Updated on July 29, 2024
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 8 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, scar healing and dark spots
Free From
They both do not contain any common allergens, oils, parabens or silicones
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
Synergie Skin Hyalavive 35 ingredients
Medik8 Hydr8 B5 Intense 43 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
Synergie Skin Hyalavive 35 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Isoamyl Laurate
Emollient
Methylpropanediol
SolventPropanediol
Solvent
Betaine
Humectant
Panthenol
Skin Conditioning
Sodium PCA
Humectant
Hydrolyzed Tomato Skin
Skin ConditioningCaprylyl Glycol
EmollientSodium Lactate
BufferingSodium Hyaluronate
Humectant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingCeramide NP
Skin Conditioning
Ceramide AP
Skin Conditioning
Cholesterol
Emollient
Phytosphingosine
Skin Conditioning
Sodium Cetearyl Sulfate
Cleansing
Ceramide EOP
Skin Conditioning
Behenic Acid
Cleansing
Cetearyl Alcohol
Emollient
Glyceryl Stearate
Emollient
Sodium Levulinate
Skin ConditioningCyanocobalamin
Skin ConditioningSphingomonas Ferment Extract
Skin ConditioningPolyglyceryl-10 Stearate
Skin Conditioning
Phenylpropanol
Masking
Sodium Phytate
Triethyl Citrate
Masking
Polyglyceryl-6 Behenate
Emulsion Stabilising
Citric Acid
Buffering
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Alcohol
Antimicrobial
Sodium Hydroxide
BufferingWater, Glycerin, Isoamyl Laurate, Methylpropanediol, Propanediol, Betaine, Panthenol, Sodium PCA, Hydrolyzed Tomato Skin, Caprylyl Glycol, Sodium Lactate, Sodium Hyaluronate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ceramide NP, Ceramide AP, Cholesterol, Phytosphingosine, Sodium Cetearyl Sulfate, Ceramide EOP, Behenic Acid, Cetearyl Alcohol, Glyceryl Stearate, Sodium Levulinate, Cyanocobalamin, Sphingomonas Ferment Extract, Polyglyceryl-10 Stearate, Phenylpropanol, Sodium Phytate, Triethyl Citrate, Polyglyceryl-6 Behenate, Citric Acid, Potassium Sorbate, Sodium Benzoate, Alcohol, Sodium Hydroxide
Water
Skin ConditioningPanthenol
Skin Conditioning
Glyceryl Glucoside
Humectant
Propylene Glycol
Humectant
Sodium Hyaluronate
Humectant
Glycerin
Humectant
Sodium PCA
Humectant
Amelanchier Alnifolia Fruit Extract
Skin ConditioningUrea
Buffering
Calcium Pantothenate
Trehalose
Humectant
Taurine
BufferingCreatine
Skin ConditioningDiglycerin
Humectant
Acetyl Glucosamine
Skin ConditioningDaucus Carota Sativa Juice
Skin ConditioningGlycine Soja Seed Extract
Skin Conditioning
Lysine Hcl
Skin Conditioning
Alanine
MaskingArginine
Masking
Histidine Hcl
Skin ConditioningBiosaccharide Gum-1
Skin Conditioning
Phenoxyethanol
Preservative
Serine
Masking
Allantoin
Skin Conditioning
Proline
Skin ConditioningLactic Acid
Buffering
Ethylhexylglycerin
Skin ConditioningHydroxyacetophenone
Antioxidant
Hydrolyzed Wheat Protein
Skin ConditioningLysine
Skin ConditioningPCA
Humectant
Sorbitol
Humectant
Glutamic Acid
Humectant
Threonine
Valine
MaskingLeucine
Skin ConditioningGlycine
Buffering
Isoleucine
Skin ConditioningPhenylalanine
Masking
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Citric Acid
Buffering
Water, Panthenol, Glyceryl Glucoside, Propylene Glycol, Sodium Hyaluronate, Glycerin, Sodium PCA, Amelanchier Alnifolia Fruit Extract, Urea, Calcium Pantothenate, Trehalose, Taurine, Creatine, Diglycerin, Acetyl Glucosamine, Daucus Carota Sativa Juice, Glycine Soja Seed Extract, Lysine Hcl, Alanine, Arginine, Histidine Hcl, Biosaccharide Gum-1, Phenoxyethanol, Serine, Allantoin, Proline, Lactic Acid, Ethylhexylglycerin, Hydroxyacetophenone, Hydrolyzed Wheat Protein, Lysine, PCA, Sorbitol, Glutamic Acid, Threonine, Valine, Leucine, Glycine, Isoleucine, Phenylalanine, Potassium Sorbate, Sodium Benzoate, Citric Acid
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidGlycerin 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 GlycerinPanthenol 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.
Learn more about PanthenolPotassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateSodium 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
Synergie Skin Hyalavive 35 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
