The Treatment Lotion
The Treatment Lotion
Product Description
La Mer's iconic serum-strength watery lotion delivers a rush of liquid hydration as the essential first step after cleansing. Powered by the legendary Miracle Brothβ’ and Active Liquid Hydrogel technology, it cushions on contact, penetrates rapidly, and primes the skin to absorb the full benefits of every treatment that follows, leaving a visibly plumped, radiant, youthful-looking complexion.
β¨ Texture & Feel
Active Liquid Hydrogel
Cushions on contact and penetrates rapidly to deliver sustained all-day moisture.
Miracle Brothβ’
Sea kelp ferment supports skin's oxygen capacity and activates visible renewal.
The Revival Ferment
Helps skin resist visible irritation and redness for a calmer, healthier complexion.
Treatment Primer
Optimizes skin to absorb the full benefits of serums and moisturizers that follow.
π‘οΈ Safety & Compatibility
Formulated without parabens, phthalates, and SLS/SLES sulfates.
Clinically tested to be non-irritating under dermatological supervision.
Includes Parfum, Limonene, Linalool, Citronellol, Geraniol and Eucalyptus Oil β potential irritants for very sensitive skin.
Alcohol Denat. is present in the formula, which may be drying for some skin types with repeated use.
Contains yeast ferments, sesame seed oil, and polysorbate 20 β may trigger malassezia flare-ups.
No retinoids or salicylic acid, but contains essential oils and caffeine. Consult your OB-GYN before use.
Compatible with retinol, vitamin C, AHAs and BHAs when applied in correct order.
La Mer is sold in mainland China, where animal testing may be required by law.
π¬ Ingredient Breakdown
πΏ Algae Extract (Miracle Brothβ’) 2nd Highest Proven
La Mer's signature bio-fermented sea kelp extract, undergoing 3β4 months of fermentation with exposure to light and sound waves. Acts as a humectant, emollient, and skin conditioner to soothe and hydrate.
- Source: Brown algae species, primarily Fucus vesiculosus, fermented to unlock nutrients.
- Function: Delivers marine minerals, amino acids, and vitamins to support barrier repair.
- Clinical: La Mer reports 93% of users experienced reduced sensitivity to redness after 150 minutes.
π§ Glycerin 3rd Highest Proven
The gold-standard humectant that attracts and binds water to skin, providing deep, lasting hydration without heaviness.
- Function: Pulls moisture from the environment and deeper skin layers to the surface.
- Benefit: Strengthens the skin barrier and reduces trans-epidermal water loss.
- Safety: Non-comedogenic, suitable for all skin types including sensitive.
𧬠Sodium Hyaluronate Mid-list Proven
The salt form of hyaluronic acid with smaller molecular weight for better penetration. Holds up to 1,000 times its weight in water.
- Function: Deep hydration, plumping effect, and smoothing of fine lines caused by dehydration.
- Benefit: Creates the signature "plumped" finish La Mer is known for.
π§« Lactobacillus Ferment Mid-list Promising
A probiotic-derived ferment that supports skin microbiome balance and has gentle anti-microbial and anti-inflammatory properties.
- EstΓ©e Lauder Research (2012): Showed anti-inflammatory properties useful for redness at 1% concentration.
- Function: Soothes sensitive skin and supports microflora balance.
π§ͺ Acetyl Hexapeptide-8 (Argireline) Low % Promising
A peptide known as "Botox in a bottle" that temporarily relaxes facial muscle tension to soften the appearance of expression lines.
- Function: Mimics a protein fragment involved in neurotransmitter release to relax muscle contractions.
- Benefit: May reduce the depth of fine lines around eyes and forehead with consistent use.
π Marine Extracts Complex Multiple Promising
A blend of four seaweed and plankton extracts: Laminaria Digitata, Laminaria Saccharina, Plankton, and Palmaria Palmata β rich in minerals, antioxidants, and polysaccharides.
- Function: Anti-oxidant protection, mineral nourishment, and hydration support.
- Benefit: Helps visibly brighten and condition the skin.
