1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Dr.Althea
Lash Boost Serum
eyes lash and brow serum
Dr.Althea
eyes lash and brow serum
Added Last edited
Fit by skin type
General, ingredient-based — not your personalized match.
See how this fits your skin
Take the skin test and I'll show you how suitable this product is for you.
Take the skin testThe Dr.Althea Lash Boost Serum is a light nourishing eyelash serum that helps condition lashes and support a fuller, healthier-looking appearance. Its lightweight formula combines peptides, panthenol, biotin, and botanical extracts to care for lashes without adding heaviness.
Lash Boost Serum is a lightweight lash and brow serum from Dr.Althea. The formula is built mainly around hydration. The ingredient list runs to 41 ingredients, each broken down in full below.
By its ingredient list the formula reads as light: water and humectants lead, with emollients kept lower in the order. Hydration is handled by Butylene Glycol, Glycerin and Hydroxypropyltrimonium Hyaluronate, humectants that pull water into the upper layers of skin rather than sealing it there.
Hydration: High. Ingredients that pull and hold water in the upper layers of skin, and here that comes from Butylene Glycol, Glycerin, Hydroxypropyltrimonium Hyaluronate and Ethylhexylglycerin.
Firmness signalling: Moderate. Peptides and growth factors that signal for collagen support, and here that comes from Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Tetrapeptide-7 and Nonapeptide-1.
On richness alone it suits Balanced, Combination (oily) and Oily skin best, and is the least natural fit for Dry and Combination (dry) skin. Nothing in the list is flagged as a common irritant, which is a reasonable starting point for reactive skin — though a patch test is still the only way to know.
The formula contributes little or nothing on barrier support, antioxidant protection, oil control and cell renewal. That is not a fault — most products are not meant to do everything — but if one of those is your priority, this is not the product that will address it.
Reading the full list, the formula is fragrance-free, essential-oil-free, no drying alcohol, paraben-free, silicone-free and microplastic-free. Those claims come from the ingredient list itself, not from the packaging.
It can be used morning and evening. In a routine it goes before moisturiser. Tap along the orbital bone with your ring finger; product migrates upward on its own.
This summary is generated from the product's ingredient list. It is not a review, it is not the brand's own marketing claims, and it does not replace advice from a dermatologist.
Drawn purely from the ingredient list
Scored on how rich or light the formula reads from its INCI order.
No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.
Based on the curated benefits documented for this product's ingredients.
Boosts collagen and cell turnover to reduce fine lines and wrinkles
Attracts and locks in moisture to keep skin plump and dewy
Calms redness, irritation, and inflammation for sensitive skin
Brightens and balances complexion for a more uniform appearance
Regulates sebum production to reduce shine and greasiness
None of the ingredients in this formula are associated with these benefits. This is not unusual, as most products are designed to target a limited number of concerns.
The actives, UV filters and benefit-carrying ingredients in this formula, in the order they are listed.
1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
2nd on the list, which puts it at an estimated 5–20% of the formula.
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
3rd on the list, which puts it at an estimated 5–20% of the formula.
1,2-Dihydroxypentane
5th on the list, which puts it at an estimated 2–10% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
9th on the list, which puts it at an estimated 1–5% of the formula.
Portulaca Oleracea Extract is an extract of the whole plant of the Purselane, Portulaca oleracea L., Portulacaceae
11th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1,2-Propanediol, 3-(2-ethylhexyloxy)
12th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Maltodextrin
13th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Protein hydrolyzates, vegetable. Substance obtained by acidic, alkaline, or enzymatic hydrolysis of mixed vegetables composed primarily of amino acids, peptides, and proteins. It may contain impurities consisting chiefly of carbohydrates and lipids along with smaller quantities of miscellaneous organic substances of biological origin
16th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae
17th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Houttuynia Cordata Extract is an extract of the herb, Houttuynia cordata, Saururaceae
21st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-benzopyran-6-ol; .alpha.-tocopherol; Vitamin E
22nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1H-Thieno[3,4-d]imidazole-4-pentanoic acid, hexahydro-2-oxo-, [3aS-(3a.alpha.,4.beta.,6a.alpha.)]-
Each axis is scored from the ingredients present and how high up the list they sit.
