Real Barrier
Peptivita C Blemish Serum 30ml
Real Barrier Peptivita C Blemish Serum 30ml carries twelve separate peptide forms on its own ingredient panel, including Ascorbic Acid Polypeptide, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2.
No reviews yet30 ml
$141.67 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- dull, uneven-tone skindry, dehydrated skinskin looking to layer a targeted step under moisturizercombination skin that wants lightweight hydration
- Helps with
- dullness and an uneven-looking tonedehydration sitting under a moisturizer that cannot fix it alonea lack of bounce in tired-looking skinthe specific concern named on the label rather than a generic complaint
In stock. Arrives in 3 to 7 business days
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How it works
The panel on this serum names twelve forms of peptide rather than one: Ascorbic Acid Polypeptide, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Tetrapeptide-3, Acetyl Tetrapeptide-5, Acetyl Tetrapeptide-9, Copper Tripeptide-1, Nonapeptide-1, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5. Ascorbic Acid Polypeptide is vitamin C attached to a short protein chain to keep it stable in water. It is an antioxidant used for the look of dullness. On this panel it sits alongside Niacinamide, 3-O-Ethyl Ascorbic Acid and Allantoin. 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.
Key benefits
- Twelve forms of peptide on one panel, not a single token inclusion
- Niacinamide on the same panel, the formula's active
- 3-O-Ethyl Ascorbic Acid on the same panel, the formula's antioxidant
- 30 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
How to use
- Apply a few drops of Real Barrier Peptivita C Blemish Serum 30ml to cleansed, toned skin, pat in until absorbed, then follow with moisturizer.
Where does Real Barrier Peptivita C Blemish Serum 30ml go in my routine?
Apply it after cleansing and toning and before moisturizer, since a serum's concentrated formula works best on freshly prepped skin rather than layered over a heavy cream. A few drops are usually enough for the whole face; pat rather than rub it in. Follow with moisturizer to seal in what the serum just delivered.
Can I use Real Barrier Peptivita C Blemish Serum 30ml with other actives, like a retinoid or another exfoliating acid?
It generally layers fine with most other actives, but introduce anything new gradually rather than adding several new steps to a routine at once. If you are already using a strong exfoliating acid or a prescription retinoid or a strong acid exfoliant, alternate nights rather than stacking everything at once until you know how skin responds. When in doubt, patch test the combination on a small area first.
How many drops of Real Barrier Peptivita C Blemish Serum 30ml should I use?
Two to three drops or a single pump is enough for the whole face for most people; more product does not mean faster results, just more runoff. Pat it into skin in sections rather than dragging it across the face. Extra can go onto the neck and décolletage if there is enough left over.
Is Real Barrier Peptivita C Blemish Serum 30ml suitable for daily use?
Yes, this is formulated for regular AM and/or PM use as a standard routine step rather than an occasional treatment. New users can start once daily and build up to twice if skin tolerates it well. Consistency over weeks, not a single application, is what a serum like this is built to reward.
Is Real Barrier Peptivita C Blemish Serum 30ml the authentic Korean-market formula?
Yes, this is the same serum Real Barrier sells through Korean retail, sourced specifically for Korean Pharmacy's US catalog rather than reformulated for a US shelf. It carries its original Korean-market batch coding intact. That is the version this brand's reputation is actually built on.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (76): Water/Aqua, Butylene Glycol, Niacinamide, Glycerin, 1,2-Hexanediol, Pentylene Glycol, Carbomer, Polyglyceryl-10 Laurate, 3-O-Ethyl Ascorbic Acid, Arginine, Allantoin, Betaine, Melia Azadirachta Leaf Extract, Disodium EDTA, Hydroxyacetophenone, Melia Azadirachta Flower Extract, Adenosine, Curcuma Longa (Turmeric) Root Extract, Sodium Hyaluronate, Phytosterols, Hydrogenated Lecithin, Xanthan Gum, Glycine, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Serine, Glutamic Acid, Ferulic Acid, Thymus Mastichina Flower Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Ocimum Sanctum Leaf Extract, Aspartic Acid, Leucine, Alanine, Lysine, Sclerotium Gum, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Corallina Officinalis Extract, Isoleucine, Beta-Glucan, Bis-Capryloyloxypalmitamido Isopropanol, Dihydroxyisopropyl Palmoylpalmamide, Glutathione, Linoleic Acid, Myristoyl/Palmitoyl Oxostearamide/Arachamide MEA, Histidine, Cysteine, Methionine, Ascorbic Acid Polypeptide, Litsea Cubeba Fruit Oil, Caprylic/Capric Triglyceride, Fullerenes, PVP, Polyglyceryl-10 Diisostearate, Acetyl Hexapeptide-8, Astaxanthin, Ascorbic Acid, Folic Acid, Panthenol, Tocopherol, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Tetrapeptide-3, Acetyl Tetrapeptide-5, Acetyl Tetrapeptide-9, Carnosine, Copper Tripeptide-1, Nonapeptide-1, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5, Limonene, Linalool
Ingredient list read from incidecoder.com on 30 August 2026.
