TW-REAL BIFIDA Ampoule 50ml
TW-REAL BIFIDA Ampoule 50ml is Isntree's concentrated, fast-absorbing booster, formulated for dullness and an uneven-looking tone. Built around Bifida Ferment Lysate and Niacinamide, it is aimed at post-exfoliation sensitivity and rough, flaky or wind-chapped texture.
No reviews yet50 ml
$75.00 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- SensitiveDryNormalCombination
- Helps with
- Dullness and an uneven-looking tonePost-exfoliation sensitivityRough, flaky or wind-chapped textureFine lines and loss of bounce
In stock. Arrives in 3 to 7 business days
We accept
You’re $100.00 away from free US shipping.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
TW-REAL BIFIDA Ampoule 50ml is Isntree's concentrated, fast-absorbing booster (50ml). Bifida Ferment Lysate is a fermented filtrate Korean skincare brands favor for a lightweight, fast-absorbing hydration boost, part of the fermented-skincare tradition Korean labs have built up over two decades. Niacinamide sits in the formula as the brightening and barrier workhorse of the routine, the same B3 vitamin dermo-cosmetic protocols reach for when a complexion looks dull, blotchy or prone to visible redness after cleansing. The concentrated, fast-absorbing texture sinks in without a greasy residue, leaving skin feeling hydrated and primed for the moisturizer layered on top. It sits in a Korean routine as the targeted boost step, best layered under a moisturizer once or twice a day for a concentrated boost.
Key benefits
- Bifida Ferment Lysate for fermented hydrator
- Niacinamide for brightening, barrier-supporting
- Allantoin for soothing agent
- Concentrated, fast-absorbing texture built for a targeted boost step
- Authentic Korean-market formula, sourced as the same version sold on Korean retail shelves
- Layers cleanly under a moisturizer once or twice a day for a concentrated boost
Inside the formula
Inside the formula
What is the TW-REAL BIFIDA Ampoule 50ml?
TW-REAL BIFIDA Ampoule 50ml is Isntree's concentrated, fast-absorbing booster (50ml), formulated as targeted boost step in a Korean skincare routine. It suits sensitive, dry, normal skin types, and it is sourced here as the authentic Korean-market formula rather than a US-shelf reformulation.
How should I use the TW-REAL BIFIDA Ampoule 50ml?
Press a few drops into cleansed skin morning and evening, then follow with a moisturizer to lock the boost in. Working it in this order keeps the concentrated, fast-absorbing texture behaving the way Isntree formulated it to, rather than rushing straight to the next step in the routine.
How often should I use this booster?
Once or twice a day, layered under a regular moisturizer for a concentrated boost. Consistency across a full skin cycle of several weeks matters far more than an occasional use for a booster like this one, since most of its benefit shows up with steady, repeated application.
Who is this booster best suited for?
This booster is best suited for sensitive, dry, normal, combination skin, particularly anyone dealing with dullness and an uneven-looking tone. Patch test on the inner arm before a first full-face application if skin tends to react easily.
What are the key ingredients in this booster?
The formula lists Bifida Ferment Lysate, Niacinamide and Allantoin among its ingredients, alongside the rest of the base that carries them across the skin. Each one is named here in the exact form it appears on Isntree's own ingredient list, not inferred from the product name.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (30): Bifida Ferment Lysate, Dipropylene Glycol, Niacinamide, Glycerin, 1,2-Hexanediol, Butylene Glycol, Illicium Verum (Anise) Fruit Extract, Allantoin, Panthenol, Hydroxyethylcellulose, Water, Scutellaria Baicalensis Root Extract, Arginine, Carbomer, Adenosine, Disodium EDTA, Lactobacillus/Rice Ferment Filtrate, Sodium Hyaluronate, Origanum Vulgare Leaf Extract, Chamaecyparis Obtusa Leaf Extract, Hydrolyzed Collagen, Salix Alba (Willow) Bark Extract, Lactobacillus/Soybean Ferment Extract, Lactobacillus/Pumpkin Ferment Extract, Portulaca Oleracea Extract, Cinnamomum Cassia Bark Extract, Beta-Glucan, Acetyl Hexapeptide-8, Palmitoyl Tripeptide-1, Copper Tripeptide-1
Ingredient list read from isntree-global.com on 10 September 2026.
30 of 30 explained
- Bifida Ferment Lysate ferment
- Bifida Ferment Lysate is a bifidobacteria ferment with the cells broken open. It is the ingredient behind the first-essence category and is used for the look of tired, reactive skin.
- Dipropylene Glycol humectant
- Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.
- Niacinamide active
- Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- Illicium Verum (Anise) Fruit Extract plant extract
- Star Anise Fruit Extract carries aromatic plant compounds. It is used as a conditioning extract and contributes scent.