Ingredients that pull and hold water in the upper layers of skin
Lipids and repair signals that support skin barrier integrity
Ingredients that mop up free radicals from UV and pollution
Ingredients that moderate sebum or absorb shine
Ingredients that act on uneven tone and post-inflammatory marks
Ingredients aimed at visible redness and reactivity
Retinoids, acids and enzymes that speed surface turnover
Peptides and growth factors that signal for collagen support
"Active" here means an ingredient carrying a recorded active type or a recognised UV filter.
Solvents, emollients, texture agents and preservatives — the formula that carries the actives.
Read from the full ingredient list. A brand's own claim may differ.
Judged by the same curated rules our routine checker uses. It reads the ingredients, not the label.
Best kept to separate routines — one in the morning, one at night, or on alternate days.
This product is the "Eye" step.
Flags to check, not verdicts. None of this is medical advice — if you are pregnant, breastfeeding or treating a skin condition, ask a doctor.
Most ingredients do more than one job, so these counts add up to more than the 41 ingredients on the label.
Amino-acid chains that signal for repair or firmness
Changes how skin behaves rather than how it feels
Botanical material, usually for antioxidants or scent
Sets the thickness, spread and stability of the formula
Forms a film that slows water loss
Dissolves and carries everything else
Draws water into the upper layers of skin
Sets the acidity the formula needs to work
Neutralises free radicals from UV and pollution
Calms visible redness and irritation
Lifts oil and dirt, or holds oil and water together
Binds trace metals that would otherwise spoil the formula
Loosens or dissolves dead surface cells
Every ingredient on the label, in order, with what it does and roughly how much of it is likely to be there.
1st on the list, which puts it at an estimated 30–80% of the formula.
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
2nd on the list, which puts it at an estimated 5–20% of the formula.
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
3rd on the list, which puts it at an estimated 5–20% of the formula.
1,2-Dihydroxypentane
4th on the list, which puts it at an estimated 2–10% of the formula.
5th on the list, which puts it at an estimated 2–10% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
6th on the list, which puts it at an estimated 2–10% of the formula.
2,2-Dimethyl-2-(2'-propenamido)ethanesulfonic acid, sodium salt, homopolymer
7th on the list, which puts it at an estimated 1–5% of the formula.
Hydroxypropyl Methylcellulose Stearoxy Ether is the reaction product of stearyl glycidyl ether and Hydroxypropyl Methylcellulose
8th on the list, which puts it at an estimated 1–5% of the formula.
Cellulose, 2-hydroxyethyl ether
9th on the list, which puts it at an estimated 1–5% of the formula.
Portulaca Oleracea Extract is an extract of the whole plant of the Purselane, Portulaca oleracea L., Portulacaceae
10th on the list, which puts it at an estimated 1–5% of the formula.
Hyaluronic acid, 2-hydroxy-3-(N,N,N-trimethylammonio)propyl chloride derivatives
11th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1,2-Propanediol, 3-(2-ethylhexyloxy)
12th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Maltodextrin
13th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Protein hydrolyzates, vegetable. Substance obtained by acidic, alkaline, or enzymatic hydrolysis of mixed vegetables composed primarily of amino acids, peptides, and proteins. It may contain impurities consisting chiefly of carbohydrates and lipids along with smaller quantities of miscellaneous organic substances of biological origin
14th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Disodium dihydrogen ethylenediaminetetraacetate
15th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1,3-Propanediol, 2-amino-2-(hydroxymethyl)-
16th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Centella Asiatica Extract is the extract of the whole plant Hydrocotyl, Centella asiatica L., Apiaceae
17th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Houttuynia Cordata Extract is an extract of the herb, Houttuynia cordata, Saururaceae
18th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Disodium hydrogenorthophosphate
19th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sorbitan, monooctadecanoate, poly(oxy-1,2-ethanediyl) derivs.
