La Roche-Posay Lipikar Urea 10% Roughness Smoothing Lotion Versus The Ordinary Glycolic Acid 7% Toning Solution
This smoothing toner is formulated around Glycolic Acid to refine skin texture and brighten dull-looking skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningUrea
Buffering
Glycerin
Humectant
Butyrospermum Parkii Butter
Skin Conditioning
Brassica Campestris Seed Oil
Skin Conditioning
Dicaprylyl Carbonate
EmollientIsopropyl Palmitate
Emollient
Pentylene Glycol
Skin Conditioning
Glycine
Buffering
Cetearyl Alcohol
Emollient
Silica
Abrasive
Stearic Acid
Cleansing
Allantoin
Skin Conditioning
Sorbitan Oleate
Emulsifying
Sorbitan Tristearate
EmulsifyingGlyceryl Stearate
Emollient
PEG-100 Stearate
Surfactant
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Isohexadecane
EmollientSodium Hydroxide
BufferingSodium Lactate
Buffering
Myristic Acid
Cleansing
Palmitic Acid
Emollient
Mannose
HumectantHydroxyacetophenone
Antioxidant
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingCaprylyl Glycol
Emollient
Citric Acid
Buffering
Trisodium Ethylenediamine Disuccinate
Xanthan Gum
EmulsifyingPolysorbate 80
Emulsifying
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingTocopherol
Antioxidant
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Chlorhexidine Digluconate
Antimicrobial
Water, Urea, Glycerin, Butyrospermum Parkii Butter, Brassica Campestris Seed Oil, Dicaprylyl Carbonate, Isopropyl Palmitate, Pentylene Glycol, Glycine, Cetearyl Alcohol, Silica, Stearic Acid, Allantoin, Sorbitan Oleate, Sorbitan Tristearate, Glyceryl Stearate, PEG-100 Stearate, PEG-20 Methyl Glucose Sesquistearate, Isohexadecane, Sodium Hydroxide, Sodium Lactate, Myristic Acid, Palmitic Acid, Mannose, Hydroxyacetophenone, Hydroxyethylpiperazine Ethane Sulfonic Acid, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Polysorbate 80, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Chlorhexidine Digluconate
Water
Skin ConditioningGlycolic Acid
Buffering
Rosa Damascena Flower Water
Masking
Centaurea Cyanus Flower Water
Skin Conditioning
Aloe Barbadensis Leaf Water
MaskingPropanediol
Solvent
Glycerin
Humectant
Triethanolamine
BufferingAminomethyl Propanol
BufferingPanax Ginseng Root Extract
Emollient
Tasmannia Lanceolata Fruit/Leaf Extract
Antioxidant
Aspartic Acid
Masking
Alanine
Masking
Glycine
Buffering
Serine
Masking
Valine
MaskingIsoleucine
Skin ConditioningProline
Skin Conditioning
Threonine
Histidine
Humectant
Phenylalanine
Masking
Glutamic Acid
Humectant
Arginine
Masking
PCA
Humectant
Sodium PCA
Humectant
Sodium Lactate
Buffering
Fructose
Humectant
Glucose
Humectant
Sucrose
Humectant
Urea
Buffering
Hexyl Nicotinate
EmollientDextrin
AbsorbentCitric Acid
Buffering
Polysorbate 20
Emulsifying
Gellan Gum
Trisodium Ethylenediamine Disuccinate
Sodium Chloride
MaskingHexylene Glycol
EmulsifyingPotassium Sorbate
Preservative
Sodium Benzoate
Masking
1,2-Hexanediol
Skin Conditioning
Caprylyl Glycol
Emollient
Water, Glycolic Acid, Rosa Damascena Flower Water, Centaurea Cyanus Flower Water, Aloe Barbadensis Leaf Water, Propanediol, Glycerin, Triethanolamine, Aminomethyl Propanol, Panax Ginseng Root Extract, Tasmannia Lanceolata Fruit/Leaf Extract, Aspartic Acid, Alanine, Glycine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Glutamic Acid, Arginine, PCA, Sodium PCA, Sodium Lactate, Fructose, Glucose, Sucrose, Urea, Hexyl Nicotinate, Dextrin, Citric Acid, Polysorbate 20, Gellan Gum, Trisodium Ethylenediamine Disuccinate, Sodium Chloride, Hexylene Glycol, Potassium Sorbate, Sodium Benzoate, 1,2-Hexanediol, Caprylyl Glycol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolCitric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.
However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.
Learn more about Citric AcidGlycerin (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.
Learn more about GlycerinGlycine is the smallest amino acid and a key building block of collagen. It's part if your skin's Natural Moisturizing Factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.
Sodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and sometimes used to adjust the pH of a product.
This ingredient is part of our skin's NMF, or natural moisturizing factor. Our NMF is essential for the hydration of our top skin layers and plasticity of skin. NMF also influences our skin's natural acid mantle and pH, which protects our skin from harmful bacteria.
High percentages of Sodium Lactate can have an exfoliating effect.
Fun fact: Sodium Lactate is produced from fermented sugar.
Learn more about Sodium LactateTrisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
Urea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.
As a humectant, urea helps draw moisture from the air and from deep within the skin. This helps hydrate your skin. Studies show urea is an effective moisturizer for dry skin conditions. 40% urea is typical in medications for treating eczema and other skin conditions.
Urea has the strongest exfoliation effect in concentrations higher than 10%. It is a keratolytic agent, meaning it breaks down the keratin protein in the top layer of skin. This helps remove dead skin cells and flaking skin.
In medicine, urea has been shown to help increase the potency of other ingredients, such as fungal treatments.
Humans and animals use urea to metabolize nitrogen-containing compounds. Urea is highly soluble in water. Once dissolved, it is neither acidic nor alkaline.
Urea is actually one of the more well-studied and well-supported ingredients out there if you have eczema.
Clinical trials have shown that urea creams in the 5 - 10% range can:
Higher concentrations (20 -30%) can also help with thickened, scaly patches but is also more likely to sting on active flares.
Skip urea if you have rosacea. The AAD (American Academy of Dermatology) lists it alongside alcohol, menthol, and fragrance as a potential irritant for rosacea-prone skin. Urea's keratolytic and penetration-enhancing properties can trigger stinging, burning, and redness.
As always, your skin is unique, so definitely check in with your dermatologist.
Learn more about UreaWater. 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!
Learn more about Water
