Here's our complete breakdown comparing the ingredients, attributes, and more of Paula's Choice Peptide Booster versus Carrot & Stick The Repair Serum .
Published on August 10, 2023
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 20 ingredients in common
Cool Features
They both contain peptides
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and dark spots
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 need an update? Let us know.
Facial Treatment
Facial treatments are specially designed to treat a skin concern. Acne treatments and anti-aging products are common examples of facial treatments.
Serum
Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.
Ingredient Info
Paula's Choice Peptide Booster 56 ingredients
Carrot & Stick The Repair Serum 55 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Paula's Choice Peptide Booster 56 ingredients
Carrot & Stick The Repair Serum 55 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 8 ingredients that may have this attribute:
Benefits
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 6 ingredients that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Build your routine, track which ingredients work for you, and much more with your free account.
Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Paula's Choice Peptide Booster 56 ingredients
Carrot & Stick The Repair Serum 55 ingredients
Water • 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 • Niacinamide • Glycerin • Acacia Senegal Gum • Hydrolyzed Rhizobian Gum • Camellia Sinensis Leaf Extract • Chamomilla Recutita Flower Extract • PCA • Sodium PCA • Sh-Oligopeptide-1 • Sh-Oligopeptide-2 • Sh-Polypeptide-1 • Sh-Polypeptide-11 • Sh-Polypeptide-9 • Sodium Hyaluronate • Acetyl Hexapeptide-8 • Arginine • Aspartic Acid • Acetyl Glutamine • Lecithin • Carnitine • Alanine • Glycine • Histidine • Isoleucine • Phenylalanine • Proline • Serine • Threonine • Valine • Caffeine • Ruscus Aculeatus Root Extract • Chenopodium Quinoa Seed Extract • Bacillus • Citrus Reticulata Peel Extract • Codonopsis Lanceolata Extract • Coix Lacryma-Jobi Ma-Yuen Seed Extract • Chrysanthemum Morifolium Flower Extract • Echinacea Purpurea Flower/Leaf/Stem Extract • Glycyrrhiza Glabra Root Extract • Nelumbo Nucifera Seed Extract • Paeonia Suffruticosa Root Water • Paeonia Albiflora Flower Extract • Polygonum Odoratum Extract • Sodium Lactate • Polyglutamic Acid • Xanthan Gum • Butylene Glycol • 1,2-Hexanediol • Citric Acid • Caprylyl Glycol • Sodium Benzoate • Sodium Levulinate • Potassium Sorbate • Phenoxyethanol
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterPaula's Choice Peptide Booster contains this as ingredient number 1.
Carrot & Stick The Repair Serum contains this as ingredient number 1.
Glycerin 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 GlycerinPaula's Choice Peptide Booster contains this as ingredient number 2.
Carrot & Stick The Repair Serum contains this as ingredient number 3.
Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArgininePaula's Choice Peptide Booster contains this as ingredient number 16.
Carrot & Stick The Repair Serum contains this as ingredient number 17.
We don't have a description for Valine.
Paula's Choice Peptide Booster contains this as ingredient number 17.
Carrot & Stick The Repair Serum contains this as ingredient number 30.
Glycine is an amino acid that helps build proteins. It is already present in our skin as our bodies produce them naturally.
Glycine helps keep skin hydrated and reduce signs of aging. Amino acids help transport moisture throughout our skin; glycine already plays a role in helping keep our skin moisturized.
As collagen is made up of glycine and other amino acids, it is believed Glycine may help our skin produce more collagen. Collagen helps keep skin plump and firm.
Learn more about GlycinePaula's Choice Peptide Booster contains this as ingredient number 18.
Carrot & Stick The Repair Serum contains this as ingredient number 23.
Alanine is an amino acid and is already found in the human body.
Alanine has antioxidant properties and can help with anti-aging.
Alanine is used by fibrous proteins such as collagen, elastin, and keratin. These three help make a strong skin barrier. Having a healthy skin barrier leads to more plump and youthful skin.
Learn more about AlaninePaula's Choice Peptide Booster contains this as ingredient number 19.
Carrot & Stick The Repair Serum contains this as ingredient number 22.
Serine 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 SerinePaula's Choice Peptide Booster contains this as ingredient number 21.
Carrot & Stick The Repair Serum contains this as ingredient number 28.
Threonine is an amino-acid. It helps hydrate the skin and has antioxidant benefits.
Threonine is vital for creating collagen and elastin. Collagen and elastin support youthful and firm skin. Our bodies decrease collagen production naturally with age.
Humans are not able to create threonine and must get it through eating foods such as fish, lentils, poultry, sesame seeds, and more.
Learn more about ThreoninePaula's Choice Peptide Booster contains this as ingredient number 22.
Carrot & Stick The Repair Serum contains this as ingredient number 29.
We don't have a description for Isoleucine.
Paula's Choice Peptide Booster contains this as ingredient number 24.
Carrot & Stick The Repair Serum contains this as ingredient number 25.
