Neutrogena Hydro Boost Hydrating Serum Versus Bubble Water Slide Hydration Boosting Serum Hyaluronic Acid + Peptides
This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Dimethicone
Emollient
Butylene Glycol
Humectant
Neopentyl Glycol Diheptanoate
EmollientAluminum Starch Octenylsuccinate
Absorbent
Isododecane
EmollientDimethiconol
Emollient
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Ethylhexylglycerin
Skin ConditioningBenzyl Alcohol
Perfuming
Sodium Lactate
Buffering
Cetearyl Olivate
Bisabolol
Antioxidant
Chlorphenesin
Antimicrobial
Sorbitan Olivate
Emulsifying
Sodium PCA
Humectant
Parfum
Masking
Sodium Hyaluronate
Humectant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingSorbitol
Humectant
Chondrus Crispus Extract
Skin Conditioning
Sodium Hydroxide
BufferingProline
Skin Conditioning
Portulaca Oleracea Extract
Skin Conditioning
Propylene Glycol
Humectant
Citric Acid
Buffering
Magnesium Aspartate
Skin ConditioningZinc Gluconate
Skin Conditioning
Copper Gluconate
Skin Conditioning
Water, Glycerin, Dimethicone, Butylene Glycol, Neopentyl Glycol Diheptanoate, Aluminum Starch Octenylsuccinate, Isododecane, Dimethiconol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Ethylhexylglycerin, Benzyl Alcohol, Sodium Lactate, Cetearyl Olivate, Bisabolol, Chlorphenesin, Sorbitan Olivate, Sodium PCA, Parfum, Sodium Hyaluronate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sorbitol, Chondrus Crispus Extract, Sodium Hydroxide, Proline, Portulaca Oleracea Extract, Propylene Glycol, Citric Acid, Magnesium Aspartate, Zinc Gluconate, Copper Gluconate
Water
Skin ConditioningPropanediol
Solvent
Glycerin
Humectant
Squalane
Emollient
Niacinamide
Smoothing
Saccharide Isomerate
Humectant
Capryloyl Glycerin/Sebacic Acid Copolymer
Skin ConditioningDiheptyl Succinate
EmollientTremella Fuciformis Extract
Humectant
Sodium Hyaluronate
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Aloe Barbadensis Leaf Juice
Skin Conditioning
Glyceryl Acrylate/Acrylic Acid Copolymer
HumectantOpuntia Ficus-Indica Seed Oil
Emollient
Tocopheryl Acetate
Antioxidant
Lauryl Glucoside
CleansingXanthan Gum
EmulsifyingSodium Lactate
Buffering
Phytic Acid
Chelating
Cetearyl Olivate
Sorbitan Olivate
Emulsifying
Cetyl Alcohol
Emollient
Sucrose
Humectant
Anastatica Hierochuntica Extract
AstringentAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingEuphorbia Cerifera Cera
Astringent
Butyrospermum Parkii Butter
Skin Conditioning
Beta-Sitosterol
Emulsion Stabilising
Glyceryl Behenate
Emollient
Polyglyceryl-4 Isostearate
Emulsifying
Oleic Acid
Emollient
Ceramide NP
Skin Conditioning
Ceramide Ng
Skin Conditioning
Lecithin
Emollient
Tocopherol
Antioxidant
Potassium Hydroxide
BufferingGluconolactone
Chelating
Phenoxyethanol
Preservative
Sodium Benzoate
Masking
Lactic Acid
Buffering
Citric Acid
Buffering
Sodium Citrate
BufferingEthylhexylglycerin
Skin ConditioningWater, Propanediol, Glycerin, Squalane, Niacinamide, Saccharide Isomerate, Capryloyl Glycerin/Sebacic Acid Copolymer, Diheptyl Succinate, Tremella Fuciformis Extract, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Aloe Barbadensis Leaf Juice, Glyceryl Acrylate/Acrylic Acid Copolymer, Opuntia Ficus-Indica Seed Oil, Tocopheryl Acetate, Lauryl Glucoside, Xanthan Gum, Sodium Lactate, Phytic Acid, Cetearyl Olivate, Sorbitan Olivate, Cetyl Alcohol, Sucrose, Anastatica Hierochuntica Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Euphorbia Cerifera Cera, Butyrospermum Parkii Butter, Beta-Sitosterol, Glyceryl Behenate, Polyglyceryl-4 Isostearate, Oleic Acid, Ceramide NP, Ceramide Ng, Lecithin, Tocopherol, Potassium Hydroxide, Gluconolactone, Phenoxyethanol, Sodium Benzoate, Lactic Acid, Citric Acid, Sodium Citrate, Ethylhexylglycerin
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.
A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.
Learn more about Acrylates/C10-30 Alkyl Acrylate CrosspolymerCetearyl Olivate is a plant-derived emulsifier and texture enhancer. It helps keep the oil and water phases from separating so your formulas stay stable.
You'll likely see it combined with Sorbitan Olivate (together sold as the trade name Olivem 1000). This combination generates a liquid crystal structure that closely resemble the lipid organization of the stratum corneum.
These "skin-like" liquid crystals improve skin barrier integrity and promote the delivery of actives into the skin.
This ingredient is well-tolerated and has no significant sensitization data.
Because it is derived from the fatty acids in olive oil, this ingredient may not be fungal acne safe.
Learn more about Cetearyl OlivateCitric 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 AcidEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinGlycerin (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 GlycerinSodium 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.
Learn more about Sodium HyaluronateSodium 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 LactateSorbitan Olivate is created from the fatty acids in olive oil and sorbitol.
This ingredient is an oil in water emulsifier. It helps stabilize a product by preventing oils and waters from separating. Sorbitan Olivate also helps hydrate the skin.
This ingredient is also known as part of Olivem 1000, with Cetearyl Olivate being the other part.
According to a manufacturer, this ingredient helps preserve the natural microbiome of skin. Having a healthy microbiome helps keep our skin healthy and protects against harmful bacteria.
Please note, having a healthy microbiome is different from fungal acne; a healthy microbiome includes small amounts of yeast that normally live on your skin without causing problems.
Fungal acne happens when one type of yeast (Malassezia) grows out of control. This is usually because it's feeding on certain oils or fatty acids. Due to the olive oil base, this ingredient may not be fungal acne safe.
Learn more about Sorbitan OlivateWater. 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
