SkinCeuticals Hyaluronic Acid Intensifier (H.A.) Versus The Ordinary Hyaluronic Acid 2% + B5 Serum
Updated on March 30, 2025
Overview
What they are
These products are both reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any common allergens, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
SkinCeuticals Hyaluronic Acid Intensifier (H.A.) 35 ingredients
The Ordinary Hyaluronic Acid 2% + B5 Serum 23 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
SkinCeuticals Hyaluronic Acid Intensifier (H.A.) 35 ingredients
The Ordinary Hyaluronic Acid 2% + B5 Serum 23 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Water
Skin ConditioningCyclohexasiloxane
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Hydroxypropyl Tetrahydropyrantriol
Skin ConditioningPropylene Glycol
Humectant
Dipotassium Glycyrrhizate
Humectant
Polysilicone-11
Polymethylsilsesquioxane
Sodium Hyaluronate
Humectant
Dimethicone
Emollient
Tocopherol
Antioxidant
Phenoxyethanol
Preservative
Capryloyl Salicylic Acid
Exfoliating
Octyldodecanol
EmollientBis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
Emollient
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingCaprylyl Glycol
EmollientXanthan Gum
EmulsifyingDextrin
AbsorbentOryza Sativa Extract
Absorbent
Disodium EDTA
Caprylic/Capric Triglyceride
MaskingSodium Hydroxide
BufferingAdenosine
Skin Conditioning
Citrus Nobilis Peel Oil
Masking
Limonene
Perfuming
T-Butyl Alcohol
Perfuming
Cellulose Acetate Butyrate
Polyphosphorylcholine Glycol Acrylate
Polyvinyl Alcohol
Sodium Chloride
Masking
Butylene Glycol
Humectant
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Water, Cyclohexasiloxane, Glycerin, Alcohol Denat., Hydroxypropyl Tetrahydropyrantriol, Propylene Glycol, Dipotassium Glycyrrhizate, Polysilicone-11, Polymethylsilsesquioxane, Sodium Hyaluronate, Dimethicone, Tocopherol, Phenoxyethanol, Capryloyl Salicylic Acid, Octyldodecanol, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, PEG-20 Methyl Glucose Sesquistearate, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Xanthan Gum, Dextrin, Oryza Sativa Extract, Disodium EDTA, Caprylic/Capric Triglyceride, Sodium Hydroxide, Adenosine, Citrus Nobilis Peel Oil, Limonene, T-Butyl Alcohol, Cellulose Acetate Butyrate, Polyphosphorylcholine Glycol Acrylate, Polyvinyl Alcohol, Sodium Chloride, Butylene Glycol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Water
Skin ConditioningSodium Hyaluronate
Humectant
Propanediol
SolventPentylene Glycol
Skin ConditioningHydrolyzed Hyaluronic Acid
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Phospholipids
Skin ConditioningSphingolipids
EmollientPanthenol
Skin Conditioning
Ahnfeltiopsis Concinna Extract
Skin ConditioningGlycerin
Humectant
Polysorbate 20
Emulsifying
Citric Acid
Buffering
Sodium Citrate
BufferingP-Anisic Acid
MaskingTocopherol
Antioxidant
Trisodium Ethylenediamine Disuccinate
Caprylyl Glycol
EmollientEthoxydiglycol
HumectantEthylhexylglycerin
Skin ConditioningHexylene Glycol
EmulsifyingPhenoxyethanol
Preservative
Chlorphenesin
Antimicrobial
Water, Sodium Hyaluronate, Propanediol, Pentylene Glycol, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Phospholipids, Sphingolipids, Panthenol, Ahnfeltiopsis Concinna Extract, Glycerin, Polysorbate 20, Citric Acid, Sodium Citrate, P-Anisic Acid, Tocopherol, Trisodium Ethylenediamine Disuccinate, Caprylyl Glycol, Ethoxydiglycol, Ethylhexylglycerin, Hexylene Glycol, Phenoxyethanol, Chlorphenesin
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinSodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
SkinCeuticals Hyaluronic Acid Intensifier (H.A.) 35 ingredients
The Ordinary Hyaluronic Acid 2% + B5 Serum 23 ingredients
Reviews
Here's what our community thinks
SkinCeuticals Hyaluronic Acid Intensifier (H.A.) 35 ingredients
Love!!!! but pricey!!!
The Ordinary Hyaluronic Acid 2% + B5 Serum 23 ingredients
I didn’t do anything for me. I didn’t feel particularly hydrated, B5 also didn’t help with anything 🤷🏻♀️ I rather use other products where I see results over night.
I tried to dilute it with Niacinamide serum 10%, it started to pill. I was curious if it’s just my failed attempt or it’s generally a problem and yes… if I apply those serums even one after the other, it starts to pill 🙈 that’s a Show more
a really moisturising hydrating serum!! dries tacky but i can get past that
