Glow Recipe Guava Vitamin C Dark Spot Treatment Serum Versus Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum
Updated on March 12, 2024
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 9 ingredients in common
Cool Features
They both contain Vitamin C
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 parabens, silicones 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
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 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
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropanediol
Solvent
C9-12 Alkane
SolventPsidium Guajava Fruit Extract
AstringentTetrahexyldecyl Ascorbate
Antioxidant
Tranexamic Acid
Astringent
Sodium Polyacryloyldimethyl Taurate
Emulsion Stabilising3-O-Ethyl Ascorbic Acid
Skin Conditioning
Ascorbyl Glucoside
Antioxidant
Magnesium Ascorbyl Phosphate
Antioxidant
Sodium Ascorbyl Phosphate
Antioxidant
Psidium Guajava Seed Oil
Emollient
Tocopherol
Antioxidant
Tocopheryl Acetate
Antioxidant
Sodium Hyaluronate
Humectant
Ferulic Acid
Antimicrobial
Tremella Fuciformis Sporocarp Extract
Antioxidant
Pyrus Malus Fruit Extract
Skin Conditioning
Musa Sapientum Fruit Extract
Skin ConditioningPrunus Armeniaca Kernel Extract
Skin ConditioningPyrus Communis Fruit Extract
Skin ConditioningRubus Idaeus Fruit Extract
AstringentMelia Azadirachta Flower Extract
Skin ConditioningMelia Azadirachta Leaf Extract
Skin ConditioningCorallina Officinalis Extract
Skin Conditioning
Coccinia Indica Fruit Extract
Skin ConditioningHexanoyl Dipeptide-3 Norleucine Acetate
Skin Conditioning
Polyglyceryl-10 Dioleate
Emulsifying
Glycerin
Humectant
1,2-Hexanediol
Skin Conditioning
Caprylic/Capric Triglyceride
Masking
Caprylyl Glycol
EmollientHydroxyacetophenone
Antioxidant
Sodium Stearoyl Glutamate
CleansingCoco-Caprylate/Caprate
Emollient
Betaine
Humectant
Lecithin
Emollient
Polyglyceryl-10 Dipalmitate
Emollient
Sodium Citrate
BufferingSodium Phytate
Potassium Sorbate
Preservative
Decyl Glucoside
CleansingLauryl Glucoside
CleansingEthylhexylglycerin
Skin ConditioningCitric Acid
Buffering
Xanthan Gum
EmulsifyingPhenoxyethanol
Preservative
Water, Propanediol, C9-12 Alkane, Psidium Guajava Fruit Extract, Tetrahexyldecyl Ascorbate, Tranexamic Acid, Sodium Polyacryloyldimethyl Taurate, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Magnesium Ascorbyl Phosphate, Sodium Ascorbyl Phosphate, Psidium Guajava Seed Oil, Tocopherol, Tocopheryl Acetate, Sodium Hyaluronate, Ferulic Acid, Tremella Fuciformis Sporocarp Extract, Pyrus Malus Fruit Extract, Musa Sapientum Fruit Extract, Prunus Armeniaca Kernel Extract, Pyrus Communis Fruit Extract, Rubus Idaeus Fruit Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Hexanoyl Dipeptide-3 Norleucine Acetate, Polyglyceryl-10 Dioleate, Glycerin, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Caprylyl Glycol, Hydroxyacetophenone, Sodium Stearoyl Glutamate, Coco-Caprylate/Caprate, Betaine, Lecithin, Polyglyceryl-10 Dipalmitate, Sodium Citrate, Sodium Phytate, Potassium Sorbate, Decyl Glucoside, Lauryl Glucoside, Ethylhexylglycerin, Citric Acid, Xanthan Gum, Phenoxyethanol
Water
Skin ConditioningGlycerin
Humectant
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Niacinamide
Smoothing
Glycereth-7 Triacetate
EmollientLactic Acid
Buffering
Sd Alcohol 40-B
Astringent
Hydroxyethylcellulose
Emulsion StabilisingDimethyl Isosorbide
SolventAscorbic Acid
Antioxidant
Collagen Amino Acids
Moisturising
Superoxide Dismutase
Antioxidant
Glycine
Buffering
Carnitine Hcl
HumectantUbiquinone
Antioxidant
Hexylresorcinol
Antimicrobial
Emblica Officinalis Fruit Extract
Skin ConditioningHydrolyzed Soy Protein
Humectant
Tetrahexyldecyl Ascorbate
Antioxidant
Isoquercetin
Antioxidant
Mandelic Acid
Antimicrobial
Pueraria Lobata Root Extract
HumectantCurcuma Longa Root Extract
Masking
Phytic Acid
Citric Acid
Buffering
Tetrasodium EDTA
Sodium Citrate
BufferingButylene Glycol
Humectant
Xanthan Gum
EmulsifyingPolysorbate 20
Emulsifying
T-Butyl Alcohol
Perfuming
Sodium Hydroxide
BufferingPolysorbate 80
Emulsifying
Denatonium Benzoate
Masking
Benzyl Alcohol
Perfuming
Phenoxyethanol
Preservative
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Water, Glycerin, 3-O-Ethyl Ascorbic Acid, Niacinamide, Glycereth-7 Triacetate, Lactic Acid, Sd Alcohol 40-B, Hydroxyethylcellulose, Dimethyl Isosorbide, Ascorbic Acid, Collagen Amino Acids, Superoxide Dismutase, Glycine, Carnitine Hcl, Ubiquinone, Hexylresorcinol, Emblica Officinalis Fruit Extract, Hydrolyzed Soy Protein, Tetrahexyldecyl Ascorbate, Isoquercetin, Mandelic Acid, Pueraria Lobata Root Extract, Curcuma Longa Root Extract, Phytic Acid, Citric Acid, Tetrasodium EDTA, Sodium Citrate, Butylene Glycol, Xanthan Gum, Polysorbate 20, T-Butyl Alcohol, Sodium Hydroxide, Polysorbate 80, Denatonium Benzoate, Benzyl Alcohol, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate
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 WaterTetrahexyldecyl Ascorbate (THD) is a stable and oil-soluble form of Vitamin C.
