Philosophy when hope is not enough serum Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum
Updated on February 06, 2025
Overview
What they are
These products are both reef safe serums. They have a total of 13 ingredients in common
Cool Features
They both contain hyaluronic acid, peptides and Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, oils or parabens
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
Philosophy when hope is not enough serum 28 ingredients
Peter Thomas Roth Peptide 21 Wrinkle Resist Serum 56 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Philosophy when hope is not enough serum 28 ingredients
Peter Thomas Roth Peptide 21 Wrinkle Resist Serum 56 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPentylene Glycol
Skin ConditioningGlycerin
Humectant
Palmitoyl Tetrapeptide-7
Skin Conditioning
Palmitoyl Oligopeptide
Cleansing
Glutathione
Allantoin
Skin Conditioning
Aloe Barbadensis Leaf Juice
Skin Conditioning
1,2-Hexanediol
Skin ConditioningPotassium Ascorbyl Tocopheryl Phosphate
Antioxidant
Hydrolyzed Soy Protein
HumectantCarbomer
Emulsion StabilisingButylene Glycol
Humectant
PEG-7 Glyceryl Cocoate
Emulsifying
Parfum
Masking
Sodium Hyaluronate
Humectant
Sodium Hydroxide
BufferingCaprylyl Glycol
EmollientPolysorbate 20
Emulsifying
Glyceryl Polyacrylate
Limonene
Perfuming
Maltodextrin
AbsorbentPotassium Sorbate
Preservative
Ethylhexylglycerin
Skin ConditioningDisodium EDTA
Chlorphenesin
Antimicrobial
BHT
Antioxidant
Phenoxyethanol
Preservative
Water, Pentylene Glycol, Glycerin, Palmitoyl Tetrapeptide-7, Palmitoyl Oligopeptide, Glutathione, Allantoin, Aloe Barbadensis Leaf Juice, 1,2-Hexanediol, Potassium Ascorbyl Tocopheryl Phosphate, Hydrolyzed Soy Protein, Carbomer, Butylene Glycol, PEG-7 Glyceryl Cocoate, Parfum, Sodium Hyaluronate, Sodium Hydroxide, Caprylyl Glycol, Polysorbate 20, Glyceryl Polyacrylate, Limonene, Maltodextrin, Potassium Sorbate, Ethylhexylglycerin, Disodium EDTA, Chlorphenesin, BHT, Phenoxyethanol
Water
Skin ConditioningGlycerin
Humectant
Rosa Centifolia Flower Water
Skin ConditioningIsopropyl Myristate
Emollient
Squalane
Emollient
Mannitol
HumectantButylene Glycol
Humectant
Natto Gum
Tripeptide-10 Citrulline
Skin Conditioning
Acetyl Octapeptide-3
Humectant
Palmitoyl Hexapeptide-12
Skin Conditioning
Acetyl Tetrapeptide-11
Skin Conditioning
Acetyl Hexapeptide-8
Humectant
Acetyl Hexapeptide-1
Skin Conditioning
Palmitoyl Oligopeptide
Cleansing
Acetyl Tetrapeptide-9
Skin Conditioning
Acetyl Tetrapeptide-2
Skin Conditioning
Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Hexapeptide-11
Skin Conditioning
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Skin Conditioning
Palmitoyl Tripeptide-5
Skin Conditioning
Trifluoroacetyl Tripeptide-2
Skin Conditioning
Palmitoyl Tripeptide-1
Skin Conditioning
Sodium Polyglutamate
HumectantSodium Hyaluronate
Humectant
Tocopheryl Acetate
Antioxidant
Retinyl Palmitate
Skin Conditioning
Ascorbic Acid
Antioxidant
Hydrolyzed Soy Protein
HumectantHydrolyzed Wheat Protein
Skin ConditioningLecithin
EmollientPseudoalteromonas Ferment Extract
Humectant
Acrylates Copolymer
Magnesium Chloride
Polysorbate 20
Emulsifying
Dimethyl Isosorbide
SolventAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingLeuconostoc/Radish Root Ferment Filtrate
Antimicrobial
PEG-8 Dimethicone
Emulsifying
Disodium Phosphate
BufferingCarbomer
Emulsion StabilisingDextran
Sodium Lactate
BufferingTetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate
Skin ConditioningXanthan Gum
EmulsifyingTriethanolamine
BufferingSodium Phosphate
BufferingOctyldodecanol
EmollientSilica
Abrasive
Sodium Propoxyhydroxypropyl Thiosulfate Silica
Sodium Hydroxide
