Q + A Hyaluronic Acid Face Mist Versus Neutrogena Hydro Boost Vitamin E & Hyaluronic Acid Serum

Q + A Hyaluronic Acid Face Mist Versus Neutrogena Hydro Boost Vitamin E & Hyaluronic Acid Serum

This hydrating toner is formulated around Sodium Hyaluronate and Panthenol to hydrate skin and calm redness.

This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Propylene Glycol

Betaine

Glycerin

Sodium Hyaluronate

Panthenol

Aloe Barbadensis Leaf Juice Powder

Inulin

Fructose

Sodium Gluconate

Caprylyl Glycol

Phenoxyethanol

Citric Acid

Water, Propylene Glycol, Betaine, Glycerin, Sodium Hyaluronate, Panthenol, Aloe Barbadensis Leaf Juice Powder, Inulin, Fructose, Sodium Gluconate, Caprylyl Glycol, Phenoxyethanol, Citric Acid

Propanediol

Pentylene Glycol

Niacinamide

Butylene Glycol

PEG-60 Hydrogenated Castor Oil

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Ethylhexylglycerin

Chondrus Crispus Powder

Ceramide AP

1,2-Hexanediol

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Tromethamine

Synthetic Fluorphlogopite

Agar

Gellan Gum

Parfum

Disodium EDTA

Tocopheryl Acetate

Algin

Sucrose

Chondrus Crispus Extract

Arginine

PCA

Serine

Alanine

Threonine

Mourera Fluviatilis Extract

Titanium Dioxide

Mica

Water, Propanediol, Glycerin, Pentylene Glycol, Niacinamide, Phenoxyethanol, Butylene Glycol, PEG-60 Hydrogenated Castor Oil, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Caprylyl Glycol, Ethylhexylglycerin, Chondrus Crispus Powder, Ceramide AP, 1,2-Hexanediol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Panthenol, Sodium Hyaluronate, Synthetic Fluorphlogopite, Agar, Gellan Gum, Parfum, Disodium EDTA, Tocopheryl Acetate, Algin, Sucrose, Chondrus Crispus Extract, Arginine, PCA, Serine, Alanine, Citric Acid, Threonine, Mourera Fluviatilis Extract, Titanium Dioxide, Mica

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Alternatives

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).

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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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.

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!

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