THD is special in that it has the ability to travel deeper into skin than traditional ascorbic acid while maintaining the same skin benefits (double win!).
Because itโs oil-soluble, THD dives deep into your skinโs fatty layers (think ceramides and cholesterol) to fight off the kind of free radicals that mess with your skin barrier. This makes it a great pair with water-based vitamin C (ascorbic acid) that mainly works on the surface.
Even at just 0.1%, THD is already showing great antioxidant activity. When used up to 2%, it helps keep your skin happy and calm, especially when itโs stressed from pollution or sun.
Want to fade dark spots or tackle hyperpigmentation? Youโll want 5% or more. Pairing it with brightening buddies like niacinamide or licorice root gives even better results. One study even used 30% THD with other brighteners and saw real results on stubborn discoloration, even in melasma-prone skin.
A note on THD: Itโs has a slightly silky, oily texture and usually shows up colorless or pale yellow (though the exact shade can vary by supplier).
While you can sneak it into water-based formulas, it really shines when paired with silicones or oils, which help your skin soak it up better.
THD is pretty stable, but itโs still vulnerable to degradation like ascorbic acid. Too much light or heat (above 113ยฐF / 45ยฐC) can break it down over time. Go for dark and opaque packaging that keeps it safe and shady!
Read more about other types of Vitamin C:
Learn more about Tetrahexyldecyl AscorbateYou might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.
3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.
Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.
The optimum pH range for this ingredient is 4 - 5.5
Learn more about 3-O-Ethyl Ascorbic 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 GlycerinSodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Its main functions are to maintain the pH of a product and neutralize metal ions.
The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).
Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Learn more about Sodium CitratePotassium 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 SorbateCitric 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 AcidXanthan 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 GumPhenoxyethanol 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
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
Dr. Dennis Gross Skincare C+ Collagen Brighten & Firm Vitamin C Serum 38 ingredients
Reviews
Here's what our community thinks
Glow Recipe Guava Vitamin C Dark Spot Treatment Serum 47 ingredients
โ.เณเฟ*:๏ฝฅ ๐ค
๐ฅฅ ๐๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐ฒ๐ฉ๐: ๐๐ซ๐ฒ/๐ฌ๐๐ง๐ฌ๐ข๐ญ๐ข๐ฏ๐, ๐๐๐ง๐ ๐๐ง๐ ๐๐๐ณ๐๐ฆ๐ ๐ฉ๐ซ๐จ๐ง๐.
๐ชด ๐๐ซ๐จ๐ฌ:
ยทห เผโยท ออออ๊ฐโณ ๐๐ญ'๐ฌ ๐๐๐๐ข๐ง๐ข๐ญ๐๐ฅ๐ฒ ๐๐๐๐๐๐ญ๐ข๐ฏ๐ ๐๐ญ ๐๐ซ๐ข๐ ๐ก๐ญ๐๐ง๐ข๐ง๐ ๐๐ง๐ ๐ฆ๐๐ค๐ข๐ง๐ ๐ฆ๐ฒ ๐ฌ๐ค๐ข๐ง ๐ญ๐จ๐ง๐ ๐ฆ๐จ๐ซ๐ ๐๐ฏ๐๐ง. ๐๐ข๐๐ ๐ญ๐๐ฑ๐ญ๐ฎ๐ซ๐, ๐ง๐จ๐ญ ๐ฌ๐ญ๐ข๐๐ค๐ฒ ๐๐ง๐ ๐ฌ๐ข๐ง๐ค๐ฌ ๐ข๐ง ๐ฐ๐๐ฅ๐ฅ. ๐๐๐ฅ๐ฉ๐ฌ ๐ญ๐จ ๐๐ข๐ ๐ก๐ญ ๐๐๐ง๐ ๐ญ๐จ๐จ ๐๐ง๐ ๐๐๐๐ฅ๐ฌ ๐ซ๐๐๐ฅ๐ฅ๐ฒ ๐ฌ๐จ๐จ๐ญ๐ก๐ข๐ง๐ .
๐ต ๐๐จ๐ง๐ฌ:
โฐโโค ๐ ๐ ๐จ๐ญ ๐ญ๐ก๐ข๐ฌ ๐๐ฌ ๐ "๐๐ซ๐๐ ๐ ๐ข๐๐ญ" (๐๐ฎ๐ฅ๐ฅ ๐ฌ๐ข๐ณ๐๐) ๐๐ฎ๐ซ๐ข๐ง๐ ๐ ๐ฉ๐ซ๐จ๐ฆ๐จ๐ญ๐ข๐จ๐ง ๐๐ง๐ ๐ฉ๐ซ๐จ๐๐๐๐ฅ๐ฒ ๐ฐ๐จ๐ฎ๐ฅ๐๐ง'๐ญ ๐ก๐๐ฏ๐ ๐ญ๐ซ๐ข๐๐ ๐ข๐ญ ๐ฐ๐ข๐ญ๐ก๐จ๐ฎ๐ญ ๐ญ๐ก๐ Show more
Full of amazing ingredients; has totally reduced the need for me to cocktail and upset my ph balance.
