ISANA Intensiv Serum Vitamin C 10% Versus Dr. Althea Vitamin C Boosting Serum
Updated on March 25, 2025
Overview
What they are
These products are both fungal acne (malassezia) safe and reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain Vitamin C
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, oils, parabens, silicones or sulfates
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
ISANA Intensiv Serum Vitamin C 10% 20 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
ISANA Intensiv Serum Vitamin C 10% 20 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Water
Skin Conditioning3-O-Ethyl Ascorbic Acid
Skin Conditioning
Betaine
Humectant
Glycerin
Humectant
Disodium Phosphate
BufferingCaprylyl/Capryl Glucoside
CleansingCitric Acid
Buffering
Citrus Grandis Fruit Extract
Astringent
Biosaccharide Gum-1
Skin ConditioningPhenoxyethanol
Preservative
Sclerotium Gum
Emulsion StabilisingPropylene Glycol
Humectant
Xanthan Gum
EmulsifyingParfum
Masking
Ethylhexylglycerin
Skin ConditioningLimonene
Perfuming
Linalool
Perfuming
Potassium Sorbate
Preservative
Geraniol
Perfuming
Alpha-Isomethyl Ionone
Perfuming
Water, 3-O-Ethyl Ascorbic Acid, Betaine, Glycerin, Disodium Phosphate, Caprylyl/Capryl Glucoside, Citric Acid, Citrus Grandis Fruit Extract, Biosaccharide Gum-1, Phenoxyethanol, Sclerotium Gum, Propylene Glycol, Xanthan Gum, Parfum, Ethylhexylglycerin, Limonene, Linalool, Potassium Sorbate, Geraniol, Alpha-Isomethyl Ionone
Hippophae Rhamnoides Water
Masking
Centella Asiatica Leaf Water
Skin Conditioning
Niacinamide
Smoothing
Butylene Glycol
Humectant
1,2-Hexanediol
Skin ConditioningDipropylene Glycol
MaskingWater
Skin ConditioningMethyl Gluceth-20
HumectantMethylpropanediol
SolventBetaine
Humectant
Tranexamic Acid
Astringent
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningPropanediol
SolventHydroxyethyl Urea
HumectantLaminaria Japonica Extract
Skin ProtectingEclipta Prostrata Leaf Extract
Skin ConditioningFicus Carica Fruit Extract
HumectantCentella Asiatica Extract
Cleansing
Hydrogenated Lecithin
EmulsifyingSodium Hyaluronate
Humectant
Carbomer
Emulsion Stabilising3-O-Ethyl Ascorbic Acid
Skin Conditioning
C12-14 Pareth-12
EmulsifyingAmmonium Acryloyldimethyltaurate/Vp Copolymer
Xanthan Gum
EmulsifyingTromethamine
BufferingPanthenol
Skin Conditioning
Ethylhexylglycerin
Skin ConditioningAdenosine
Skin Conditioning
Disodium EDTA
Fructooligosaccharides
HumectantBeta-Glucan
Skin Conditioning
Ascorbic Acid
Antioxidant
Hydrolyzed Hyaluronic Acid
Humectant
Ceramide NP
Skin Conditioning
Alpha-Arbutin
Antioxidant
Tocopherol
Antioxidant
Bifida Ferment Lysate
Skin Conditioning
Bisabolol
Masking
Ubiquinone
Antioxidant
Hydroxydecyl Ubiquinone
Antioxidant
Sodium Acetylated Hyaluronate
Humectant
Hippophae Rhamnoides Water, Centella Asiatica Leaf Water, Niacinamide, Butylene Glycol, 1,2-Hexanediol, Dipropylene Glycol, Water, Methyl Gluceth-20, Methylpropanediol, Betaine, Tranexamic Acid, Glycerin, Pentylene Glycol, Propanediol, Hydroxyethyl Urea, Laminaria Japonica Extract, Eclipta Prostrata Leaf Extract, Ficus Carica Fruit Extract, Centella Asiatica Extract, Hydrogenated Lecithin, Sodium Hyaluronate, Carbomer, 3-O-Ethyl Ascorbic Acid, C12-14 Pareth-12, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Xanthan Gum, Tromethamine, Panthenol, Ethylhexylglycerin, Adenosine, Disodium EDTA, Fructooligosaccharides, Beta-Glucan, Ascorbic Acid, Hydrolyzed Hyaluronic Acid, Ceramide NP, Alpha-Arbutin, Tocopherol, Bifida Ferment Lysate, Bisabolol, Ubiquinone, Hydroxydecyl Ubiquinone, Sodium Acetylated Hyaluronate
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 WaterYou 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 AcidBetaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
This ingredient is best for improving hydration and soothing irritated skin. Studies also show it helps even out skin tone.
Fun fact: Betaine is naturally created in the skin and body. The kind found within cosmetic products can be either plant-derived or synthetic.
Learn more about BetaineGlycerin 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 GlycerinXanthan 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 GumEthylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
ISANA Intensiv Serum Vitamin C 10% 20 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
Reviews
Here's what our community thinks
ISANA Intensiv Serum Vitamin C 10% 20 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
The best serum i've tried, FA safe which is good for acne-prone/combo/oily skin types. I saw that this serum will get rid off acne in just 3days and it was correct. It rlly got rid of my acne in just 3days(I only used it in my morning routine)
BREAK ME OUT!
I have sensitive and combination skin. I bought it, but it was really strong for me. I don't know why, but maybe because I have a sensitivity to vitamin C? Especially with this 63%, It's too strong for my skin, and I was really affected by it.
Please be careful when buying skincare products and always make sure to start with small amounts and do a patch test!
