Where does this cream go in my routine?

As the last skincare step, morning and evening, over serum. Anything thinner than a cream goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Adenosine and not three changes at once.

Does this cream contain fragrance?

Yes. The ingredient list names Fragrance. It sits on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this cream is not the one.

What else is on the list besides Adenosine?

Allantoin, Acetyl Hexapeptide-8 and Palmitoyl Pentapeptide-4. The order they are printed in on this cream's panel is the order on the box, so you can see where Adenosine sits relative to them. Further down the same panel: Carnosine, Ceramide NP and Collagen.

BRTC

Extra-Firming Cream 50ml

Name: BRTC Extra-Firming Cream 50ml
Brand: BRTC
SKU: 7618613307
Price: 65.0 USD
Availability: InStock

BRTC Extra-Firming Cream is a 50ml cream with Adenosine, used as the last skincare step, morning and evening, over serum.

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$65.00

50 ml

$130.00 per 100 ml

Korean-market formula
Ships from California or direct from Korea
Korean barcode and batch code intact

Suited to: Congested skinUneven textureDry skinCompromised barrier

Helps with: Shoppers looking for Adenosine in a creamRoutines that want Adenosine and Allantoin in one stepFilling the cream step with a Korean-market formula

One-time purchase

$65.00

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$58.50

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Key benefits

Adenosine, the active this cream is built around
Allantoin on the same list, an active
Acetyl Hexapeptide-8 and Palmitoyl Pentapeptide-4 on the same list, peptides
Carnosine on the same list, an antioxidant
Ceramide NP and Collagen further down the same list
Aesculus Hippocastanum (Horse Chestnut) Extract and Centella Asiatica Extract further down the same list

Key actives

20Acetyl Hexapeptide-8peptide

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. The panel names it twentieth on this cream's list, beside Adenosine.

All products with Acetyl Hexapeptide-8

21Adenosineactive

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. On this cream's own ingredient list it is named twenty-first.

All products with Adenosine

22Allantoinactive

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. It is named twenty-second on this cream's list, alongside Adenosine.

All products with Allantoin

25Carnosineantioxidant

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. It is named twenty-fifth on this cream's list, alongside Adenosine.

All products with Carnosine

41Palmitoyl Pentapeptide-4peptide

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. It is named forty-first on this cream's list, alongside Adenosine.

All products with Palmitoyl Pentapeptide-4

Inside the formula

Ingredients declared

Last

Fragrance on the list

20Acetyl Hexapeptide-825Carnosine41Palmitoyl Pentapeptide-4

20Acetyl Hexapeptide-8
25Carnosine
41Palmitoyl Pentapeptide-4

Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.

1 of 4

52 of 55 explained

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.
Cyclopentasiloxane silicone: Cyclopentasiloxane is a volatile silicone: it spreads a formula thin and smooth then evaporates, leaving no residue. It is the silicone behind a dry, powdery primer finish.
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.
Dicaprylyl Carbonate emollient: Dicaprylyl Carbonate is a light, fast-spreading emollient with a notably dry finish. It is chosen where a formula has to spread thin without leaving a heavy film.
Hydrogenated Poly(c6-14 Olefin) emollient: Hydrogenated Poly(C6-14 Olefin) is a synthetic hydrocarbon emollient. It gives a smooth, silicone-like glide and is completely stable, so it does not go rancid.
Methylpropanediol humectant: Methylpropanediol is a small glycol used to hydrate and to help water-soluble actives penetrate the outer layer of skin more evenly. It leaves almost no tack, which suits watery textures.
Dimethicone silicone: Dimethicone is the most used cosmetic silicone. It forms a breathable film that smooths the surface, slows water leaving skin, and gives the slip that makes a primer or cream feel silky. It is inert and does not penetrate.
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer silicone: A silicone elastomer powder. It changes how light falls on skin so texture looks softer, absorbs a little oil, and leaves a dry velvet finish.
Caprylyl Methicone silicone: Caprylyl Methicone is a silicone with a fatty tail, so it mixes with plant oils as well as with silicones. It gives a dry slip and helps disperse powders.
Cetyl PEG/PPG-10/1 Dimethicone silicone: A silicone emulsifier used to hold water inside an oil or silicone phase. It is the standard emulsifier in a cushion or a silicone-based primer.
PEG-10 Dimethicone silicone: PEG-10 Dimethicone is a silicone with a water-loving chain attached, so it bridges the silicone and water phases. It is used as an emulsifier and to give a light, silky feel.
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.