BufferingCaprylyl Glycol
EmollientPotassium Sorbate
Preservative
Sodium Benzoate
Masking
Phenoxyethanol
Preservative
Water, Glycerin, Rosa Centifolia Flower Water, Isopropyl Myristate, Squalane, Mannitol, Butylene Glycol, Natto Gum, Tripeptide-10 Citrulline, Acetyl Octapeptide-3, Palmitoyl Hexapeptide-12, Acetyl Tetrapeptide-11, Acetyl Hexapeptide-8, Acetyl Hexapeptide-1, Palmitoyl Oligopeptide, Acetyl Tetrapeptide-9, Acetyl Tetrapeptide-2, Tripeptide-1, Palmitoyl Tetrapeptide-7, Hexapeptide-11, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tripeptide-5, Trifluoroacetyl Tripeptide-2, Palmitoyl Tripeptide-1, Sodium Polyglutamate, Sodium Hyaluronate, Tocopheryl Acetate, Retinyl Palmitate, Ascorbic Acid, Hydrolyzed Soy Protein, Hydrolyzed Wheat Protein, Lecithin, Pseudoalteromonas Ferment Extract, Acrylates Copolymer, Magnesium Chloride, Polysorbate 20, Dimethyl Isosorbide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Leuconostoc/Radish Root Ferment Filtrate, PEG-8 Dimethicone, Disodium Phosphate, Carbomer, Dextran, Sodium Lactate, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Xanthan Gum, Triethanolamine, Sodium Phosphate, Octyldodecanol, Silica, Sodium Propoxyhydroxypropyl Thiosulfate Silica, Sodium Hydroxide, Caprylyl Glycol, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol
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 GlycerinPalmitoyl Tetrapeptide-7 is a peptide. Peptides are building blocks for protein.
This ingredient consists of four amino acids and palmitic acid. These amino acids are arginine, proline, glutamine, and glycine.
This ingredient has many benefits. These benefits include boosting collagen production, fighting inflammation, and reversing UV damage.
By preventing our bodies from producing interleukins, Palmitoyl Tetrapeptide-7 helps fight inflammation. An interleukin is a chemical that signals to the body to produce an inflammatory response. Interleukin production is accelerated by UV radiation.
Palmitoyl Tetrapeptide-7 tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.
Read more about other common types of peptides here:
Learn more about Palmitoyl Tetrapeptide-7Palmitoyl Oligopeptide is a form of peptide. It is created by blending peptides with palmitic acid. Peptides are building blocks for protein.
Due to the palmitic acid base, it may not be malassezia folliculitis safe.
This ingredients tells our body to create more collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.
Read more about other common types of peptides here:
Learn more about Palmitoyl OligopeptideHydrolyzed Soy Protein is a vegan protein made to mimic hydrolyzed collagen. It is created from soy, or glycine soja.
This ingredient is a humectant, meaning it helps hydrate the skin by binding to water. According to a manufacturer, it is also a great hair conditioner.
Read more about hydrolyzed collagen here.
Learn more about Hydrolyzed Soy ProteinCarbomer 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.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Sodium 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 Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideCaprylyl 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 GlycolPolysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.
Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.
The lauric acid used to create Polysorbate 20 is often derived from coconuts.
Polysorbate 20 may not be fungal acne safe.
Learn more about Polysorbate 20Potassium 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 SorbatePhenoxyethanol 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.
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