Lash Boost Serum
Five peptides on one list, Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Tetrapeptide-7 and Nonapeptide-1 among them, with Biotin and Panthenol. A water-gel worn along the lash line, last thing at night. Korean-market formula.
No reviews yet- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Dehydrated skinSensitive skinSkin that has lost bounceDull, uneven tone
- Helps with
- Shoppers looking for Acetyl Hexapeptide-8 in an eye serumRoutines that want Acetyl Hexapeptide-8 and Copper Tripeptide-1 in one stepFilling the eye serum step with a Korean-market formulaAnyone who wants the Acetyl Hexapeptide-8 eye serum sold on Korean shelves
Sold out.
Tell us where to send it
One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
The Lash Boost Serum is an eye serum, used after toner and before your eye cream or moisturizer, morning and evening. The peptide it is built around is Acetyl Hexapeptide-8, named thirtieth on its own ingredient list. The same list carries Copper Tripeptide-1, Palmitoyl Tetrapeptide-7 and Nonapeptide-1, so the peptide is not the only thing on it worth naming. How much of the Acetyl Hexapeptide-8 stays on the skin, and for how long, is decided by the eye serum format rather than by the list alone. This is the Original Korean Formula, the eye serum Dr.Althea sells in Korea, Acetyl Hexapeptide-8 and all.
Key benefits
- Acetyl Hexapeptide-8, the peptide this eye serum is built around
- Copper Tripeptide-1, Palmitoyl Tetrapeptide-7, Nonapeptide-1 and Dipeptide Diaminobutyroyl Benzylamide Diacetate on the same list, peptides
- Tripeptide-1 and Palmitoyl Pentapeptide-4 further down the same list
- Palmitoyl Tripeptide-5 and Palmitoyl Tripeptide-1 further down the same list
- Acetyl Hexapeptide-8 named thirtieth on the manufacturer list printed on this page
- The Korean-market release of this eye serum, confirmed against its Korean barcode
Inside the formula
Inside the formula
Dr. Althea Lash Boost Serum
Where does this eye serum go in my routine?
After toner and before your eye cream or moisturizer, morning and evening. Anything thinner than an eye serum 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 Acetyl Hexapeptide-8 and not three changes at once.
Is this the Korean-market eye serum or a US version?
The Korean-market one, Acetyl Hexapeptide-8 and all. We match this eye serum to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Acetyl Hexapeptide-8?
Copper Tripeptide-1, Palmitoyl Tetrapeptide-7 and Nonapeptide-1. The order they are printed in on this eye serum's panel is the order on the box, so you can see where Acetyl Hexapeptide-8 sits relative to them. Further down the same panel: Dipeptide Diaminobutyroyl Benzylamide Diacetate, Tripeptide-1 and Palmitoyl Pentapeptide-4.
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 (41): Water, Butylene Glycol, Pentylene Glycol, 1,2-hexanediol, Glycerin, Sodium Polyacryloyldimethyl Taurate, Hydroxypropyl Methylcellulose Stearoxy Ether, Hydroxyethylcellulose, Portulaca Oleracea Extract, Hydroxypropyltrimonium Hyaluronate, Ethylhexylglycerin, Maltodextrin, Hydrolyzed Vegetable Protein, Disodium Edta, Tromethamine, Centella Asiatica Extract, Houttuynia Cordata Extract, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Tocopherol, Biotin, Panthenol, Glycine Soja (soybean) Seed Extract, Coix Lacryma-jobi Ma-yuen Seed Extract, Sesamum Indicum (sesame) Seed Extract, Oryza Sativa (rice) Extract, Terminalia Ferdinandiana Fruit Extract, Aloe Ferox Leaf Extract, Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Tetrapeptide-7, Nonapeptide-1, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Tripeptide-1, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-5, Palmitoyl Tripeptide-1, Palmitoyl Hexapeptide-12, Hexapeptide-9, Pentapeptide-3
Ingredient list read from doctoraltheaglobal.com on 19 August 2026.
40 of 41 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.
- 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.
- 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.
- 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.
- 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.
- Sodium Polyacryloyldimethyl Taurate thickener
- Sodium Polyacryloyldimethyl Taurate is a polymer thickener that holds a gel stable even with a lot of salt or acid in the formula.
- Hydroxypropyl Methylcellulose Stearoxy Ether thickener
- Modified cellulose with a fatty stearyl chain added, so it thickens and emulsifies at once. It gives a cushioned, slightly bouncy gel texture.
- Hydroxyethylcellulose thickener
- Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.
- 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.
- Hydroxypropyltrimonium Hyaluronate humectant
- Hydroxypropyltrimonium Hyaluronate carries a positive charge, and skin carries a slight negative one, so it is attracted to the surface and stays through rinsing. It is the hyaluronic used where a formula gets washed off.
