Medik8 Liquid Peptides Versus Elemis Peptide4 Antioxidant Hydra-Serum
Updated on November 29, 2023
Overview
What they are
These products are both reef safe serums. They have a total of 9 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, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, parabens, silicones or sulfates
What's Inside
They both contain fragrances
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
Medik8 Liquid Peptides 33 ingredients
Elemis Peptide4 Antioxidant Hydra-Serum 54 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
Medik8 Liquid Peptides 33 ingredients
Elemis Peptide4 Antioxidant Hydra-Serum 54 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Inulin
Skin ConditioningSodium Hyaluronate
Humectant
Panthenol
Skin Conditioning
Alpha-Glucan Oligosaccharide
CleansingCarnosine
Skin Conditioning
Carbomer
Emulsion StabilisingPolysorbate 20
Emulsifying
Caprylyl Glycol
EmollientPhenoxyethanol
Preservative
Hydroxypropyl Cyclodextrin
MaskingDunaliella Salina Extract
Skin ConditioningEthylhexylglycerin
Skin ConditioningCitric Acid
Buffering
Palmitoyl Tripeptide-5
Skin Conditioning
Sodium Benzoate
Masking
Acetyl Hexapeptide-8
Humectant
Tetrapeptide-21
Skin Conditioning
Pentapeptide-18
Skin Conditioning
Palmitoyl Tripeptide-1
Skin Conditioning
Pantolactone
Humectant
Palmitoyl Tripeptide-38
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Glyceryl Caprylate
EmollientLactic Acid/Glycolic Acid Copolymer
Skin ConditioningPolyvinyl Alcohol
Phenylpropanol
Masking
Copper Palmitoyl Heptapeptide-14
Skin Conditioning
Heptapeptide-15 Palmitate
Skin Conditioning
Potassium Sorbate
Preservative
Xanthan Gum
EmulsifyingWater, Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum
Water
Skin ConditioningCoco-Caprylate
Emollient
Glycerin
Humectant
Steareth-2
EmulsifyingCetearyl Alcohol
Emollient
Phenoxyethanol
Preservative
Hydroxyacetophenone
Antioxidant
Phyllanthus Emblica Fruit Extract
HumectantSteareth-21
CleansingPropanediol
Solvent
Diheptyl Succinate
EmollientCarbomer
Emulsion StabilisingDisodium EDTA
Capryloyl Glycerin/Sebacic Acid Copolymer
Skin ConditioningParfum
Masking
Xanthan Gum
EmulsifyingLunaria Annua Seed Oil
Emollient
Sodium Hydroxide
BufferingHydrolyzed Hyaluronic Acid
Humectant
Hydrolyzed Verbascum Thapsus Flower
Antioxidant
Myrothamnus Flabellifolia Leaf/Stem Extract
HumectantCrocus Sativus Flower Extract
MaskingSaccharide Hydrolysate
HumectantLimonene
Perfuming
Cananga Odorata Flower Oil
Masking
Citrus Aurantium Bergamia Fruit Oil
Masking
Citrus Aurantium Dulcis Peel Oil
Masking
Eugenia Caryophyllus Bud Oil
Masking
Juniperus Mexicana Oil
Masking
Lavandula Angustifolia Oil
Masking
Citric Acid
Buffering
Sodium Benzoate
Masking
Tocopherol
Antioxidant
Propylene Glycol Dicaprylate/Dicaprate
EmollientNelumbo Nucifera Flower Extract
Skin ConditioningPotassium Sorbate
Preservative
Ascorbic Acid
Antioxidant
Hydrolyzed Yeast Protein
Skin ConditioningEugenol
Perfuming
Linalool
Perfuming
1,2-Hexanediol
Skin Conditioning
Caprylyl Glycol
EmollientCitrus Aurantium Amara Leaf/Twig Oil
Masking
Polianthes Tuberosa Flower Extract
Perfuming
Rosmarinus Officinalis Leaf Oil
Masking
Vetiveria Zizanoides Root Oil
Masking
Anthemis Nobilis Flower Oil
Masking
Citrus Aurantium Flower Oil
Perfuming
Citronellal
Masking
Jasminum Officinale Flower Extract
Masking
Jasminum Sambac Flower Extract
Masking
Litsea Cubeba Fruit Oil
Masking
Myrocarpus Fastigiatus Oil
Masking
Citrus Aurantium Amara Flower Oil
Masking
Water, Coco-Caprylate, Glycerin, Steareth-2, Cetearyl Alcohol, Phenoxyethanol, Hydroxyacetophenone, Phyllanthus Emblica Fruit Extract, Steareth-21, Propanediol, Diheptyl Succinate, Carbomer, Disodium EDTA, Capryloyl Glycerin/Sebacic Acid Copolymer, Parfum, Xanthan Gum, Lunaria Annua Seed Oil, Sodium Hydroxide, Hydrolyzed Hyaluronic Acid, Hydrolyzed Verbascum Thapsus Flower, Myrothamnus Flabellifolia Leaf/Stem Extract, Crocus Sativus Flower Extract, Saccharide Hydrolysate, Limonene, Cananga Odorata Flower Oil, Citrus Aurantium Bergamia Fruit Oil, Citrus Aurantium Dulcis Peel Oil, Eugenia Caryophyllus Bud Oil, Juniperus Mexicana Oil, Lavandula Angustifolia Oil, Citric Acid, Sodium Benzoate, Tocopherol, Propylene Glycol Dicaprylate/Dicaprate, Nelumbo Nucifera Flower Extract, Potassium Sorbate, Ascorbic Acid, Hydrolyzed Yeast Protein, Eugenol, Linalool, 1,2-Hexanediol, Caprylyl Glycol, Citrus Aurantium Amara Leaf/Twig Oil, Polianthes Tuberosa Flower Extract, Rosmarinus Officinalis Leaf Oil, Vetiveria Zizanoides Root Oil, Anthemis Nobilis Flower Oil, Citrus Aurantium Flower Oil, Citronellal, Jasminum Officinale Flower Extract, Jasminum Sambac Flower Extract, Litsea Cubeba Fruit Oil, Myrocarpus Fastigiatus Oil, Citrus Aurantium Amara Flower Oil
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolCarbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
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 GlycerinPhenoxyethanol 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.
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 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 BenzoateWater. 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 WaterXanthan 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.
Learn more about Xanthan GumIngredient Ratings
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When to use
Medik8 Liquid Peptides 33 ingredients
Elemis Peptide4 Antioxidant Hydra-Serum 54 ingredients
Reviews
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