korea. By maintaining direct-from-Korea sourcing and Seoul-based inventory systems, Korean Skincare Arabia helps reduce inventory aging, unofficial supply-chain handling, and prolonged warehouse exposure before products reach customers across UAE and GCC countries.
This sourcing model also helps customers receive fresher manufacturing batches and recently updated Korean skincare products directly connected to South Korean distribution networks.
How long does shipping take across UAE and GCC countries?
Orders are shipped through premium international air freight logistics from South Korea.
Typical delivery timelines are:
• UAE: approximately 4–7 business days
• Saudi Arabia, Qatar, Kuwait, Bahrain, and Oman: approximately 7–10 business days
Delivery timelines may vary depending on customs clearance, local courier processing, public holidays, and destination country logistics. All orders include shipment tracking for end-to-end visibility.
Are the products from Korean Skincare Arabia 100% authentic?
Yes. Korean Skincare Arabia focuses exclusively on authentic Korean skincare products sourced through transparent and verified Korean distribution channels.
Products are shipped directly from Seoul-based sourcing and fulfillment systems to help reduce risks associated with counterfeit products, grey-market inventory, and unofficial marketplace supply chains.
Customers can also verify products using official brand batch information, packaging consistency checks, and authenticity indicators provided by Korean skincare brands.
Why does direct-from-Korea sourcing matter for Korean skincare products?
Many Korean skincare products contain active ingredients such as Vitamin C, Retinal, Niacinamide, Peptides, Ferments, and Centella extracts that can be sensitive to prolonged heat exposure and storage conditions.
Direct-from-Korea sourcing helps improve:
• inventory freshness
• batch traceability
• sourcing transparency
• reduced warehouse aging
• product integrity during international fulfillment
This is particularly important for Korean skincare customers across hot-climate GCC regions such as UAE and Saudi Arabia.
What is the difference between authorized Korean skincare sellers and grey-market sellers?
Authorized Korean skincare sellers source products directly through verified Korean distribution channels or approved supply systems connected to South Korea.
Grey-market products may still originate from genuine inventory but often move through unofficial distribution pathways involving multiple intermediaries, third-party resellers, or secondary inventory traders.
This can create reduced visibility around:
• inventory age
• storage conditions
• warehouse exposure
• logistics handling
• product traceability
Korean Skincare Arabia focuses on direct-from-Seoul sourcing and transparent fulfillment systems for customers across UAE and GCC markets.
Does Korean Skincare Arabia have a presence in the UAE?
Yes. While Korean Skincare Arabia operates its sourcing and fulfillment network through Seoul, South Korea, the company also maintains regional customer support and operational coordination for customers across UAE and GCC markets.
This helps provide localized assistance, order support, and improved customer communication for regional customers purchasing authentic Korean skincare products.
How can customers verify Korean skincare authenticity?
Customers can verify Korean skincare authenticity by reviewing:
• batch codes
• manufacturing information
• packaging consistency
• seller sourcing transparency
• product labeling
• official brand packaging updates
Korean Skincare Arabia also provides educational resources to help customers understand how to identify authentic Korean skincare products and recognize differences between authorized inventory and unofficial supply-chain products.
Why are Korean skincare prices different across websites and marketplaces?
Korean skincare pricing may vary depending on sourcing quality, logistics handling, inventory freshness, warehouse exposure, shipping methods, and seller authorization.
Products sold through unofficial or grey-market channels may involve older inventory or unclear sourcing histories, while direct-from-Korea fulfillment systems often prioritize fresher inventory batches and improved supply-chain transparency