71 of 76 explained
- Water/Aqua 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.
- 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.
- 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.
- Pentylene Glycol humectant
- Pentylene Glycol hydrates and, like the other longer-chain glycols, makes a formula less hospitable to microbes so the preservative system can be lighter. It also improves how evenly a product spreads.
- 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.
- Polyglyceryl-10 Laurate emulsifier
- Polyglyceryl-10 Laurate is a sugar-derived emulsifier and solubiliser, mild enough to be a standard choice in Korean essences. It dissolves small amounts of oil into water without any tightening feel.
- 3-O-Ethyl Ascorbic Acid antioxidant
- 3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative that skin converts to ascorbic acid. It survives in a formula far better than pure vitamin C and works at a gentler pH, so it suits skin that finds the pure acid uncomfortable.
- 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.
- 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.
- Betaine humectant
- Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.
59 more explained
- Melia Azadirachta Leaf Extract plant extract
- Melia Azadirachta is neem. Its leaf and flower extracts are long-standing Ayurvedic ingredients, and Korean formulas use them in products aimed at the look of congested, blemish-prone skin.
- 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.
- Hydroxyacetophenone preservative booster
- Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
- 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.
- Curcuma Longa (Turmeric) Root Extract plant extract
- Turmeric Root Extract carries curcuminoids, well studied plant antioxidants. It is used for the look of dullness and uneven tone, and it tints a formula faintly yellow.
- 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.
- Phytosterols emollient
- Phytosterols are plant sterols, structurally close to the cholesterol in skin's own lipid layer. They soften skin and help the oil phase of a formula hold together.
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Xanthan Gum thickener
- Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
- Glycine amino acid
- Glycine is the smallest amino acid and one of the free amino acids skin holds to keep water in the outer layer. In a formula it is a humectant and a mild buffer.
- Citrus Aurantium Bergamia (Bergamot) Fruit Oil fragrance component
- Bergamot Fruit Oil is a citrus essential oil and the top note of eau de cologne. It scents a formula; citrus oils are the aromatic class most likely to bother reactive skin.
- Serine amino acid
- Serine is one of the most abundant free amino acids in the outer layer of skin, where it helps hold water. Added to a formula it is a humectant.
- Glutamic Acid amino acid
- Glutamic Acid is an amino acid used as a humectant and a mild pH adjuster. It is one of the components of skin's natural moisturising factor.
- Ferulic Acid antioxidant
- Ferulic Acid is a plant antioxidant from bran and seeds. Its main formulation job is stabilising vitamins C and E so a serum keeps working for longer, which is why the three appear together so often.
- Citrus Aurantium Dulcis (Orange) Peel Oil fragrance component
- Sweet Orange Peel Oil is a citrus essential oil carrying limonene. It scents a formula, and limonene is one of the components EU labelling names separately.
- Ocimum Sanctum Leaf Extract plant extract
- Ocimum Sanctum is holy basil, or tulsi. Its leaf extract carries plant antioxidants and is used in formulas built for the look of stressed, reactive skin.
- Aspartic Acid amino acid
- Aspartic Acid is an amino acid used as a humectant and buffer, usually within a wider amino acid blend.
- Leucine amino acid
- Leucine is an essential amino acid used as a humectant, part of the amino acid block many Korean essences carry.
- Alanine amino acid
- Alanine is a free amino acid skin uses as part of its own moisture-holding system. In a formula it hydrates and conditions.
- Lysine amino acid
- Lysine is an essential amino acid used as a conditioning humectant in an amino acid complex.
- Sclerotium Gum thickener
- Sclerotium Gum is a fungal polysaccharide thickener. It gives a smooth, non-stringy gel and holds an emulsion stable.
- Tyrosine amino acid
- Tyrosine is an amino acid used as a conditioning humectant in amino acid complexes.
- Phenylalanine amino acid
- Phenylalanine is an essential amino acid used in skincare as a conditioning humectant.
- Proline amino acid
- Proline is an amino acid abundant in collagen and one of skin's own humectants. Added to a formula it holds water in the outer layer.
- Threonine amino acid
- Threonine is an essential amino acid used in skincare as a humectant, normally as part of an amino acid complex rather than alone.
- Valine amino acid
- Valine is an essential amino acid used as a humectant alongside the rest of an amino acid block.
- Corallina Officinalis Extract plant extract
- Corallina Officinalis is coral seaweed, which holds calcium and magnesium in its structure. Its extract is used as a mineral-rich conditioning ingredient.
- Isoleucine amino acid
- Isoleucine is an essential amino acid used as a conditioning humectant within an amino acid complex.
- 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.
- Glutathione antioxidant
- Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
- Linoleic Acid fatty acid
- Linoleic Acid is an essential omega-6 fatty acid and the main fatty acid in sunflower, safflower and rosehip oil. In a formula it is a lipid that softens and sits in the outer layer.
- Histidine amino acid
- Histidine is an amino acid used as a humectant and a buffer, part of skin's own free amino acid pool.
