THE LAB by BLANC DOUX
Green Flavonoid 5.0 Serum 30ml
THE LAB by BLANC DOUX Green Flavonoid 5.0 Serum 30ml is a serum that names Glucosyl Hesperidin on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet30 ml
$83.33 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- NormalCombinationDryOily
- Helps with
- A targeted step layered under a moisturizer
In stock. Arrives in 3 to 7 business days
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How it works
Glucosyl Hesperidin is named on the ingredient panel on this serum. Hesperidin is the main flavonoid of citrus peel. It is used as a plant antioxidant and for the look of surface vessels. On this panel it sits alongside Citrus Unshiu Peel Extract and Capryloyl Salicylic Acid. The peel extract of the satsuma mandarin, the gyul grown on Jeju. It carries flavonoids and aromatic oils and is used as a conditioning antioxidant extract.
Key benefits
- Glucosyl Hesperidin named on this product's own ingredient panel
- Citrus Unshiu Peel Extract on the same panel, the formula's plant extract
- Capryloyl Salicylic Acid on the same panel, the formula's exfoliant
- 30 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
How do I use this serum?
Use it after toner or essence, before moisturizer. AM and/or PM.
Where does this fit if I already use sunscreen or makeup?
Apply it before sunscreen or makeup, and let it absorb fully first so it does not pill under the next layer.
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 (24): Water, Dipropylene Glycol, Glycerin, Propanediol, 1,2-Hexanediol, Pentylene Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Citrus Unshiu Peel Extract, Glucosyl Hesperidin, Panthenol, Sodium Hyaluronate, Capryloyl Salicylic Acid, Polyglycerin-3, Hydrogenated Lecithin, Diethoxyethyl Succinate, Tromethamine, Cetearyl Olivate, Sorbitan Olivate, Polyglyceryl-10 Laurate, Xanthan Gum, PVM/MA Copolymer, Glyceryl Acrylate/Acrylic Acid Copolymer, Sodium Phytate, Sodium Citrate
Ingredient list read from thelabbyblancdoux.com on 10 September 2026.
23 of 24 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.
- 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.
- 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.
- Propanediol humectant
- Propanediol is a plant-derived glycol used in place of propylene glycol. It hydrates, carries actives into solution, and gives a lighter, less sticky slip than glycerin at the same strength.
- 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.
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- Citrus Unshiu Peel Extract plant extract
- The peel extract of the satsuma mandarin, the gyul grown on Jeju. It carries flavonoids and aromatic oils and is used as a conditioning antioxidant extract.
- 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.
- 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.
- Capryloyl Salicylic Acid exfoliant
- Capryloyl Salicylic Acid is salicylic acid with a fatty tail, sometimes sold as LHA. It stays nearer the surface than salicylic acid and works at a higher pH, so it exfoliates more evenly and more gently.
- Polyglycerin-3 humectant
- Polyglycerin-3 is a short chain of glycerin units used as a gentler, less sticky humectant. It also helps oils and water stay blended.
11 more explained
- 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.
- Diethoxyethyl Succinate solvent
- Diethoxyethyl Succinate is a solvent that helps water-resistant actives spread and sink in evenly. It also leaves a light, silky feel.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
- Cetearyl Olivate emulsifier
- Cetearyl Olivate is the water-loving half of the olive-derived emulsifier pair. With sorbitan olivate it builds emulsions whose lipid profile is close to skin's own.
- Sorbitan Olivate emulsifier
- Sorbitan Olivate is an olive-derived emulsifier, the oil-loving half of the pair sold as Olivem. It holds oil into water and leaves a light, non-waxy feel.
- 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.
- 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.
- PVM/MA Copolymer film former
- PVM/MA Copolymer is a film-forming polymer used to hold a formula in place and, in a mask, to give the peel-off film its strength.
- Glyceryl Acrylate/Acrylic Acid Copolymer film former
- This is a polymer that forms a moisture-holding film on the surface, usually supplied with glycerin and propylene glycol as a hydrating complex.
- Sodium Phytate chelator
- Sodium Phytate is a rice-derived chelator used in place of EDTA. It ties up trace metals so the formula stays stable and its colour and scent hold.
- Sodium Citrate pH adjuster
- Sodium Citrate is the salt of citric acid, used as a buffer: it holds a formula at a steady pH rather than pushing it in one direction. It is also a mild chelator.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809780881449
- Made in
- Republic of Korea
- Volume
- 30 ml
- Category
- Serum & Ampoule
- Actives
- Panthenol, Salicylic Acid, 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.
Inside the formula
Inside the formula
How to use
- Press a few drops into skin after toner, allowing the Citrus Unshiu Peel Extract and Panthenol to absorb fully before the next step; use morning and evening for brightening support.
Complete the routine
- This itemTHE LAB by BLANC DOUX Green Flavonoid 5.0 Serum 30ml$25.00

- Seal the routine in as the last stepTHE LAB by BLANC DOUX Oligo Hyaluronic Acid Calming+ Lotion 150ml$25.00

- Prep after cleansing, before the treatment stepTHE LAB by BLANC DOUX PREBIOTIC-CERA Liquid 210ml$30.00

Total for 3 items$80.00
Reviews
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THE LAB by BLANC DOUX Green Flavonoid 5.0 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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THE LAB by BLANC DOUX, Korean-market original
Green Flavonoid 5.0 Serum 30ml, THE LAB by BLANC DOUX's serum in its authentic Korean-market formula.
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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