Educational guide
Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum Versus Lancôme Genifique Advanced Youth Activating Eye Cream
Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum Versus Lancôme Genifique Advanced Youth Activating Eye Cream This barrier-repair serum is formulated around Bifida Ferment Lysate and Sodium Hyaluronate to strengthen the skin barrier
This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.
Estée Lauder Advanced Night Repair Synchronized Multi-Recovery Complex Serum Versus Lancôme Genifique Advanced Youth Activating Eye Cream
This barrier-repair serum is formulated around Bifida Ferment Lysate and Sodium Hyaluronate to strengthen the skin barrier and soften the look of wrinkles.
This anti-aging eye moisturizer is formulated around Bifida Ferment Lysate and Ascorbyl Glucoside to soften the look of wrinkles and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Bifida Ferment Lysate
PEG-8
Propanediol
Bis-PEG-18 Methyl Ether Dimethyl Silane
Methyl Gluceth-20
Glycereth-26
PEG-75
Butylene Glycol
Adansonia Digitata Seed Extract
Tripeptide-32
Sodium Hyaluronate
Faex Extract
Lactobacillus Ferment
Cola Acuminata Seed Extract
Anthemis Nobilis Flower Extract
Hydrolyzed Algin
Pantethine
Caffeine
Lecithin
Sodium Rna
Bisabolol
Squalane
Glycerin
Oleth-3 Phosphate
Caprylyl Glycol
Oleth-3
Oleth-5
Choleth-24
Hydrogenated Lecithin
Jojoba Wax PEG-120 Esters
Ceteth-24
Tocopheryl Acetate
Carbomer
Triethanolamine
Tetrasodium EDTA
BHT
Xanthan Gum
Potassium Sorbate
Disodium EDTA
Phenoxyethanol
CI 14700
CI 19140
Water, Bifida Ferment Lysate, PEG-8, Propanediol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Methyl Gluceth-20, Glycereth-26, PEG-75, Butylene Glycol, Adansonia Digitata Seed Extract, Tripeptide-32, Sodium Hyaluronate, Faex Extract, Lactobacillus Ferment, Cola Acuminata Seed Extract, Anthemis Nobilis Flower Extract, Hydrolyzed Algin, Pantethine, Caffeine, Lecithin, Sodium Rna, Bisabolol, Squalane, Glycerin, Oleth-3 Phosphate, Caprylyl Glycol, Oleth-3, Oleth-5, Choleth-24, Hydrogenated Lecithin, Jojoba Wax PEG-120 Esters, Ceteth-24, Tocopheryl Acetate, Carbomer, Triethanolamine, Tetrasodium EDTA, BHT, Xanthan Gum, Potassium Sorbate, Disodium EDTA, Phenoxyethanol, CI 14700, CI 19140
Cyclohexasiloxane
Alcohol Denat.
Polysilicone-11
Dimethicone
Polymethylsilsesquioxane
Di-C12-13 Alkyl Malate
Ammonium Polyacryloyldimethyl Taurate
CI 77891
Ascorbyl Glucoside
Mica
Hydrogenated Vegetable Oil
Sodium Benzoate
Hydrolyzed Wheat Protein
Sodium
Sodium Dehydroacetate
Sodium Succinate
Adenosine
Yeast Extract
Ptfe
PEG-10 Dimethicone
Arginine
Chlorphenesin
Chlorhexidine Digluconate
Polygonum Fagopyrum Seed Extract
Silica
Salicyloyl Phytosphingosine
Chlorella Vulgaris Extract
Dimethiconol
Limonene
Pentylene Glycol
Synthetic Fluorphlogopite
Linalool
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Biosaccharide Gum-1
Caprylic/Capric Triglyceride
Boron Nitride
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Geraniol
Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
Ceteareth-20
Potassium Cetyl Phosphate
Citronellol
Methionine
Glycine
Parfum
Water, Cyclohexasiloxane, Bifida Ferment Lysate, Glycerin, Propanediol, Alcohol Denat., Polysilicone-11, Dimethicone, Polymethylsilsesquioxane, Di-C12-13 Alkyl Malate, Ammonium Polyacryloyldimethyl Taurate, CI 77891, Ascorbyl Glucoside, Mica, Lactobacillus Ferment, Hydrogenated Vegetable Oil, Sodium Hyaluronate, Sodium Benzoate, Hydrolyzed Wheat Protein, Sodium, Sodium Dehydroacetate, Sodium Succinate, Phenoxyethanol, Adenosine, Yeast Extract, Ptfe, PEG-10 Dimethicone, Arginine, Triethanolamine, Chlorphenesin, Chlorhexidine Digluconate, Polygonum Fagopyrum Seed Extract, Silica, Salicyloyl Phytosphingosine, Chlorella Vulgaris Extract, Dimethiconol, Limonene, Pentylene Glycol, Synthetic Fluorphlogopite, Linalool, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Biosaccharide Gum-1, Caprylic/Capric Triglyceride, Carbomer, Boron Nitride, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Geraniol, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, Disodium EDTA, Ceteareth-20, Potassium Cetyl Phosphate, Citronellol, Methionine, Potassium Sorbate, Glycine, Parfum
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Bifida Ferment Lysate is a postbiotic ingredient made by fermenting Bifidobacterium to extract a nutrient-rich mix of peptides, amino acids, vitamins, organic acids, and polysaccharides.