- Cysteine amino acid
- Cysteine is a sulphur-bearing amino acid used as a humectant and antioxidant. It is one of the three building blocks of glutathione.
- Methionine amino acid
- Methionine is a sulphur-bearing essential amino acid used as a humectant and mild antioxidant.
- Ascorbic Acid Polypeptide antioxidant
- Ascorbic Acid Polypeptide is vitamin C attached to a short protein chain to keep it stable in water. It is an antioxidant used for the look of dullness.
- Litsea Cubeba Fruit Oil fragrance
- May chang oil, a bright lemon-scented essential oil pressed from a small Asian tree. Its scent comes mostly from citral, the same aromatic that gives lemongrass its character.
- Caprylic/Capric Triglyceride emollient
- Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant oil.
- Fullerenes antioxidant
- Fullerenes are hollow cage-shaped carbon molecules, C60 the best known of them. They are used as an antioxidant and are notably more stable than the vitamin antioxidants.
- PVP film former
- PVP is polyvinylpyrrolidone, a water-soluble polymer that dries into a clear flexible film. It holds pigment or hair in place and washes off with water.
- Polyglyceryl-10 Diisostearate emulsifier
- A polyglycerin ester carrying two fatty chains, which makes it more oil-loving than the single-chain version. It suits cleansing oils and rich creams.
- 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.
- Astaxanthin antioxidant
- Astaxanthin is a deep red antioxidant from microalgae, the pigment that makes salmon pink. It is oil soluble, colours a formula noticeably, and is used as an antioxidant.
- Ascorbic Acid antioxidant
- Ascorbic Acid is pure vitamin C, the most researched form and also the least stable: it needs a low pH and airtight packaging to stay active. It is an antioxidant used for the look of dullness and uneven tone.
- Folic Acid vitamin
- Folic Acid is vitamin B9. It is used in a formula as a conditioning vitamin, usually as part of a B-complex blend.
- 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.
- Tocopherol antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- Acetyl Octapeptide-3 peptide
- Acetyl Octapeptide-3 is an eight-amino-acid peptide used for the look of expression lines. It is usually paired with acetyl hexapeptide-8 rather than used alone.
- Acetyl Tetrapeptide-2 peptide
- Acetyl Tetrapeptide-2 is a four-amino-acid peptide used for the look of firmness, particularly in eye and neck formulas.
- Acetyl Tetrapeptide-3 peptide
- Acetyl Tetrapeptide-3 is a four-amino-acid peptide used for the look of density and firmness. It appears in scalp formulas as often as in facial ones.
- Acetyl Tetrapeptide-5 peptide
- Acetyl Tetrapeptide-5 is a four-amino-acid peptide used in eye products for the look of puffiness and crepiness.
- Acetyl Tetrapeptide-9 peptide
- Acetyl Tetrapeptide-9 is a four-amino-acid peptide used for the look of firmness and density. It is most often supplied alongside acetyl tetrapeptide-11.
- Carnosine antioxidant
- Carnosine is a small peptide of two amino acids that acts as an antioxidant, particularly against the sugar-driven damage formulators call glycation. It is used for the look of dull, sallow skin.
- 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.
- Nonapeptide-1 peptide
- Nonapeptide-1 is a nine-amino-acid peptide used for the look of uneven tone rather than for firmness, which makes it unusual among cosmetic peptides.
- Palmitoyl Pentapeptide-4 peptide
- Palmitoyl Pentapeptide-4 is the five-amino-acid peptide originally sold as Matrixyl. It is used for the look of fine lines and is one of the longest-standing cosmetic peptides.
- 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.
- Palmitoyl Tripeptide-5 peptide
- Palmitoyl Tripeptide-5 is a fatted three-amino-acid peptide used for the look of firmness and fine lines. The palmitoyl tail is what lets it cross an oily surface.
- Limonene fragrance component
- Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
- Linalool fragrance component
- Linalool is a floral aromatic found in lavender, bergamot and coriander. It is one of the 26 fragrance components EU labelling requires to be declared by name.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809911695099
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Adenosine, Allantoin, Beta-Glucan, Glutathione, Niacinamide, Panthenol, Peptides, Sodium Hyaluronate, Vitamin C
- 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.
Inside the formula
Inside the formula
Worth knowing
- Skin that is actively broken out or irritated does best starting this once daily before moving to twice.
- New actives, including this one, are best patch tested on the inner arm before a first full-face use.
Complete the routine
- This itemReal Barrier Peptivita C Blemish Serum 30ml$42.50

- The treatment step of this routineReal Barrier Aqua Soothing Ampoule 30ml$37.50

- Seal the routine in as the last stepRealbarrier Extreme Cream$28.23

Total for 3 items$108.23
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Real Barrier Peptivita C Blemish Serum 30ml
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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Real Barrier, Korean-market original
Peptivita C Blemish Serum 30ml is Real Barrier's Korean-market serum, sourced for the US market rather than reformulated for it.
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
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