SkinMedica HA5 Rejuvenating Hydrator Versus Medik8 Hydr8 B5 Intense
Updated on June 28, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 11 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, scar healing and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
SkinMedica HA5 Rejuvenating Hydrator 45 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
SkinMedica HA5 Rejuvenating Hydrator 45 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethicone
Emollient
Hdi/Trimethylol Hexyllactone Crosspolymer
Glycerin
Humectant
Butylene Glycol
Humectant
Bis-PEG-8 Dimethicone
Skin Conditioning
Polysilicone-11
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingSodium Hyaluronate Crosspolymer
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Sodium Hyaluronate
Humectant
Vitis Vinifera Flower Cell Extract
MaskingVibrio Alginolyticus Ferment Filtrate
Abrasive
Alteromonas Ferment Extract
Skin ConditioningPorphyridium Cruentum Extract
Skin ConditioningWhey Protein
Skin ConditioningPlankton Extract
Skin ConditioningTrehalose
HumectantUrea
Buffering
Serine
MaskingAlgin
Masking
Caprylyl Glycol
EmollientPullulan
Disodium Phosphate
BufferingPotassium Phosphate
BufferingPentylene Glycol
Skin ConditioningPolymethylsilsesquioxane
Glyceryl Polyacrylate
Sodium Citrate
BufferingSea Water
HumectantSucrose Palmitate
EmollientTocopheryl Acetate
Antioxidant
Hydroxyacetophenone
Antioxidant
Polysorbate 60
Emulsifying
Propanediol
SolventPotassium Sorbate
Preservative
Citric Acid
Buffering
Isohexadecane
EmollientPolysorbate 80
Emulsifying
Silica
Abrasive
Decyl Glucoside
CleansingTromethamine
BufferingEthylhexylglycerin
Skin ConditioningPhenoxyethanol
Preservative
Disodium EDTA
Water, Dimethicone, Hdi/Trimethylol Hexyllactone Crosspolymer, Glycerin, Butylene Glycol, Bis-PEG-8 Dimethicone, Polysilicone-11, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Vitis Vinifera Flower Cell Extract, Vibrio Alginolyticus Ferment Filtrate, Alteromonas Ferment Extract, Porphyridium Cruentum Extract, Whey Protein, Plankton Extract, Trehalose, Urea, Serine, Algin, Caprylyl Glycol, Pullulan, Disodium Phosphate, Potassium Phosphate, Pentylene Glycol, Polymethylsilsesquioxane, Glyceryl Polyacrylate, Sodium Citrate, Sea Water, Sucrose Palmitate, Tocopheryl Acetate, Hydroxyacetophenone, Polysorbate 60, Propanediol, Potassium Sorbate, Citric Acid, Isohexadecane, Polysorbate 80, Silica, Decyl Glucoside, Tromethamine, Ethylhexylglycerin, Phenoxyethanol, Disodium EDTA
Water
Skin ConditioningPanthenol
Skin Conditioning
Glyceryl Glucoside
HumectantPropylene Glycol
Humectant
Sodium Hyaluronate
Humectant
Glycerin
Humectant
Sodium PCA
HumectantAmelanchier Alnifolia Fruit Extract
Skin ConditioningUrea
Buffering
Calcium Pantothenate
Trehalose
HumectantTaurine
BufferingCreatine
Skin ConditioningDiglycerin
HumectantAcetyl Glucosamine
Skin ConditioningDaucus Carota Sativa Juice
Skin ConditioningGlycine Soja Seed Extract
Skin ConditioningLysine Hcl
Skin Conditioning
Alanine
MaskingArginine
Masking
Histidine Hcl
Skin ConditioningBiosaccharide Gum-1
Skin ConditioningPhenoxyethanol
Preservative
Serine
MaskingAllantoin
Skin Conditioning
Proline
Skin ConditioningLactic Acid
Buffering
Ethylhexylglycerin
Skin ConditioningHydroxyacetophenone
Antioxidant
Hydrolyzed Wheat Protein
Skin ConditioningLysine
Skin ConditioningPCA
HumectantSorbitol
Humectant
Glutamic Acid
HumectantThreonine
Valine
MaskingLeucine
Skin ConditioningGlycine
Buffering
Isoleucine
Skin ConditioningPhenylalanine
MaskingPotassium 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.
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. Stay hydrated!
Learn more about WaterGlycerin 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 HyaluronateTrehalose is a disaccharide made of two glucose molecules (glucose is sugar!). Trehalose is used to help moisturize skin. It also has antioxidant properties.
As a humectant, trehalose helps draw moisture from the air to your skin. This helps keep your skin hydrated.
Due to its antioxidant properties, trehalose may help with signs of aging. Antioxidants help fight free-radical molecules, unstable molecules that may damage your skin.
In medicine, trehalose and hyaluronic acid are used to help treat dry eyes.
Some animals, plants, and bacteria create trehalose as a source of energy to survive freeze or lack of water.
Learn more about TrehaloseUrea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.
As a humectant, urea helps draw moisture from the air and from deep within the skin. This helps hydrate your skin. Studies show urea is an effective moisturizer for dry skin conditions. 40% urea is typical in medications for treating eczema and other skin conditions.
Urea has the strongest exfoliation effect in concentrations higher than 10%. It is a keratolytic agent, meaning it breaks down the keratin protein in the top layer of skin. This helps remove dead skin cells and flaking skin.
In medicine, urea has been shown to help increase the potency of other ingredients, such as fungal treatments.
Humans and animals use urea to metabolize nitrogen-containing compounds. Urea is highly soluble in water. Once dissolved, it is neither acidic nor alkaline.
Learn more about UreaSerine is an amino acid naturally found in our body. Our bodies use amino acids to create protein.
Amino-acids help give keep our skin hydrated. They play an important role in the skin barrier, which keeps the skin plump and firm.
Serine is a non-essential amino acid, meaning we don't need to obtain it from eating foods.
Learn more about SerineHydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.
This ingredient is not irritating or sensitizing.
Potassium 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 SorbateCitric 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 AcidEthylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
SkinMedica HA5 Rejuvenating Hydrator 45 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
