Isntree
Isntree Ultra-Low Molecular Hyaluronic Acid Serum
Ingredient analysis and how the ad lines read
Read on 2026-09-08
What is this product?
A fragrance-free, water-based serum built on a thirteen-form hyaluronic-acid complex (from small hydrolyzed forms through fatty-acid-conjugated forms like sodium stearoyl and sodium oleoyl hyaluronate) plus madecassoside and beta-glucan. Choose it for a broad-spectrum hydration layer with no photosensitizing actives. The 'ultra-low-molecular-weight' name is not pinned to a specific named ingredient or disclosed molecular-weight figure in either archived ingredient statement. Korean and English ingredient statements from two different sources agree on identity and ingredient count (34 entries each) but diverge in listed order past the sixth ingredient; no argument in this record rests on that diverging segment. No pH, container form, or independent review population is confirmed for this SKU.
What makes it different?
Thirteen distinct hyaluronic-acid-family entries, counted across the two archived ingredient statements, the Korean one and the English INCI one, and no other surface, running from small hydrolyzed forms through to fatty-acid-conjugated ones (sodium stearoyl and sodium oleoyl hyaluronate), with the Korean record grouping all thirteen consecutively at positions 7 to 19. The 'ultra-low-molecular-weight' marketing name is not linked to any one of those forms and no molecular-weight figure is disclosed for any of them.
What is in it?
The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.
Key ingredient
- Sea Water
- Water
- Methylpropanediol
- Glycerin
- Butylene Glycol
- 1,2-Hexanediol
- Betaine
- 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
Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.
Did the ad claims hold up?
We checked 5 lines this product advertises against the ingredient list and public documents. 3 of them look likely, though none are proven outright.
Claims translated from Korean, originals preserved.
likely, not proven3
- Ultra-Low Molecular Weight Hyaluronic Acid Serum
Korean original
초저분자 히아루론산 세럼
- #MoistureCharge
Korean original
#수분충전
- All skin types
Korean original
모든 피부 타입
partly backed1
- At the serum step, drop 2~3 drops onto the entire face and apply with a massaging motion, then gently pat with palms to help it absorb.
Korean original
세럼 단계에서 2~3방울 떨어뜨려 얼굴 전체에 마사지하듯 발라준 후 손바닥으로 가볍게 두드려 흡수시켜줍니다.
no evidence1
- #3SecondQuickMoisturizing
Korean original
#3초속보습
Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.
What else is worth seeing?
Products we read alongside this one.