Paula's Choice Hyaluronic Acid Booster Versus Mac Cosmetics Hyper Real Serumizer Skin Balancing Hydration Serum

Paula's Choice Hyaluronic Acid Booster Versus Mac Cosmetics Hyper Real Serumizer Skin Balancing Hydration Serum

This hydrating treatment is formulated around Sodium Hyaluronate and Hyaluronic Acid to hydrate skin and strengthen the skin barrier.

This hydrating serum is formulated around Niacinamide and Ceramide Ng to hydrate skin and refine skin texture.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Sodium Hyaluronate

Hyaluronic Acid

Ceramide NP

Ceramide AP

Ceramide EOP

Phytosphingosine

Yeast Extract

Adenosine

Cholesterol

Panthenol

Silanetriol

Butylene Glycol

Sodium Lauroyl Lactylate

Carbomer

Xanthan Gum

Citric Acid

Sodium Hydroxide

Polysorbate 20

Ethylhexylglycerin

Phenoxyethanol

Water, Glycerin, Sodium Hyaluronate, Hyaluronic Acid, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Yeast Extract, Adenosine, Cholesterol, Panthenol, Silanetriol, Butylene Glycol, Sodium Lauroyl Lactylate, Carbomer, Xanthan Gum, Citric Acid, Sodium Hydroxide, Polysorbate 20, Ethylhexylglycerin, Phenoxyethanol

Dimethicone

Niacinamide

Trisiloxane

Octyldodecyl Stearoyl Stearate

Trehalose

Paeonia Albiflora Flower Extract

Ceramide Ng

Linoleic Acid

Salicylic Acid

Lactic Acid

Glycolic Acid

Algae Extract

Saccharomyces Lysate Extract

Betula Alba Bark Extract

Camellia Sinensis Leaf Extract

Thermus Thermophillus Ferment

Laminaria Saccharina Extract

Silybum Marianum Extract

Caffeine

Bis-PEG-18 Methyl Ether Dimethyl Silane

Acetyl Glucosamine

Sorbitol

Sodium Magnesium Silicate

PEG-8

Sucrose

T-Butyl Alcohol

Polyacrylate Crosspolymer-6

Oleth-10

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Hydrogenated Lecithin

Jojoba Wax PEG-120 Esters

Tromethamine

Di-C12-18 Alkyl Dimonium Chloride

Silica

Parfum

Benzyl Salicylate

Limonene

Linalool

CI 77891

Synthetic Fluorphlogopite

Tin Oxide

Mica

Caprylyl Glycol

BHT

Disodium EDTA

Hexylene Glycol

Tocopheryl Acetate

Magnesium Ascorbyl Phosphate

Sodium Benzoate

Water, Dimethicone, Butylene Glycol, Glycerin, Niacinamide, Trisiloxane, Octyldodecyl Stearoyl Stearate, Trehalose, Paeonia Albiflora Flower Extract, Cholesterol, Ceramide Ng, Linoleic Acid, Salicylic Acid, Lactic Acid, Glycolic Acid, Citric Acid, Algae Extract, Saccharomyces Lysate Extract, Betula Alba Bark Extract, Camellia Sinensis Leaf Extract, Thermus Thermophillus Ferment, Laminaria Saccharina Extract, Silybum Marianum Extract, Caffeine, Bis-PEG-18 Methyl Ether Dimethyl Silane, Acetyl Glucosamine, Sodium Hyaluronate, Sorbitol, Sodium Magnesium Silicate, PEG-8, Sucrose, T-Butyl Alcohol, Polyacrylate Crosspolymer-6, Oleth-10, Carbomer, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Xanthan Gum, Hydrogenated Lecithin, Jojoba Wax PEG-120 Esters, Sodium Hydroxide, Tromethamine, Di-C12-18 Alkyl Dimonium Chloride, Silica, Parfum, Benzyl Salicylate, Limonene, Linalool, CI 77891, Synthetic Fluorphlogopite, Tin Oxide, Mica, Caprylyl Glycol, BHT, Disodium EDTA, Hexylene Glycol, Tocopheryl Acetate, Magnesium Ascorbyl Phosphate, Phenoxyethanol, Sodium Benzoate

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.

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

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.

Cholesterol is a lipid that is naturally found in human skin and is one of the three key components of your skin barrier. In skincare, it is an emollient and barrier-repairing ingredient.

It works by fitting directly into the lipid layers of skin to help restore structure and reduce transepidermal water loss (TEWL).

This is a great ingredient for dry, compromised, or aging skin; our skin starts to produce less cholesterol with age.

Research shows cholesterol works best in combination with ceramides and fatty acids, the other two major components in your skin barrier.

Cholesterol is also a well-establish penetration enhancer and can help other actives absorb more effectively.

Cosmetic-grade cholesterol is usually derived from lanolin but plant and synthetic options also exist. We recommend reaching out to the brand if you have questions about their source of cholesterol.

Citric 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.

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.

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.

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.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Similar Comparisons