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ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum

ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum

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Regular price £13.97 GBP
Regular price £19.95 GBP Sale price £13.97 GBP
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Size

Product details

Brand
ISNTREE
Size
50ml
Scent
Fragrance-free formula
Skin type
All, incl. sensitive
Item form
Liquid
Texture & finish
Lightweight; absorbs fast, no greasy after-feel or pilling
Product benefits
Deep, lasting hydration with soothing care and barrier support
Active ingredients
14 types of hyaluronic acid, glyceryl glucoside, madecassoside, beta-glucan
Special ingredients
Mineral-rich sea water from Ulleung Island, allantoin, panthenol
When to use
AM & PM, after toner
Free from
Fragrance Free, Drying Alcohol Free, Silicone Free, Paraben Free
Claims
Vegan, Cruelty Free, Sensitive Skin Safe, SCPN Notified, CPNP Notified
Made in
Made in Korea

About this item

  • 14 hyaluronic acid types: ultra-low molecular forms reach deeper layers while larger forms hold moisture at the surface.
  • Ocean minerals plus glucoside: Ulleung Island sea water and glyceryl glucoside help boost lasting hydration.
  • Soothes sensitive skin: madecassoside, panthenol and allantoin calm while beta-glucan supports the barrier.
  • Weightless feel: sinks in fast with no sticky after-feel and no pilling under makeup, in any season.
  • Vegan and fragrance-free: cruelty-free, paraben-free, silicone-free and free from drying alcohol; pat 2-3 drops on after toner.
£13.97(£27.94/100ml)
In stock
Return within 61 days of receipt — hassle-free refund Returnable within 61 days of receiptItem can be returned in its original condition for a full refund within 61 days of receipt.Read full return policy
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View full details
  • Vegan
  • Cruelty Free
  • Fragrance Free
  • Drying Alcohol Free
  • Silicone Free
  • Paraben Free
  • Sensitive Skin Safe
  • Made in Korea
  • SCPN Notified
  • CPNP Notified

Description

ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum gives your skin deep, lasting hydration with 14 types of hyaluronic acid. This gentle, lightweight formula sinks in quickly to help dry, tired skin feel soft and fresh again. Made with sea water from Ulleung Island, this serum works for all skin types, even sensitive ones. It's free from fragrance, parabens, and oils, making it a kind choice for your daily skincare routine.

Deep Hydration That Reaches Every Layer

Think of this serum as a tall drink of water for your skin. The 14 types of hyaluronic acid work together to help moisture reach all layers of your skin, not just the surface. The ultra-low molecular weight forms are tiny enough to go deeper, where they help plump your skin from within. Unlike some serums that just sit on top, this one helps your skin feel soft and bouncy all day long. You'll notice how your skin feels less tight and more comfortable, even in dry weather or heated rooms.

Gentle Formula For Even The Most Sensitive Skin

We know how hard it can be to find products that don't upset sensitive skin. This serum was made with you in mind. It's free from all the things that often cause trouble:

  • No fragrance
  • No parabens
  • No silicones
  • No harsh alcohols
  • No common allergens
  • No oils

Plus, it's vegan, cruelty-free, and even safe for skin prone to fungal breakouts. The gentle formula includes Madecassoside, Panthenol, and Allantoin – all known to help calm and soothe upset skin.

Ocean-Sourced Minerals For Healthy, Happy Skin

The mineral-rich sea water from Ulleung Island brings a special touch to this serum. Full of good-for-skin elements like magnesium, calcium, and potassium, it helps give your skin what it needs to look its best. These minerals work with Beta-Glucan to support your skin's natural barrier – the shield that keeps moisture in and irritants out. When your barrier is strong, your skin looks more even, feels smoother, and glows with health. It's like giving your face a daily dose of nature's best ingredients.

Light Feel, Big Results

Nobody likes a sticky, heavy serum that sits on top of your skin. The ISNTREE serum sinks in fast without any greasy after-feel, making it perfect for your busy life. Use it morning and night – it works well under makeup and won't pill or ball up. The light texture makes it great year-round:

  • In summer, it hydrates without heaviness
  • In winter, it helps protect against dry heat and cold winds
  • In fall and spring, it keeps your skin balanced as the weather changes

Many users see results right away – skin feels softer and looks fresher after just one use.