Proline is an amino-acid. It helps moisturize the skin and plays an important role in creating proteins.
Proline is one of the building blocks for producing collagen. As we age, our bodies produce less collagen. Collagen helps the skin look plump and firm.
In medicine, proline is used as an osmoprotectant. This means it helps prevent oxidative degradation in other drugs.
Our bodies are able to produce proline naturally, but certain conditions may inhibit this production. In that case, proline can be obtained from eating egg whites, soy protein, dairy products, asparagus, mushrooms, and seaweed.
Learn more about ProlinePaula's Choice Peptide Booster contains this as ingredient number 25.
Carrot & Stick The Repair Serum contains this as ingredient number 27.
We don't have a description for Histidine.
Paula's Choice Peptide Booster contains this as ingredient number 26.
Carrot & Stick The Repair Serum contains this as ingredient number 24.
Phenylalanine is an amino acid. It is a skin soothing and hydrating ingredient. Amino acids play a crucial role in wound healing and skin hydration.
Phenylalanine is also used to help even out skin tone due to its ability to disrupt the melanin production process.
Two structures of phenylalanine exist: L-phenylalanine and D-phenylalanine. L-phenylalanine is essential, this means our bodies cannot produce it naturally and we must get it from foods. Our bodies convert D-phenylalanine to neurotransmitters, and D-phenylalanine is found in our bodies naturally.
Some foods that contain L-phenylalanine include eggs, soybeans, beef, milk.
Learn more about PhenylalaninePaula's Choice Peptide Booster contains this as ingredient number 27.
Carrot & Stick The Repair Serum contains this as ingredient number 26.
PCA is derived from amino acids and is naturally found in our skin's barrier.
As a humectant, PCA helps draw and hold moisture to the skin. Studies show it is effective at helping the skin stay hydrated long-term.
Paula's Choice Peptide Booster contains this as ingredient number 28.
Carrot & Stick The Repair Serum contains this as ingredient number 8.
Sodium PCA is the sodium salt of pyroglutamic acid and is naturally occurring on human skin.
The PCA stands for pyrrolidone carboxylic acid, a natural amino acid derivative.
Sodium PCA is a has 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 PCAPaula's Choice Peptide Booster contains this as ingredient number 31.
Carrot & Stick The Repair Serum contains this as ingredient number 9.
Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.
Lecithin is an emollient. Emollients help 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 help ingredients be better absorbed by the skin. The phospholipids in Lecithin can produce liposomes. Liposomes help other ingredients get through the skin barrier.
Learn more about LecithinPaula's Choice Peptide Booster contains this as ingredient number 37.
Carrot & Stick The Repair Serum contains this as ingredient number 20.
Sodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and used to adjust the pH of a product.
Sodium Lactate is part of our skin's NMF, or natural moisturizing factor. Our NMF is essential for the hydration of our top skin layers and plasticity of skin.
It also influences our skin's natural acid mantle and pH, which protects our skin from harmful bacteria.
Our NMF is formed from amino acids, lactic acid, sugars, minerals, peptides, and electrolytes. As we age, our NMF naturally depletes. Other sources of NMF depletion include harsh and drying ingredients such as denatured alcohol. Sodium lactate can help replenish our NMF, leading to more hydrated and plump skin.
High percentages of Sodium Lactate can have an exfoliating effect.
Sodium Lactate is produced from fermented sugar.
Learn more about Sodium LactatePaula's Choice Peptide Booster contains this as ingredient number 41.
Carrot & Stick The Repair Serum contains this as ingredient number 45.
Aspartic Acid is an amino acid that our bodies produce naturally. It is an antioxidant.
Our body uses Aspartic Acid to help build collagen and elastin. It also plays a role in hydrating skin.
Antioxidants help mitigate damage from free-radical molecules. These are molecules that originate from external sources such as pollution, cigarette smoke, or the sun.
Learn more about Aspartic AcidPaula's Choice Peptide Booster contains this as ingredient number 43.
Carrot & Stick The Repair Serum contains this as ingredient number 18.
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.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Paula's Choice Peptide Booster contains this as ingredient number 45.
Carrot & Stick The Repair Serum contains this as ingredient number 48.
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 GlycolPaula's Choice Peptide Booster contains this as ingredient number 46.
Carrot & Stick The Repair Serum contains this as ingredient number 51.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Paula's Choice Peptide Booster contains this as ingredient number 54.
Carrot & Stick The Repair Serum contains this as ingredient number 55.
Here's what our community thinks of the ingredients in these two products.
Paula's Choice Peptide Booster 56 ingredients
Carrot & Stick The Repair Serum 55 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Paula's Choice Peptide Booster 56 ingredients
Carrot & Stick The Repair Serum 55 ingredients
Alternatives
Our Dupe Finder has found 9 potential alternatives that have similar ingredients to Paula's Choice Peptide Booster.
See 9 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Carrot & Stick The Repair Serum.
See 50 alternatives