Isntree
Isntree Hyper Retinol EX 1.0 Serum
Ingredient analysis and how the ad lines read
Read on 2026-09-06
What is this product?
Isntree's Hyper Retinol EX 1.0 Serum is for someone who wants a retinol that arrives pre-cushioned: a 20ml evening emulsion pairing retinol and retinyl palmitate with bakuchiol, five peptides and a five-ceramide, cholesterol and phytosphingosine tail, with no fragrance anywhere in its 42 ingredients. The catch is the number on the label: Isntree publishes no concentration, no pH and no test for it, so nothing confirms what the 1.0 measures, and retailer pages contradict each other, one stating 1% retinol in its description and 0.1% in its ingredient blurb on the same page. Skip it if you are pregnant or nursing (retinoids), and buy a labeled-strength retinoid instead if knowing your dose matters to you.
What makes it different?
What separates it on its board is the barrier package riding along: five ceramide types (NP, NS, AS, AP, EOP) plus cholesterol and phytosphingosine behind the retinoid, a combination most retinol serums leave to your moisturizer. Retailer guidance says start 2 to 3 nights a week and patch test first.
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 ingredientWorth a closer look
- Water
- Butylene Glycol
- Glycerin
- Niacinamide
- Dibutyl Adipate
- Caprylic/Capric Triglyceride
- Bakuchiol
- Ammonium Acryloyldimethyltaurate/VP Copolymer
- 1,2-Hexanediol
- Hydrogenated Lecithin
- Betaine
- Hydroxyacetophenone
- Retinyl Palmitate
- Sodium Stearoyl Glutamate
- Tocopherol
- Retinol
- Allantoin
- Panthenol
- Polysorbate 20
- Adenosine
- Cetearyl Alcohol
- Disodium EDTA
- Stearic Acid
- Dipropylene Glycol
- Hydroxypropyl Cyclodextrin
- Polydextrose
- Ceramide NP
- Asiaticoside
- Madecassic Acid
- Asiatic Acid
- Ceramide NS
- Cholesterol
- Phytosphingosine
- Ferulic Acid
- Ceramide AS
- Ceramide AP
- Copper Tripeptide-1
- Acetyl Hexapeptide-8
- Palmitoyl Pentapeptide-4
- Palmitoyl Tetrapeptide-7
- Palmitoyl Tripeptide-1
- Ceramide EOP
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 the one line this product advertises against the ingredient list and public documents. None of them hold up. There is nothing behind them.
Claims translated from Korean, originals preserved.
no evidence1
- Hyper Retinol EX 1.0 Serum 20ml
Korean original
하이퍼 레티놀 EX 1.0 세럼 20ml
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?
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