Simple To Use In Any Routine

Adding this serum to your routine is easy. After washing your face and using toner (if you use one), put 2-3 drops on your fingertips and gently pat it onto your skin. Let it sink in for a few seconds, then follow with your moisturizer to lock in all that goodness. It plays well with other skincare products and fits into both morning and night routines. The 50ml bottle typically lasts 1.5 to 2 months with daily use, giving you great value. It works for all ages and all skin types – from dry and sensitive to oily and combination.

Give your skin the gift of deep, gentle hydration. Try ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum and feel the difference soft, plump, happy skin can make in how you face each day. Your skin will thank you for the care and comfort this special formula brings.


Disclaimer: Packaging and product images may be updated by the manufacturer without notice. The item you receive may differ in appearance from the images shown, and colours may vary slightly between screens.

How to Use

After cleansing and toning, dispense 2-3 drops of the serum onto your fingertips. Gently apply and pat into your face and neck until fully absorbed. Follow with a moisturizer to lock in hydration. For optimal results, use once or twice daily, in the morning and evening. Store the serum in a cool, dry place away from direct sunlight and extreme temperatures to preserve its efficacy. A 50 ml bottle typically lasts about 1.5 to 2 months with regular use, applying 2-3 drops per session. This routine is suitable for all skin types, especially dry, sensitive, and dehydrated skin, and can be integrated seamlessly into both morning and evening skincare routines.

Ingredients

Ingredients List

Sea Water, Water, Methylpropanediol, Glycerin, Butylene Glycol, 1,2-Hexanediol, Betain, Pentylene Glycol, Carbomer, Caprylyl Glycol, Allantoin, Tromethamine, Ethylhexylglycerin, Xanthan Gum, Panthenol, Malachite Extract, Hydrolyzed Hyaluronic Acid, Disodium EDTA, Glyceryl Acrylate/Acrylic Acid Copolymer, Glyceryl Glucoside, Sodium Hyaluronate, Potassium Hyaluronate, Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Dimethylsilanol Hyaluronate, Hydrolyzed Calcium Hyaluronate, Sodium Sulfated Hyaluronate, Madecassoside, Beta-Glucan, Sodium Stearoyl Hyaluronate, Sodium Oleoyl Hyaluronate

Key Ingredients

14 Types of Hyaluronic Acid, Sea Water from Ulleung Island, Glyceryl Glucoside, Beta-Glucan, Madecassoside

Disclaimer: Ingredients may be updated by the manufacturer without notice. For the most current and accurate list, always refer to the product packaging.

Complete Your Calm Ritual

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Routine Recommendation

Step 1
SKIN1004 Madagascar Centella Light Cleansing Oil

Cleanser

SKIN1004 Madagascar Centella Light Cleansing Oil

£13.47

Step 2
ISNTREE Green Tea Fresh Toner

Toner

ISNTREE Green Tea Fresh Toner

£13.47

Step 3
ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum

Serum

ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum

£13.97

Step 4
ISNTREE Hyaluronic Acid Moist Cream

Cream

ISNTREE Hyaluronic Acid Moist Cream

£13.47

Step 5
SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum SPF50+ PA++++

Sunscreen

SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum SPF50+ PA++++

£13.97


14 types of hyaluronic acid · 50 ml

Hydration, layered at fourteen different weights.

A fragrance-free, oil-free serum that uses ultra-low molecular hyaluronic acid alongside larger forms — so moisture sits at the surface and below it, not just on top.

Fragrance-freeOil-freeAll skin types
ISNTREE Serum ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum 50ml

What does it do?

One job, done thoroughly.

A hydration serum is only as good as how long the hydration lasts and how little it gets in the way.

Moisture at every level

Ultra-low molecular forms reach deeper into the surface layers while larger forms hold water where you can feel it.

Soothing and barrier support

Madecassoside, panthenol and allantoin calm, while beta-glucan supports the feel of the barrier.