β‘ Caffeine & Niacin (B3) Low % Proven
Caffeine provides antioxidant benefits and tightens the look of skin, while Niacin (a form of niacinamide) supports barrier function and evens skin tone.
- Caffeine: Reduces puffiness and stimulates microcirculation.
- Niacin: Strengthens skin barrier, reduces redness, evens pigmentation.
π― Dipotassium Glycyrrhizate Low % Proven
Derived from licorice root β a potent anti-inflammatory and skin-soothing agent that calms visible redness and irritation.
- Function: Inhibits inflammatory pathways in irritated skin.
- Benefit: Ideal for reactive or compromised skin barriers.
πΎ Trehalose & Sodium PCA Low % Proven
Natural moisturizing factors (NMFs) that protect skin cells from dehydration stress and maintain long-term moisture retention.
- Trehalose: A plant sugar that preserves cellular membranes during dry conditions.
- Sodium PCA: Naturally present in skin; binds water and improves elasticity.
68 ingredients
Water\Aqua\Eau, Algae Extract, Glycerin, Methyl Gluceth-20, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sucrose, Yeast Extract\Faex\Extrait De Levure, Sesamum Indicum (Sesame) Seed Oil, Medicago Sativa (Alfalfa) Seed Powder, Prunus Amygdalus Dulcis (Sweet Almond) Seed Meal, Helianthus Annuus (Sunflower) Seedcake, Eucalyptus Globulus (Eucalyptus) Leaf Oil, Sodium Gluconate, Copper Gluconate, Calcium Gluconate, Magnesium Gluconate, Zinc Gluconate, Tocopheryl Succinate, Niacin, Sesamum Indicum (Sesame) Seed Powder, Citrus Aurantifolia (Lime) Peel Extract, Laminaria Digitata Extract, Laminaria Saccharina Extract, Plankton Extract, Palmaria Palmata Extract, Sodium Hyaluronate, Butylene Glycol, Caffeine, Dipotassium Glycyrrhizate, Acetyl Hexapeptide-8, Glycereth-26, Alcaligenes Polysaccharides, Trehalose, Lactobacillus Ferment, Sea Salt\Maris Sal\Sel Marin, Tourmaline, Urea, Sodium PCA, Glycine Soja (Soybean) Protein, Glycosaminoglycans, Glycine Soja (Soybean) Seed Extract, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Caprylyl Glycol, PEG-8, Magnesium Chloride, Calcium Chloride, Sodium Sulfate, Potassium Phosphate, Potassium Nitrate, Pentylene Glycol, Triacetin, Lecithin, PPG-5-Ceteth-20, Jojoba Wax PEG-120 Esters, Polysorbate 20, Polyquaternium-51, Hydroxypropyl Cyclodextrin, Alcohol Denat., Parfum, Limonene, Linalool, Hydroxycitronellal, Citronellol, Geraniol, BHT, Disodium EDTA, Potassium Sorbate, Chlorphenesin, Sorbic Acid, Phenoxyethanol
π Where It Fits in Your Routine
Apply as the essential first step after cleansing β before serums and moisturizers β both morning and evening.
π How to Use
Cleanse
Start with freshly cleansed skin in the morning and evening.
Dispense
Sprinkle a small amount onto fingertips or saturate a cotton pad.
Press In
Press gently into skin β do not rub. Let the lotion fully absorb before layering.
Follow Up
Apply your La Mer serum, eye treatment, and moisturizer to lock in the benefits.
Frequency
Use twice daily, morning and night, for best results.
π€ Who Is It For?
β Perfect for you if:
- You have dry, dehydrated, or mature skin craving intensive hydration
- You want a luxurious first-step essence to prep skin for serums
- You're experiencing dullness, loss of firmness, or uneven texture
- You enjoy multi-step skincare and appreciate layering products
- You're willing to invest in a premium, long-lasting bottle (5 fl oz)
- You already love and use other La Mer products
β Consider alternatives if:
- You have fungal acne (malassezia-prone skin)
- You're extremely fragrance-sensitive or reactive to essential oils
- You're on a tight budget or prefer minimalist formulations
- You strictly avoid denatured alcohol in skincare
- You only buy certified cruelty-free brands
- You want clinically proven actives at high concentrations (retinol, vitamin C)
π― Skin Type Compatibility
Ideal choice β deep hydration plumps dehydrated skin and preps it for richer creams to follow.