- 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.
- Maltodextrin film former
- Maltodextrin is a starch-derived sugar chain used to carry powdered extracts and to form a light film. It also gives a soft, smoothing feel.
28 more explained
- Hydrolyzed Vegetable Protein protein
- Hydrolyzed Vegetable Protein is plant protein cut into water-soluble fragments. It forms a light conditioning film that holds water at the surface.
- 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.
- 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.
- 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.
- Houttuynia Cordata Extract plant extract
- Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin.
- Disodium Phosphate pH adjuster
- Sodium Phosphate is a buffer salt. It holds a formula at a steady pH so its actives stay in the form they work in.
- Polysorbate 60 emulsifier
- Polysorbate 60 is a water-loving emulsifier used with a fatty co-emulsifier to build stable lotions and creams.
- 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.
- Biotin vitamin
- Biotin is vitamin B7. In skincare it is a conditioning vitamin, most often in hair and scalp formulas.
- 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.
- Glycine Soja (soybean) Seed Extract plant extract
- Soybean Seed Extract carries isoflavones, plant sterols and soy proteins. It is used as a conditioning antioxidant extract.
- Coix Lacryma-jobi Ma-yuen Seed Extract plant extract
- Adlay, or Job tears, a grain used in both Korean cooking and Korean herbal practice. The seed extract carries starch-derived sugars and amino acids.
- Sesamum Indicum (sesame) Seed Extract plant extract
- Sesame seed extract. It carries sesamol and sterols and is used as a conditioning, antioxidant-rich extract.
- Oryza Sativa (rice) Extract plant extract
- Rice Extract is the anchor of the Korean rice-skincare category. It carries starches, amino acids and ferulic acid, and it is used for the look of dullness and for a soft, blurred finish.
- Terminalia Ferdinandiana Fruit Extract plant extract
- Kakadu plum fruit extract, the highest natural source of vitamin C known. It is used as a plant antioxidant.
- Aloe Ferox Leaf Extract plant extract
- Cape aloe leaf extract, a different aloe species from aloe vera. It carries the same class of water-holding polysaccharides and is used as a hydrating extract.
- 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.
- 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.
- Palmitoyl Tetrapeptide-7 peptide
- Palmitoyl Tetrapeptide-7 is a four-amino-acid peptide with a fatty tail, used for the look of fine lines. With palmitoyl tripeptide-1 it forms the pairing sold as Matrixyl 3000.
- 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.
- Dipeptide Diaminobutyroyl Benzylamide Diacetate peptide
- This is a two-amino-acid peptide, sold as Syn-Ake, used for the look of expression lines. Its structure was modelled on a component of snake venom, though nothing of the venom itself is in it.
- Tripeptide-1 peptide
- Tripeptide-1 is the copper-free version of the classic three-amino-acid peptide. It is used for the look of firmness in formulas that avoid copper's blue tint.
- 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-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.
- 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 Hexapeptide-12 peptide
- Palmitoyl Hexapeptide-12 is a fatted six-amino-acid peptide used for the look of firmness, usually as part of a multi-peptide blend.
- Hexapeptide-9 peptide
- Hexapeptide-9 is a six-amino-acid peptide used for the look of firmness and elasticity. It is water soluble and appears in peptide blends rather than alone.
- Pentapeptide-3 peptide
- Pentapeptide-3 is a five-amino-acid peptide used for the look of expression lines. It is water soluble and is supplied as one part of a peptide blend rather than alone.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809447256672
- Made in
- Republic of Korea
- Category
- Eye Care
- Actives
- Centella Asiatica, Heartleaf (Houttuynia Cordata), Panthenol, Peptides, Rice Extract
- 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
- Use the Lash Boost Serum at the end of the evening routine, on clean dry lashes.
- One pass of the applicator along the upper lash line, the way a liquid liner goes on. One coat is the dose, and a second pass over the same lashes does not add to it.
- Everything else in the routine goes on first. The lashes need to be clean and completely dry when it goes on, because eye cream, oil or leftover mascara gives it a film to sit on instead of the lash line.
- Once a day, in the evening. Do not run it along the waterline or let it into the eye itself; the base of the lashes is the closest it belongs.
Worth knowing
- Patch test this eye serum on a small area and wait a day before using it more widely, especially with Acetyl Hexapeptide-8 on the list.
- Introduce this eye serum on its own for the first week, so anything your skin does is traceable to the Acetyl Hexapeptide-8 rather than to three changes at once.
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Dr. Althea Lash Boost Serum
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Dr.Althea, Korean-market original
The Original Korean Formula eye serum from Dr.Althea, formulated with Acetyl Hexapeptide-8 and Copper Tripeptide-1, shipped from California or direct from Korea.
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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