No pilling, no residue

Sinks in fast with no sticky after-feel, so it layers under anything in any season.

What's in it?

Fourteen weights of one ingredient.

The hyaluronic acid does the hydrating; the rest is there to keep skin comfortable.

14

Hyaluronic acid types

A blend spanning ultra-low to higher molecular weights, so moisture is held at more than one depth.

01

Glyceryl glucoside + sea water

Mineral-rich sea water from Ulleung Island with glyceryl glucoside, supporting longer-lasting hydration.

02

Madecassoside + beta-glucan

A soothing active with panthenol and allantoin, plus beta-glucan for barrier comfort.

Model Yasmin applying serum with a glass dropper — ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum

How does it feel?

Watery enough to feel like nothing at all.

Two or three drops patted on after toner vanish in seconds — no slip, no tack, no pilling under sunscreen or makeup. It is the kind of serum you stop noticing, which is the point.

TextureWatery serum
FeelWeightless, no tack
FinishSoft, invisible

Choose your hydration step

Which ISNTREE hydration step fits your routine?

The same hyaluronic acid thinking in three routine roles — pick the layer you are missing.

Compare ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum ISNTREE Ultra-Low Molecular Hyaluronic Acid SerumYou’re viewing NUMBUZIN No.1 Pantothenic B5 Active Soothing Serum NUMBUZIN No.1 Pantothenic B5 Active Soothing SerumView product SKIN1004 Madagascar Centella Hyalu-Cica Blue Serum SKIN1004 Madagascar Centella Hyalu-Cica Blue SerumView product SOME BY MI Beta Panthenol Repair Serum SOME BY MI Beta Panthenol Repair SerumView product HARUHARU WONDER Black Rice Hyaluronic Botanical 2GF Wonderful Ampoule HARUHARU WONDER Black Rice Hyaluronic Botanical 2GF Wonderful AmpouleView product SKIN1004 Madagascar Centella Probio-Cica Intensive Ampoule SKIN1004 Madagascar Centella Probio-Cica Intensive AmpouleView product
Best forDehydrated skin wanting a concentrated hydration layerFast hydration with soothing and sebum balanceDeep 5-layer hydration with soothing and brightening careBarrier repair with deep, lasting hydration and calmed rednessDeep hydration, firmer-feeling skin, smoothed look of fine linesIntensive soothing with barrier support and a brighter look
Formula focus14 hyaluronic acid types with madecassoside and beta-glucanPantothenic acid (vitamin B5), beta-glucan, hyaluronic acidCentella asiatica leaf water, 5-layer hyaluronic acid, NiacinamidePanthenol 50, 000 ppm, beta-sitosterol 5Fermented black rice extract, plant-based EGF & FGF peptides, adenosineCentella asiatica extract, Probio-Cica ferment filtrate, Ceramide NP
ExperienceWatery serum; weightless, no pillingLight and freshLight, watery serumLightweightLightweightLight serum texture
Routine roleSerum — after toner, before creamAM & PMAM & PM, serum stepAM & PM, serum stepAM & PM, after tonerAM & PM, serum step

Is it for you?

For skin that is dehydrated, not dry.

Made for routines that need water, not oil.

  • Dehydrated, tight-feeling skin of any type
  • Oily and combination skin that dislikes rich textures
  • Sensitive-feeling skin and fragrance-free routines
  • Layering under sunscreen, cream or makeup
Oily skin, but never properly hydrated

…it gets absorbed in literally 3 seconds...oh my god ....i use it both in morning and in evening becoz i want my skin to be nicely hydrated, As i have oily acne prone skin and I don't use heavy moisturizers ....so providing enough hydration to my skin was always an issue to me

Scared of HA after a bad experience

I absolutely love this serum. I've been using it for 5 months. It's super hydrating, sinks in in seconds and you can do multiple layers if needed. … The Isntree one helped me with my broken skin barrier and has become my favourite HA ever.

A weightless layer of water, morning and night.

ISNTREE Ultra-Low Molecular Hyaluronic Acid Serum £13.97