Neutrogena Hydro Boost Hydrating Serum Versus Replenix Hyaluronic Acid Hydration Serum
Overview
What they are
These products are both reef safe serums. They have a total of 4 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, sensitive skin, oily skin, scar healing and dark spots
Free From
They both do not contain any oils, 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
Neutrogena Hydro Boost Hydrating Serum 30 ingredients
Replenix Hyaluronic Acid Hydration Serum 13 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
Neutrogena Hydro Boost Hydrating Serum 30 ingredients
Replenix Hyaluronic Acid Hydration Serum 13 ingredients
Benefits
Concerns
Benefits
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
BufferingCetearyl Olivate
Bisabolol
Masking
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 ConditioningPortulaca 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
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Glycerin 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 HyaluronateSodium PCA is the sodium salt of pyroglutamic acid. It is naturally occurring in our skin's natural moisturizing factors where it works to maintain hydration.
The PCA stands for pyrrolidone carboxylic acid, a natural amino acid derivative.
This ingredient has skin conditioning, anti-inflammatory, and humectant properties. Humectants help hydrate your skin by drawing moisture from the air. This helps keep your skin moisturized.
Learn more about Sodium PCAWater. 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 WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Neutrogena Hydro Boost Hydrating Serum 30 ingredients
Replenix Hyaluronic Acid Hydration Serum 13 ingredients