Lightweight yet nourishing β delivers balanced moisture and radiance for healthy skin.
Peptides, algae ferments, and antioxidants target dullness, fine lines, and loss of firmness.
Works well but consider the Balancing Treatment Lotion version for oilier T-zones.
Hydrating but La Mer's Balancing version is better for shine control and pore refinement.
Contains fragrance, essential oils, and alcohol denat. β patch test first on reactive skin.
Low comedogenic rating but not fungal-acne safe due to yeast ferments and fatty acids.
Not recommended β contains Yeast Extract, Sesame Oil, and Polysorbate 20 which can feed malassezia.
π Results Timeline
Instant Hydration Surge
Skin feels cushioned, plumped, and drenched in moisture within seconds of application. La Mer reports 100% of panelists experienced an immediate surge of healing hydration after one use.
100% noticedReduced Redness & Sensitivity
In clinical testing, 93% of panelists showed reduced sensitivity to redness and irritation 150 minutes after application.
93% noticedVisible Glow & Softer Texture
Skin appears smoother, more radiant, and better prepped for subsequent skincare. Makeup glides on more evenly.
85% noticedPlumper, More Youthful Look
In La Mer consumer testing on 109 women, 93% reported their skin felt plumped with hydration after 4 weeks of use.
93% noticedFirmer, More Even-Toned Skin
With consistent use alongside other La Mer products, fine dehydration lines soften and overall skin tone looks more uniform.
78% noticedβ Ratings by Platform
βοΈ Pros & Cons
β Praised
- Instantly plumps and hydrates dehydrated skin
- Luxurious watery-gel texture that absorbs instantly
- Calms visible redness and sensitivity
- Enhances absorption of serums and moisturizers that follow
- Elegant, spa-like marine-floral scent
- Suitable for most skin types including normal, dry, and mature
- Allure Best of Beauty award-winning formula
- Free from parabens, phthalates, and sulfates
β Criticized
- Very high price point ($125 for 150 ml)
- Contains fragrance, essential oils, and denatured alcohol
- Not suitable for fungal-acne prone skin
- Not cruelty-free (sold in mainland China)
- Limited hero actives compared to competitors at similar price
- Many affordable alternatives offer comparable hydration
- Results may be subtle without complementary La Mer products
π° Budget-Friendly Alternatives (Dupes)
Uses Piteraβ’ (Saccharomyces ferment) instead of algae-based Miracle Broth. More watery texture, stronger fermented scent. Better known for brightening and refining texture rather than plumping hydration.
Same parent company (EstΓ©e Lauder Companies), uses Bio-Ferment and algae-derived humectants. Watery essence format with a fresher scent and lower price point than La Mer.
K-beauty favorite with 90%+ fermented yeast extract (Saccharomyces) and niacinamide. Similar first-essence function at less than half the price. Lightweight, fast-absorbing.
La Mer's own version for oily/combination skin. Uses Miracle Broth plus Witch Hazel and Marine Balancing Bio-algae for pore refinement. Same price, different skin type target.
Pure hydration with three molecular weights of HA. No algae, peptides, or luxury feel β but delivers 80% of the core hydrating effect at a fraction of the cost.
Also owned by EstΓ©e Lauder Companies. Contains hyaluronic acid, caffeine, and aloe for 72-hour hydration. Lighter gel texture and more affordable.
π Comparison with Competitors
La Mer The Treatment Lotion
$125.00SK-II Facial Treatment Essence
$99.00EstΓ©e Lauder Micro Essence
$85.00Missha Time Revolution First Treatment Essence
$52.00π¦ Storage & Shelf Life
12 months after opening
Store in a cool, dry place away from direct sunlight and high temperatures.
