La Mer The Treatment Lotion ingredients, decoded

What La Mer The Treatment Lotion is mostly made of, which ingredients do the work and what to watch for — based on the ingredient list the brand publishes.

La Mer
The Treatment Lotion
더 트리트먼트 로션
What the brand says it does

Serum-strength watery lotion that floods skin with hydration and energy, with visible youth-boosting benefits throughout the day.

70ingredients
3key ingredients
3worth knowing

What it targets

  • HydrationGlycerin, Sodium Hyaluronate, Urea +2
  • Wrinkles & firmnessCaffeine, Acetyl Hexapeptide-8

Based on which ingredients are in it, how high up the list they are, and whether they are key actives.

Key ingredients

Sodium Hyaluronate#26
소듐하이알루로네이트
Above the 1% line

The salt form of hyaluronic acid; the version most products actually use.

Hydration

Ingredient guide →
Acetyl Hexapeptide-8#30
아세틸헥사펩타이드-8
Above the 1% line

Peptide (Argireline) marketed to soften expression lines.

Wrinkles & firmness

Ingredient guide →
Urea#37
우레아
Above the 1% line

Humectant at low levels; softens rough, thick skin at higher levels.

HydrationExfoliation

Ingredient guide →

Worth knowing

  • Contains fragrance or essential oils (Eucalyptus Globulus Leaf Oil, Fragrance). Skip it if fragrance irritates your skin.
  • Fragrance allergens listed: Limonene, Linalool, Hydroxycitronellal, Citronellol, Geraniol. In the EU these must be named when above 0.001% in leave-on or 0.01% in rinse-off products.
  • Alcohol Denat. appears at #58, lower down the list, so the amount is likely small.

What most of it is made of

  1. WaterBase
  2. Algae ExtractPlant extract
  3. GlycerinHumectant
  4. Methyl Gluceth-20Humectant
  5. Bis-PEG-18 Methyl Ether Dimethyl SilaneSilicone

1% line: from Chlorphenesin (#68) onward, ingredients are probably at 1% or less. Chlorphenesin is limited to 0.3% in the EU, and ingredients at 1% or less may be listed in any order. Products made only for other markets can use more.

