Skin science article
CeraVe Resurfacing Retinol Serum Versus Neutrogena Hydro Boost Hyaluronic Acid Serum
CeraVe Resurfacing Retinol Serum Versus Neutrogena Hydro Boost Hyaluronic Acid Serum This smoothing serum is formulated around Niacinamide and Retinol to refine skin texture and fade the look of dark spots. This hydrating serum is formulated around Panthenol a
CeraVe Resurfacing Retinol Serum Versus Neutrogena Hydro Boost Hyaluronic Acid Serum
This smoothing serum is formulated around Niacinamide and Retinol to refine skin texture and fade the look of dark spots.
This hydrating serum is formulated around Panthenol and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Propanediol
Dimethicone
Cetearyl Ethylhexanoate
Niacinamide
Ammonium Polyacryloyldimethyl Taurate
Dipotassium Glycyrrhizate
Hydrogenated Lecithin
Potassium Phosphate
Ceramide NP
Ceramide AP
Ceramide EOP
Carbomer
Cetearyl Alcohol
Behentrimonium Methosulfate
Dimethiconol
Lecithin
Sodium Citrate
Retinol
Sodium Hyaluronate
Sodium Lauroyl Lactylate
Cholesterol
Phenoxyethanol
Alcohol
Isopropyl Myristate
Caprylyl Glycol
Citric Acid
Trisodium Ethylenediamine Disuccinate
Pentylene Glycol
Phytosphingosine
Xanthan Gum
Polysorbate 20
Ethylhexylglycerin
Water, Propanediol, Dimethicone, Cetearyl Ethylhexanoate, Niacinamide, Ammonium Polyacryloyldimethyl Taurate, Dipotassium Glycyrrhizate, Hydrogenated Lecithin, Potassium Phosphate, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Cetearyl Alcohol, Behentrimonium Methosulfate, Dimethiconol, Lecithin, Sodium Citrate, Retinol, Sodium Hyaluronate, Sodium Lauroyl Lactylate, Cholesterol, Phenoxyethanol, Alcohol, Isopropyl Myristate, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Pentylene Glycol, Phytosphingosine, Xanthan Gum, Polysorbate 20, Ethylhexylglycerin
Glycerin
Butylene Glycol
Panthenol
Chlorphenesin
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Trehalose
Xylitylglucoside
Anhydroxylitol
Disodium EDTA
Sodium Hydroxide
Yeast Extract
Xylitol
Hydrolyzed Hyaluronic Acid
Carrageenan
Agar
Potassium Chloride
Ultramarines
Titanium Dioxide
Water, Glycerin, Butylene Glycol, Panthenol, Pentylene Glycol, Phenoxyethanol, Chlorphenesin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Trehalose, Xylitylglucoside, Sodium Hyaluronate, Anhydroxylitol, Disodium EDTA, Sodium Hydroxide, Yeast Extract, Xylitol, Hydrolyzed Hyaluronic Acid, Carrageenan, Agar, Potassium Chloride, Xanthan Gum, Ultramarines, Titanium Dioxide
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.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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!
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.