Glass bottle with screw-top cap and sprinkle dispenser opening
Full 150ml size exceeds 100ml carry-on limits β opt for the 15ml or 30ml mini size when traveling.
β Frequently Asked Questions
The formula does not contain retinoids, salicylic acid, hydroquinone, or chemical sunscreens typically avoided during pregnancy. However, it does contain essential oils (Eucalyptus Oil), fragrance components (Limonene, Linalool, Geraniol, Citronellol), and caffeine β ingredients some pregnant or breastfeeding individuals choose to avoid. Always consult your OB-GYN or dermatologist before adding new skincare during pregnancy.
No, it is not considered fungal-acne safe. The formula contains several ingredients that can feed malassezia yeast, including Yeast Extract (Faex), Sesamum Indicum (Sesame) Seed Oil, Lactobacillus Ferment, and Polysorbate 20. If you are prone to malassezia folliculitis, consider a fragrance-free, ferment-free essence instead.
Yes. Apply The Treatment Lotion first as your essence step after cleansing, then follow with your actives (vitamin C in the morning, retinol or AHA/BHA in the evening) after allowing the lotion to absorb. The hydrating formula can actually help buffer potential irritation from stronger actives. Avoid applying Treatment Lotion on the same layer as strong exfoliants to prevent pilling.
It is best suited for normal, dry, dehydrated, and mature skin types seeking luxurious hydration. La Mer markets it as suitable for all skin types, but those with oily or acne-prone skin may prefer The Balancing Treatment Lotion version instead. Very sensitive or fragrance-reactive skin should patch test first due to the essential oils and fragrance in the formula.
Immediate hydration is noticeable within seconds β 100% of panelists reported a surge of hydration after a single use in La Mer's clinical testing. Visible plumping and a more radiant complexion typically appear within 1β2 weeks of twice-daily use. After 4 weeks, 93% of women in La Mer's consumer testing reported skin that felt plumped with hydration. Long-term anti-aging benefits (firmness, fine line reduction) may take 8β12 weeks of consistent use.
Apply it as your essential first step after cleansing, before serums, eye creams, and moisturizers. Sprinkle a small amount onto your fingertips or saturate a cotton pad, then press gently into skin. Use both morning and evening. Allow it to fully absorb before layering additional products to prevent pilling.
It has a low comedogenic rating of 2 out of 5. Most ingredients are lightweight humectants and water-based extracts. However, it does contain some potentially pore-clogging ingredients like Sesamum Indicum (Sesame) Seed Oil and PEG esters β which is why it scores 2 rather than 0. The lightweight watery-gel texture generally absorbs without leaving residue, but if you are extremely acne-prone, consider patch testing.
The Period After Opening (PAO) is 12 months. For best results, use within one year of first opening and store in a cool, dry place away from direct sunlight. With twice-daily use of a generous amount, the 150 ml bottle typically lasts 3β4 months; the 30 ml travel size lasts about 4β6 weeks.
Verdict: La Mer's The Treatment Lotion is a beautifully formulated luxury essence that genuinely delivers instant hydration, a dewy plumped finish, and a soothing sensory experience. The Miracle Brothβ’, marine extracts, peptides, and humectant-rich base make it an excellent first-step essence for normal, dry, and mature skin. However, the steep $125 price tag, the presence of fragrance, essential oils, and denatured alcohol, and the brand's non-cruelty-free status mean it is not for everyone. For those who love La Mer's ritual and appreciate luxury skincare, it's a rewarding staple. For results-focused shoppers on a budget, more affordable essences from Missha, EstΓ©e Lauder, or The Ordinary deliver much of the core benefit at a fraction of the price.
Product Overview
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging Β«promisesΒ» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 1 |
Algae Extract
Skin Conditioning, Emollient, Fragrance, Humectant
|
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Promotes Wound Healing
Hydrating
|
|
| 1 |
Methyl Gluceth-20
Humectant, Moisturising
|
|
|
| 0 |
Bis-PEG-18 Methyl Ether Dimethyl Silane
Emollient, Humectant, Skin Conditioning
|
|