- Allantoin active
- Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
- Panthenol humectant
- Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.
- Hydroxyethylcellulose thickener
- Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.
- Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Scutellaria Baicalensis Root Extract plant extract
- Scutellaria Baicalensis is Chinese skullcap. Its root extract carries baicalin, a well studied plant antioxidant, and it is used for the look of redness.
18 more explained
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Adenosine active
- Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Lactobacillus/Rice Ferment Filtrate ferment
- Rice fermented with lactobacillus and then strained. Fermentation breaks the rice starch into smaller sugars and amino acids that hold water.
- Sodium Hyaluronate humectant
- Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
- Origanum Vulgare Leaf Extract plant extract
- Oregano leaf extract, rich in the phenols carvacrol and thymol. It is used as an antioxidant plant extract and brings its own herbal scent with it.
- Chamaecyparis Obtusa Leaf Extract plant extract
- Chamaecyparis Obtusa is hinoki cypress. Its leaf extract carries aromatic plant compounds and is used in Korean formulas aimed at oily, congested skin.
- Hydrolyzed Collagen protein
- Hydrolyzed Collagen is collagen broken into fragments small enough to dissolve in water. It cannot become collagen in skin; what it does is hold water at the surface and leave a smooth, conditioned film.
- Salix Alba (Willow) Bark Extract plant extract
- Willow Bark Extract carries salicin, the plant compound salicylic acid is related to. The two are not interchangeable: willow bark is a mild clarifying extract, not a BHA exfoliant at the levels used in cosmetics.
- Lactobacillus/Soybean Ferment Extract ferment
- This is soybean fermented by lactobacillus. The fermentation breaks soy proteins into smaller pieces, which is what makes the extract easier for a formula to carry.
- Lactobacillus/Pumpkin Ferment Extract ferment
- Pumpkin fermented with lactobacillus and then extracted. Fermentation frees the fruit's sugars and enzymes, and the result is used as a conditioning ferment.
- Portulaca Oleracea Extract plant extract
- Portulaca Oleracea is purslane. Its extract is unusually high in omega-3 fatty acids and antioxidants for a plant, and Korean formulas use it for the look of reddened, reactive skin.
- Cinnamomum Cassia Bark Extract plant extract
- Cassia cinnamon bark extract, a traditional herbal ingredient carrying cinnamaldehyde and tannins. It is used in warming, antioxidant-rich blends.
- Beta-Glucan polysaccharide
- Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin.
- Acetyl Hexapeptide-8 peptide
- Acetyl Hexapeptide-8 is a six-amino-acid peptide used for the look of expression lines, particularly around the eyes. It is the peptide sold under the name Argireline and is water soluble and stable.
- Palmitoyl Tripeptide-1 peptide
- Palmitoyl Tripeptide-1 is a short peptide with a fatty tail added so it can travel through the oily outer layer of skin. It is used for the look of firmness and is almost always paired with palmitoyl tetrapeptide-7.
- Copper Tripeptide-1 peptide
- Copper Tripeptide-1 is three amino acids bound to a copper ion, and the classic firming peptide in cosmetic chemistry. It is blue in solution, which is often why a serum carrying it is tinted, and it is used for the look of firmness and fine lines.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8806135245765
- Made in
- Republic of Korea
- Volume
- 50 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Allantoin, Beta-Glucan, Collagen, Niacinamide, Panthenol, Peptides, Sodium Hyaluronate
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Every order ships from California or direct from Korea, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
How to use
- Apply after toner while the surface is damp so the slippy texture spreads instead of dragging.
- Press four or five drops across the face with flat fingertips, working outward.
- Wait about a minute before your moisturiser so the two layers do not roll together.
- Do not use it in place of a moisturiser, since an ampoule has too little body to hold water in.
Worth knowing
- Patch test on the inner arm before a first full-face application if skin tends to react easily.
- Store away from direct sunlight and high heat to keep the texture and scent stable over time.
- Introduce one new active at a time when adding this into an existing routine.
Complete the routine
- This itemIsntree TW-REAL BIFIDA Ampoule 50ml$37.50
- Seal the routine in as the last stepIsntree C-Niacin Toning Cream 50ml$22.50
- Prep after cleansing, before the treatment stepIsntree Aloe Soothing Toner 200ml$15.00
Total for 3 items$75.00
Reviews
No reviews yet. Tell us how much you love the product!
Write a reviewWrite a review
Isntree TW-REAL BIFIDA Ampoule 50ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Isntree, Korean-market original
Shop TW-REAL BIFIDA Ampoule 50ml (50ml), the authentic Korean-market booster from Isntree formulated with Bifida Ferment Lysate, sourced for the Korean market rather than a US-shelf reformulation.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.