Ultraceuticals Ultra C Firming Serum Versus ZO Skin Health Growth Factor Serum
Updated on June 12, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 4 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 scar healing
Free From
They both do not contain any parabens
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
Ultraceuticals Ultra C Firming Serum 40 ingredients
ZO Skin Health Growth Factor Serum 34 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
Ultraceuticals Ultra C Firming Serum 40 ingredients
ZO Skin Health Growth Factor Serum 34 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAlcohol Denat.
Antimicrobial
Ascorbic Acid
Antioxidant
Dimethyl Isosorbide
SolventGlycerin
Humectant
Glyceryl Polymethacrylate
Polysorbate 20
Emulsifying
Propanediol
Solvent
PEG-8
HumectantButylene Glycol
Humectant
Caprylyl Glycol
EmollientSodium PCA
Humectant
Hydroxyethylcellulose
Emulsion StabilisingCitrus Reticulata Peel Oil
Masking
Sodium Lactate
BufferingDisodium EDTA
Sodium Metabisulfite
Antioxidant
Sodium Sulfite
Preservative
Lavandula Angustifolia Oil
Masking
Anogeissus Leiocarpus Bark Extract
Skin ProtectingCaprylhydroxamic Acid
Pelargonium Graveolens Leaf Oil
Cananga Odorata Flower Oil
Masking
Carbomer
Emulsion StabilisingMenyanthes Trifoliata Leaf Extract
Skin ConditioningAnthemis Nobilis Flower Oil
Masking
Caprooyl Tetrapeptide-3
Skin Protecting
Dextran
Palmitoyl Hexapeptide-12
Skin Conditioning
Disodium Phosphate
BufferingPolysorbate 60
Emulsifying
Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Sodium Phosphate
BufferingLactic Acid
Buffering
Limonene
Perfuming
Linalool
Perfuming
Geraniol
Perfuming
Citronellol
Perfuming
Citral
Perfuming
Water, Alcohol Denat., Ascorbic Acid, Dimethyl Isosorbide, Glycerin, Glyceryl Polymethacrylate, Polysorbate 20, Propanediol, PEG-8, Butylene Glycol, Caprylyl Glycol, Sodium PCA, Hydroxyethylcellulose, Citrus Reticulata Peel Oil, Sodium Lactate, Disodium EDTA, Sodium Metabisulfite, Sodium Sulfite, Lavandula Angustifolia Oil, Anogeissus Leiocarpus Bark Extract, Caprylhydroxamic Acid, Pelargonium Graveolens Leaf Oil, Cananga Odorata Flower Oil, Carbomer, Menyanthes Trifoliata Leaf Extract, Anthemis Nobilis Flower Oil, Caprooyl Tetrapeptide-3, Dextran, Palmitoyl Hexapeptide-12, Disodium Phosphate, Polysorbate 60, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Sodium Phosphate, Lactic Acid, Limonene, Linalool, Geraniol, Citronellol, Citral
Water
Skin ConditioningCyclopentasiloxane
Emollient
Dipropylene Glycol
MaskingPropylene Glycol
Humectant
Dimethicone
Emollient
Glycerin
Humectant
Dimethicone Crosspolymer
Emulsion Stabilising
Dimethicone/PEG-10/15 Crosspolymer
PEG-12 Dimethicone Crosspolymer
EmulsifyingButylene Glycol
Humectant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Sodium Phosphate
BufferingPanthenyl Triacetate
Phospholipids
Skin Conditioning
Magnesium Sulfate
Hydrolyzed Sericin
Skin ConditioningEthyl Linoleate
Emollient
Buddleja Davidii Meristem Cell Culture
Skin ConditioningAngelica Polymorpha Sinensis Root Extract
Skin ConditioningDipeptide Diaminobutyroyl Benzylamide Diacetate
Skin Conditioning
Lactobacillus/Panax Ginseng Root Extract Ferment Filtrate
Skin ConditioningDisodium Acetyl Glucosamine Phosphate
Skin ConditioningAcetyl Tyrosine
Skin ConditioningDimethiconol
Emollient
Oleyl Alcohol
Emollient
Proline
Skin ConditioningParfum
Masking
Tocopherol
Antioxidant
Beta-Glucan
Skin Conditioning
Adenosine Triphosphate
Skin ConditioningHydrolyzed Vegetable Protein
Skin ConditioningSodium Chloride
Masking
Xanthan Gum
EmulsifyingPhenoxyethanol
Preservative
Water, Cyclopentasiloxane, Dipropylene Glycol, Propylene Glycol, Dimethicone, Glycerin, Dimethicone Crosspolymer, Dimethicone/PEG-10/15 Crosspolymer, PEG-12 Dimethicone Crosspolymer, Butylene Glycol, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Phosphate, Panthenyl Triacetate, Phospholipids, Magnesium Sulfate, Hydrolyzed Sericin, Ethyl Linoleate, Buddleja Davidii Meristem Cell Culture, Angelica Polymorpha Sinensis Root Extract, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Lactobacillus/Panax Ginseng Root Extract Ferment Filtrate, Disodium Acetyl Glucosamine Phosphate, Acetyl Tyrosine, Dimethiconol, Oleyl Alcohol, Proline, Parfum, Tocopherol, Beta-Glucan, Adenosine Triphosphate, Hydrolyzed Vegetable Protein, Sodium Chloride, Xanthan Gum, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolGlycerin 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 GlycerinWe don't have a description for Sodium Phosphate yet.
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 WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Ultraceuticals Ultra C Firming Serum 40 ingredients
ZO Skin Health Growth Factor Serum 34 ingredients
Reviews
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