Full ingredient list, decoded (70)
1Water정제수The base of most creams and toners; dissolves the water-loving ingredients.Base
2Algae Extract조류추출물Seaweed extract that adds moisture and conditioning.Plant extract
3Glycerin글리세린A classic humectant that draws water into the outer skin layer. Well tolerated by almost everyone.Humectant
4Methyl Gluceth-20메틸글루세스-20Humectant that helps skin hold on to water.Humectant
5Bis-PEG-18 Methyl Ether Dimethyl Silane비스-피이지-18메틸에터다이메틸실레인Water-soluble silicone that improves feel and spreadability.Silicone
6Sucrose수크로오스Sugar; humectant, or a gentle scrub in sugar scrubs.Humectant
7Yeast Extract효모추출물Ferment ingredient made with yeast or bacteria; used for conditioning.Ferment
8Sesamum Indicum Seed Oil참깨오일Plant oil that softens and nourishes dry skin.Plant oil
9Medicago Sativa Seed Powder자주개자리씨가루Plant extract, usually present in small amounts for conditioning.Plant extract
10Prunus Amygdalus Dulcis Seed Meal스위트아몬드씨드케이크Plant extract, usually present in small amounts for conditioning.Plant extract
11Helianthus Annuus Seedcake해바라기씨드케이크Plant extract, usually present in small amounts for conditioning.Plant extract
12Eucalyptus Globulus Leaf Oil유칼립투스잎오일Eucalyptus essential oil used for scent; can irritate sensitive skin.Fragrance
13Sodium Gluconate소듐글루코네이트Binds metal ions so the formula stays stable.Chelating agent
14Copper Gluconate카퍼글루코네이트Mineral salt used for skin conditioning or texture.Mineral salt
15Calcium Gluconate칼슘글루코네이트Mineral salt used for skin conditioning or texture.Mineral salt
16Magnesium Gluconate마그네슘글루코네이트Mineral salt used for skin conditioning or texture.Mineral salt
17Zinc Gluconate징크글루코네이트Mineral salt used for skin conditioning or texture.Mineral salt
18Tocopheryl Succinate토코페릴석시네이트Antioxidant that protects the formula from oxidation.Antioxidant
19Niacin나이아신Vitamin B3 (nicotinic acid) — not the same as niacinamide, and it can cause brief redness.Skin conditioning
20Sesamum Indicum Seed Powder검은깨가루Plant extract, usually present in small amounts for conditioning.Plant extract
21Citrus Aurantifolia Peel Extract라임껍질추출물Plant extract, usually present in small amounts for conditioning.Plant extract
22Laminaria Digitata Extract호스테일켈프추출물Plant extract, usually present in small amounts for conditioning.Plant extract
23Laminaria Saccharina Extract슈가켈프추출물Plant extract, usually present in small amounts for conditioning.Plant extract
24Plankton Extract플랑크톤추출물Plant extract, usually present in small amounts for conditioning.Plant extract
25Palmaria Palmata Extract팔손이분홍치추출물Plant extract, usually present in small amounts for conditioning.Plant extract
26Sodium Hyaluronate소듐하이알루로네이트The salt form of hyaluronic acid; the version most products actually use.Ingredient guide →Humectant
27Butylene Glycol부틸렌글라이콜Light humectant and solvent that helps other ingredients spread and absorb.Humectant
28Caffeine카페인Temporarily tightens and reduces puffiness, popular in eye creams.Active ingredient
29Dipotassium Glycyrrhizate다이포타슘글리시리제이트Licorice-derived soothing ingredient.Soothing
30Acetyl Hexapeptide-8아세틸헥사펩타이드-8Peptide (Argireline) marketed to soften expression lines.Ingredient guide →Active ingredient
31Glycereth-26글리세레스-26Humectant that helps skin hold on to water.Humectant
32Alcaligenes Polysaccharides알칼리게네스폴리사카라이드Humectant that helps skin hold on to water.Humectant
33Trehalose트레할로오스Sugar humectant that helps skin hold water.Humectant
34Lactobacillus Ferment락토바실러스발효물Ferment ingredient made with yeast or bacteria; used for conditioning.Ferment
35Sodium Chloride소듐클로라이드Salt; thickens cleansers and stabilises some emulsions.Thickener / texture
36Tourmaline토르말린Thickener, film-former or powder that sets the texture and finish.Thickener / texture
37Urea우레아Humectant at low levels; softens rough, thick skin at higher levels.Ingredient guide →Humectant
38Sodium PCA소듐피씨에이Part of the skin's own natural moisturizing factor; strong humectant.Humectant
39Glycine Soja (Soybean) Protein돌콩단백질Skin-conditioning ingredient.Skin conditioning
40Glycosaminoglycans글라이코사미노글리칸Humectant that helps skin hold on to water.Humectant
41Glycine Soja (Soybean) Seed Extract돌콩추출물Plant extract, usually present in small amounts for conditioning.Plant extract
42Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate테트라데실아미노부티로일발릴아미노부티릭우레아트라이플루오로아세테이트Soothing ingredient that calms visible redness.Soothing
43Caprylyl Glycol카프릴릴글라이콜Humectant with preservative-boosting action.Preservative
44PEG-8피이지-8Humectant that helps skin hold on to water.Humectant
45Magnesium Chloride마그네슘클로라이드Mineral salt used for skin conditioning or texture.Mineral salt
46Calcium Chloride칼슘클로라이드Mineral salt used for skin conditioning or texture.Mineral salt
47Sodium Sulfate소듐설페이트Mineral salt used for skin conditioning or texture.Mineral salt
48Potassium Phosphate포타슘포스페이트Adjusts or buffers the pH of the formula.pH adjuster
49Potassium Nitrate포타슘나이트레이트Mineral salt used for skin conditioning or texture.Mineral salt
50Pentylene Glycol펜틸렌글라이콜Humectant with mild antimicrobial action, used to cut down on classic preservatives.Humectant
51Triacetin트라이아세틴Solvent or carrier.Solvent
52Lecithin레시틴Natural emulsifier from soy or sunflower.Emulsifier
53Ppg-5-Ceteth-20피피지-5-세테스-20Emulsifier or solubiliser that keeps oil and water mixed.Emulsifier
54Jojoba Wax PEG-120 Esters호호바왁스피이지-120에스터Emulsifier or solubiliser that keeps oil and water mixed.Emulsifier
55Polysorbate 20폴리솔베이트20Emulsifier that keeps oil and water mixed.Emulsifier
56Polyquaternium-51폴리쿼터늄-51Skin-conditioning ingredient.Skin conditioning
57Hydroxypropyl Cyclodextrin하이드록시프로필사이클로덱스트린Thickener, film-former or powder that sets the texture and finish.Thickener / texture
58Alcohol Denat.변성알코올Denatured alcohol: quick-drying, light feel. High up the list it can dry out sensitive skin.Solvent
59Fragrance향료A blend of scent ingredients listed as one word. Brands do not have to name what is inside.Fragrance
60Limonene리모넨Fragrance component the EU requires brands to name on the label because it can trigger allergies in some people.Fragrance allergen
61Linalool리날룰Fragrance component the EU requires brands to name on the label because it can trigger allergies in some people.Fragrance allergen
62Hydroxycitronellal하이드록시시트로넬알Fragrance component the EU requires brands to name on the label because it can trigger allergies in some people.Fragrance allergen
63Citronellol시트로넬올Fragrance component the EU requires brands to name on the label because it can trigger allergies in some people.Fragrance allergen
64Geraniol제라니올Fragrance component the EU requires brands to name on the label because it can trigger allergies in some people.Fragrance allergen
65BHT비에이치티Antioxidant that keeps oils in the formula from going rancid.Antioxidant
66Disodium EDTA다이소듐이디티에이Binds metal ions so the formula stays stable.Chelating agent
67Potassium Sorbate포타슘솔베이트Mild preservative, effective at lower pH.Preservative
1% line — probably 1% or less below this point
68Chlorphenesin클로페네신Preservative capped at 0.3% in the EU.Preservative
69Sorbic Acid소르빅애씨드Preservative; the EU allows up to 0.6% (as acid).Preservative
70Phenoxyethanol페녹시에탄올The most common preservative. The EU caps it at 1%, so everything listed after it is at 1% or less.Preservative

Based on the ingredient list the brand publishes; formulas can change and differ by country. The order shows relative amounts, not exact percentages. General information, not medical advice.

Ingredient list as published on the brand’s official website. Formulas change and can differ by country, so check the list on your pack too. General information, not medical advice.