Ombú Seasonal Cosmetics Ácido Ascórbico 20% (Vitamina C) Versus Tatcha Violet-C Brightening Serum 20% Vitamin C + 10% AHA
Updated on May 13, 2025
Overview
What they are
These products are both vegan, cruelty-free, 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 anti aging, dry skin, brightening skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, oils, 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
Ombú Seasonal Cosmetics Ácido Ascórbico 20% (Vitamina C) 9 ingredients
Tatcha Violet-C Brightening Serum 20% Vitamin C + 10% AHA 30 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
Ombú Seasonal Cosmetics Ácido Ascórbico 20% (Vitamina C) 9 ingredients
Tatcha Violet-C Brightening Serum 20% Vitamin C + 10% AHA 30 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningBis-Glyceryl Ascorbate
Antioxidant
Camellia Sinensis Leaf
Perfuming
Propanediol
Solvent
Butylene Glycol
Humectant
Glycerin
Humectant
Ascorbyl Tetraisopalmitate
Antioxidant
Angelica Acutiloba Root Extract
Skin ConditioningCallicarpa Japonica Fruit Extract
Skin ConditioningPrunus Mume Fruit Extract
Humectant
Crataegus Cuneata Fruit Extract
Skin ConditioningPyrus Malus Fruit Extract
Skin Conditioning
Citrus Paradisi Fruit Extract
Skin ConditioningCitrus Aurantium Dulcis Juice
Skin ConditioningCitrus Limon Juice
Skin Conditioning
Citrus Aurantifolia Juice
CleansingGlycyrrhiza Glabra Root Extract
Bleaching
Scutellaria Baicalensis Root Extract
AstringentArtemisia Capillaris Flower Extract
Skin ConditioningMorus Alba Root Extract
BleachingZiziphus Jujuba Fruit Extract
Skin ConditioningSodium Hyaluronate
Humectant
Lactic Acid
Buffering
Sodium Citrate
BufferingDipotassium Glycyrrhizate
Humectant
Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer
Disodium EDTA
PPG-6-Decyltetradeceth-30
EmulsifyingEthylhexylglycerin
Skin ConditioningPhenoxyethanol
Preservative
Water, Bis-Glyceryl Ascorbate, Camellia Sinensis Leaf, Propanediol, Butylene Glycol, Glycerin, Ascorbyl Tetraisopalmitate, Angelica Acutiloba Root Extract, Callicarpa Japonica Fruit Extract, Prunus Mume Fruit Extract, Crataegus Cuneata Fruit Extract, Pyrus Malus Fruit Extract, Citrus Paradisi Fruit Extract, Citrus Aurantium Dulcis Juice, Citrus Limon Juice, Citrus Aurantifolia Juice, Glycyrrhiza Glabra Root Extract, Scutellaria Baicalensis Root Extract, Artemisia Capillaris Flower Extract, Morus Alba Root Extract, Ziziphus Jujuba Fruit Extract, Sodium Hyaluronate, Lactic Acid, Sodium Citrate, Dipotassium Glycyrrhizate, Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer, Disodium EDTA, PPG-6-Decyltetradeceth-30, Ethylhexylglycerin, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAEthylhexylglycerin (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.
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 GlycerinPhenoxyethanol 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.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolWater. 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
Ombú Seasonal Cosmetics Ácido Ascórbico 20% (Vitamina C) 9 ingredients
Tatcha Violet-C Brightening Serum 20% Vitamin C + 10% AHA 30 ingredients
Reviews
Here's what our community thinks