40 more explained

Magnesium Sulfate mineral: Magnesium Sulfate is Epsom salt, used as a mineral salt in the water phase. Despite the name it is not a cleansing sulfate and does not foam.
Aesculus Hippocastanum (horse Chestnut) Extract plant extract: Horse chestnut extract, carrying escin. It is one of the classic plant ingredients used for the look of puffiness and surface vessels.
Centella Asiatica Extract plant extract: Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.
Ficus Carica (fig) Fruit Extract plant extract: Fig Fruit Extract carries fruit sugars, mild acids and a protein-digesting enzyme. It is used as a hydrating extract with a light smoothing effect.
Carthamus Tinctorius (safflower) Seed Oil emollient: Safflower seed oil, among the highest-linoleic plant oils. High-linoleic oils feel lighter and absorb faster than high-oleic ones.
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.
Oenothera Biennis (evening Primrose) Oil emollient: Evening primrose oil, the main plant source of gamma-linolenic acid. It absorbs fast and oxidises fast, so formulas pair it with an antioxidant.
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.
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.
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.
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.
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.
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.
Ceramide Np barrier lipid: Ceramide NP is the most used cosmetic ceramide, the same class of lipid that makes up roughly half the mortar between cells in the outer layer of skin. Added to a cream it slots into that structure, which is why ceramide formulas feel less leaky rather than merely greasy.
Cetearyl Alcohol fatty alcohol: Cetearyl Alcohol is a waxy solid, not the drying kind of alcohol. It is a blend of cetyl and stearyl alcohols used to thicken a cream and keep oil and water from separating, and it softens skin as it does so.
Citric Acid pH adjuster: Citric Acid is used in tiny amounts to bring a formula to the pH its actives need, not as an exfoliant at that level. It is an AHA, so at much higher concentrations it can also exfoliate.
Collagen protein: Collagen is the structural protein that makes up most of the dermis. Applied on top it is far too large to enter skin, so in a formula it works as a humectant and a smoothing film former.
Ethylhexylglycerin preservative booster: Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
Fructose humectant: Fructose is a simple sugar used as a light humectant. It holds water in the outer layer and often arrives as part of a fruit or honey extract.
Glucose humectant: Glucose is a simple sugar used as a humectant and as food for the ferment ingredients in the same formula. It hydrates mildly and adds a soft slip.
Hydrogenated Phosphatidylcholine emulsifier: Hydrogenated Phosphatidylcholine is the stabilised form of the main lecithin phospholipid. It builds the liposome shells that hold an active together in a formula.
Hydrogenated Polydecene emollient: Hydrogenated Polydecene is a synthetic hydrocarbon emollient used in place of mineral oil. It is stable, has no scent, and gives a cushioned slip without oxidising.
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.
Isononyl Isononanoate emollient: Isononyl Isononanoate is a branched ester used as a dry emollient. It spreads far for its weight and leaves almost no residue, which is why it appears in formulas that have to feel weightless.
Isostearyl Isostearate emollient: Isostearyl Isostearate is a branched ester, which is why it stays liquid and feels cushioned rather than waxy. It is used in balms, sticks and lip products.
Mannose sugar: Mannose is a simple sugar closely related to glucose. It is used as a humectant and as a building block in the polysaccharide blends that hold water on the surface.
Myristic Acid fatty acid: Myristic Acid is a saturated fatty acid used to thicken and, with a base added, to build the foam in a soap-style cleanser.
Palmitic Acid fatty acid: Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.
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.
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.
Polyglyceryl-10 Stearate emulsifier: Polyglyceryl-10 Stearate is a mild sugar-derived emulsifier that holds oil into water and thickens slightly.
Polyglyceryl-2 Stearate emulsifier: Polyglyceryl-2 Stearate is a plant-derived emulsifier used to stabilise creams with a light finish.
Polyglyceryl-6 Polyricinoleate emulsifier: A castor-derived polyglycerin emulsifier for water-in-oil systems, where water droplets have to stay suspended inside an oil phase.
Polyquaternium-51 film former: Polyquaternium-51 is a polymer, sometimes sold as Lipidure, built on the same phosphorylcholine structure as a cell membrane. It holds water in a film on the surface and gives a distinctive soft, dry finish.
Polysorbate 20 emulsifier: Polysorbate 20 is a solubiliser: it dissolves small amounts of oil or fragrance into a watery formula so nothing separates or floats.
Sodium Stearoyl Glutamate emulsifier: Sodium Stearoyl Glutamate is an amino-acid-derived emulsifier. It holds oil and water together and is mild enough for formulas built for reactive skin.
Squalane emollient: Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.
Stearic Acid fatty acid: Stearic Acid is a saturated fatty acid from plant fats, and one of the three lipid classes skin's own barrier is built from. In a formula it thickens, stabilises the emulsion and can be turned into a soap-style cleanser by adding a base.
Fragrance fragrance: Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
Potassium Sorbate preservative: Potassium Sorbate is a preservative that holds off yeast and mould in acidic formulas. It is almost always used with sodium benzoate, because neither covers the whole range of microbes alone.

How it works

The Extra-Firming Cream is a 50ml cream, used as the last skincare step, morning and evening, over serum. The active it is built around is Adenosine, named twenty-first on its own ingredient list. The same list carries Allantoin, Acetyl Hexapeptide-8 and Palmitoyl Pentapeptide-4, so the active is not the only thing on it worth naming. How much of the Adenosine stays on the skin, and for how long, is decided by the cream format rather than by the list alone. BRTC sells this Adenosine cream in Korea, and this is that version.

How to use

Take a small scoop of Extra-Firming Cream 50ml and warm it between your palms before pressing it into the face and neck as the last step of your routine.

Worth knowing

Patch test this cream on a small area and wait a day before using it more widely, especially with Adenosine on the list.
This list names Fragrance, so skip it if fragrance components are something you avoid.

Complete the routine

This itemBRTC Extra-Firming Cream 50ml$65.00
From the same Korean-market lineBRTC Jasmine Water BB Cream 60g (SPF 30/PA++)$50.00
Seal the routine in as the last stepBRTC Time 8 Lift Toning Collagen Cream 80ml$47.50

Total for 3 items$162.50

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BRTC Extra-Firming Cream 50ml

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BRTC, Korean-market original

The Original Korean Formula cream from BRTC, 50ml formulated with Adenosine and Allantoin, shipped from California or direct from Korea.

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 skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic
In skin, different peptides can encourage different things, from collagen formation to a reduction in inflammation to helping with wound healing depending on their structure.
Whitney Hovenic, MDDouble board-certified dermatologist and Mohs surgeon, Women's Health