20th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sodium dihydrogenorthophosphate
21st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-benzopyran-6-ol; .alpha.-tocopherol; Vitamin E
22nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1H-Thieno[3,4-d]imidazole-4-pentanoic acid, hexahydro-2-oxo-, [3aS-(3a.alpha.,4.beta.,6a.alpha.)]-
23rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Butanamide, 2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethyl-, (2R)-; dl-Panthenol
24th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Glycine Soja Seed is an extract of the Soybean, Glycine soja, Leguminosae
25th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Coix Lacryma-Jobi Ma-yuen Seed Extract is an extract of the seeds of Job's Tears, Coix lacryma-jobi L. var. ma-yuen, Poaceae
26th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sesamum Indicum Seed Extract is an extract of the seeds of the Sesame, Sesamum indicum L., Pedaliaceae
27th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Oryza Sativa Extract is an extract of the grains of the Rice, Oryza sativa L., Poaceae
28th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Terminalia Ferdinandiana Fruit Extract is an extract of the fruit of the Terminalia ferdinandiana, Combretaceae
29th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Aloe Ferox Leaf Extract is an extract of the leaves of Aloe ferox, Liliaceae
30th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Acetyl hexapeptide-8 is the synthetic peptide consisting of arginine, methionine, and acetylated glutamic acid residues
31st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Copper Tripeptide-1 is a copper complex of Tripeptide-1
32nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Palmitoyl Tetrapeptide-7 is the reaction product of palmitic acid and Tetrapeptide-7
33rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Nonapeptide-1 is a synthetic nonapeptide derived from arginine, lysine, methionine, phenylalanine, proline, tryptophan and valine
34th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
35th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Tripeptide-1 is a synthetic peptide containing glycine, histidine, and lysine
36th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Lysine, synthetic pentapeptide with serine, and threonine, hexadecanoyl derivatives
37th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Palmitoyl Tripeptide-5 is the reaction product of palmitic acid and Tripeptide-5
38th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
L-Lysine, N-(1-oxohexadecyl)glycyl-L-histidyl-
39th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Glycine, N-(1-oxohexadecyl)-L-valylglycyl-L-valyl-L-alanyl-L-prolyl-
40th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hexapeptide-9 is a synthetic peptide containing Glutamine, Glycine and Proline residues
41st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Pentapeptide-3 is a synthetic peptide containing alanine, arginine, isoleucine, glycine and proline
Products in the same category that share this formula's distinguishing ingredients.
ETUDE
Shares 7 key ingredients with Lash Boost Serum: Water, Butylene Glycol, Glycerin, Ethylhexylglycerin, Panthenol
Benton
Shares 6 key ingredients with Lash Boost Serum: Butylene Glycol, Acetyl Hexapeptide-8, Houttuynia Cordata Extract, Panthenol, Glycerin
The Ordinary
Shares 5 key ingredients with Lash Boost Serum: Glycerin, Butylene Glycol, Panthenol, Maltodextrin, Ethylhexylglycerin
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 SEED EXTRACT, COIX LACRYMA-JOBI MA-YUEN SEED EXTRACT, SESAMUM INDICUM SEED EXTRACT, ORYZA SATIVA 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.
PANTHENOL, ACETYL HEXAPEPTIDE-8, COPPER TRIPEPTIDE-1, PALMITOYL TETRAPEPTIDE-7, DIPEPTIDE DIAMINOBUTYROYL BENZYLAMIDE DIACETATE, TRIPEPTIDE-1, PALMITOYL PENTAPEPTIDE-4, PALMITOYL TRIPEPTIDE-1, PENTAPEPTIDE-3.
Apply an appropriate amount onto the brush and rounded tip. Sweep along the lashes from root to ends.
Judged on how rich the formula reads from its ingredient list, it suits Balanced, Combination (oily), Oily skin best. It is the least natural fit for Dry, Combination (dry) skin.
No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.
One ingredient could feed malassezia: Polysorbate 60. That describes the yeast's food supply, not a prediction that it will cause a breakout.
Nothing in this formula is on the standard pregnancy-caution list. That is not medical clearance — check anything you use daily with your doctor or midwife.
Yes. Reading the full ingredient list, this formula is fragrance-free.
No. Reading the full ingredient list, this formula is no drying alcohol.
Yes. Reading the full ingredient list, this formula is silicone-free.
No. Reading the full ingredient list, this formula is essential-oil-free.
Yes. Reading the full ingredient list, this formula is paraben-free.
It layers well with Vitamin C (L-ascorbic acid), Retinoids (retinol, retinal), AHAs (glycolic, lactic), BHA (salicylic acid), PHAs (gluconolactone), Azelaic acid. Take more care combining it with Benzoyl peroxide — use them in separate routines or on alternate days.
Use it morning and evening, before moisturiser.
It lists 41 ingredients, of which 9 are recorded as actives.
Dr.Althea.
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