Paula's Choice Peptide Booster Versus Niod Copper Amino Isolate Serum 2:1 (CAIS2)
Updated on July 18, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 6 ingredients in common
Cool Features
They both contain peptides
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin and reducing pores
Free From
They both do not contain any harsh alcohols, common allergens, 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
Paula's Choice Peptide Booster 56 ingredients
Niod Copper Amino Isolate Serum 2:1 (CAIS2) 26 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Paula's Choice Peptide Booster 56 ingredients
Niod Copper Amino Isolate Serum 2:1 (CAIS2) 26 ingredients
Key Ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
PEG-8 Dimethicone
Emulsifying
Tripeptide-1
Skin Conditioning
Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Palmitoyl Hexapeptide-12
Skin Conditioning
Myristoyl Hexapeptide-16
Skin Conditioning
Myristoyl Pentapeptide-17
Skin Conditioning
Hexanoyl Dipeptide-3 Norleucine Acetate
Skin Conditioning
Azelaoyl Bis-Dipeptide-10
Skin Conditioning
Glycoproteins
Skin Conditioning
Phospholipids
Skin ConditioningAdenosine
Skin Conditioning
Dipotassium Glycyrrhizate
Humectant
Arginine
Masking
Valine
MaskingGlycine
Buffering
Alanine
MaskingGlutamic Acid
HumectantSerine
MaskingThreonine
Yeast Extract
Skin Conditioning
Isoleucine
Skin ConditioningProline
Skin ConditioningHistidine
HumectantPhenylalanine
MaskingPCA
HumectantPhytic Acid
Panax Ginseng Root Extract
Emollient
Sodium PCA
HumectantPsidium Guajava Fruit Extract
AstringentEuterpe Oleracea Fruit Extract
Ahnfeltiopsis Concinna Extract
Skin ConditioningDextran
Hydrolyzed Silk
HumectantLecithin
EmollientGlyceryl Polymethacrylate
C12-16 Pareth-9
EmulsifyingTrideceth-12
EmulsifyingSodium Lactate
BufferingCarbomer
Emulsion StabilisingAspartic Acid
MaskingPolysorbate 20
Emulsifying
Butylene Glycol
Humectant
Caprylyl Glycol
EmollientPEG-8
HumectantC11-15 Pareth-7
EmulsifyingGuar Hydroxypropyltrimonium Chloride
Skin ConditioningPhytosteryl/Octyldodecyl Lauroyl Glutamate
Skin ConditioningEctoin
Skin Conditioning
Citrate Buffer
Trimethylsiloxyamodimethicone
Phenoxyethanol
Preservative
Sodium Hydroxide
BufferingEthylhexylglycerin
Skin ConditioningWater, Glycerin, PEG-8 Dimethicone, Tripeptide-1, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, Myristoyl Hexapeptide-16, Myristoyl Pentapeptide-17, Hexanoyl Dipeptide-3 Norleucine Acetate, Azelaoyl Bis-Dipeptide-10, Glycoproteins, Phospholipids, Adenosine, Dipotassium Glycyrrhizate, Arginine, Valine, Glycine, Alanine, Glutamic Acid, Serine, Threonine, Yeast Extract, Isoleucine, Proline, Histidine, Phenylalanine, PCA, Phytic Acid, Panax Ginseng Root Extract, Sodium PCA, Psidium Guajava Fruit Extract, Euterpe Oleracea Fruit Extract, Ahnfeltiopsis Concinna Extract, Dextran, Hydrolyzed Silk, Lecithin, Glyceryl Polymethacrylate, C12-16 Pareth-9, Trideceth-12, Sodium Lactate, Carbomer, Aspartic Acid, Polysorbate 20, Butylene Glycol, Caprylyl Glycol, PEG-8, C11-15 Pareth-7, Guar Hydroxypropyltrimonium Chloride, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Ectoin, Citrate Buffer, Trimethylsiloxyamodimethicone, Phenoxyethanol, Sodium Hydroxide, Ethylhexylglycerin
Water
Skin ConditioningLactococcus Ferment Lysate
Skin ConditioningGlycerin
Humectant
Ethyl Linoleate
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingHexanoyl Dipeptide-3 Norleucine Acetate
Skin Conditioning
Myristoyl Nonapeptide-3
Skin Conditioning
Yeast Extract
Skin Conditioning
Soy Amino Acids
Skin ConditioningBisabolol
Masking
Pseudoalteromonas Exopolysaccharides
Skin ConditioningLecithin
EmollientSorbitan Isostearate
Emulsifying
Isohexadecane
EmollientPolysorbate 60
Emulsifying
Polyacrylate Crosspolymer-6
Emulsion StabilisingTrisodium Ethylenediamine Disuccinate
Sodium Salicylate
Preservative
Citric Acid
Buffering
Sodium Chloride
Masking
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Pentylene Glycol
Skin ConditioningEthoxydiglycol
HumectantPhenoxyethanol
Preservative
Chlorphenesin
Antimicrobial
Water, Lactococcus Ferment Lysate, Glycerin, Ethyl Linoleate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hexanoyl Dipeptide-3 Norleucine Acetate, Myristoyl Nonapeptide-3, Yeast Extract, Soy Amino Acids, Bisabolol, Pseudoalteromonas Exopolysaccharides, Lecithin, Sorbitan Isostearate, Isohexadecane, Polysorbate 60, Polyacrylate Crosspolymer-6, Trisodium Ethylenediamine Disuccinate, Sodium Salicylate, Citric Acid, Sodium Chloride, Potassium Sorbate, Sodium Benzoate, Pentylene Glycol, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin
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 GlycerinHexanoyl Dipeptide-3 Norleucine Acetate is a peptide.
Yeast extract is a silky, clear liquid derived from yeast (usually Saccharomyces cerevisiae or Torula yeast).
This ingredient has plenty of skin benefits:
Bioferments of yeast and soy have been found to reduce hyperpigmentation at low levels.
Due to its fatty acid content, this ingredient may not be fungal-acne safe.
Learn more about Yeast ExtractLecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.
This ingredient has emollient and emulsifying properties.
As an emollient, lecithen helps soften the skin and creates a barrier to keep moisture in.
As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can also help ingredients be better absorbed by the skin.
This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Learn more about LecithinPhenoxyethanol 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
Paula's Choice Peptide Booster 56 ingredients
Niod Copper Amino Isolate Serum 2:1 (CAIS2) 26 ingredients