These components are basically the building blocks that your skin already uses to stay hydrated, repair itself, and maintain its barrier. That's why this ingredient helps your skin hold onto moisture and stay resilient against irritation.
One in-vitro study found that this ingredient tells your skin cells to produce more of the proteins (filaggrin, loricrin, and involucrin) for building a strong and healthy barrier. This study also found this ingredient to be a solid antioxidant that helped neutralize damage against UV and pollution.
A study with people from 2010 found that sensitive, reactive skin using a cream with 10% of this ingredient for a month became noticeably less dry, less reactive, and harder to irritate compared to the group using a plain cream.
In short, this ingredient is a well-tolerated ingredient that can help with barrier repair, antioxidant protection, and calming reactive skin.
This ingredient is generally considered fungal acne (Malassezia) safe; Bifidobacterium is a bacterium, not a yeast or fungus.
The fungal acne concern with fermented ingredients mainly applies to yeast-derived ferments like Saccharomyces and Galactomyces, because those are in the same kingdom as Malassezia and could theoretically contain residual compounds that feed it.
Bifida is a completely different organism, so on its own it doesn't provide a food source for the Malassezia yeast that causes fungal acne.
Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
This ingredient is made when the Lactobacillus bacteria (the same kind that makes yogurt and kimchi) are allowed to ferment a nutrient medium.
As it ferments, it collects lactic acid, peptides, enzymes, and other bioactive metabolites to provide:
A 2023 review noted that probiotic fermentation ingredients like this one can enhance antioxidant capacity, reduce UV-induced oxidative damage, and support barrier function.
One clinical study from the same year showed a Lactobacillus ferment lysate significantly reduced transepidermal water loss and improved skin hydration.
Another review highlighted that topical Lactobacillus-based preparations can improve ceramide levels in the stratum corneum, support barrier integrity, and even help reduce S. aureus colonization in atopic dermatitis.
Why is this so cool?
Basically, your skin's outer layer works as a brick wall; skin cells are bricks and ceramides are the mortar holding it together. Moisture escapes, irritants get in, and your skin gets dry and reactive when ceramide levels drop. On top of that, "bad" skin bacteria S. aureus loves to move in when your barrier is weak to make inflammation and irritation worse.
So Lactobacillus ferment is basically patching the wall and evicting the troublemaker when it boosts ceramide production and help keep S. aureus in check.
On top of all this, it also acts as a mild antimicrobial preservative booster.
Just so you know, most studies focus on specific strains or the lysate form rather than this generic "Lactobacillus Ferment", so results can vary.
Though it's a promising ingredient, it doesn't have decades of robust clinical data behind it just yet.
Lactobacillus Ferment is generally considered safe for fungal-acne prone skin. The key thing to understand is that it comes from bacteria, not yeast or fungus.
Yeast-derived ferments (like galactomyces) have been shown to activate a protein that's linked to Malassezia-related skin issues whereas lactobacillus doesn't have that problem.
Its byproducts also don't contain the types of fatty acids (C11-24 chain lengths) that Malassezia feeds on.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Triethanolamine (TEA) is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.
As an emulsifier, it prevents ingredients from separating and enhances texture by adding volume to a product.
PH adjusters are common in cosmetic products. The pH of a product can affect the effectiveness of other ingredients. A product with a high pH may also irritate the skin.
If you are looking for the tea leaf ingredient, click here.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!