Theramid C-Tetra E.F. Versus Tula Skincare Brightening Treatment Drops Triple Vitamin C Serum
Updated on August 07, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 11 ingredients in common
Cool Features
They both contain exfoliants and Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, reducing pores, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, 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
Theramid C-Tetra E.F. 21 ingredients
Tula Skincare Brightening Treatment Drops Triple Vitamin C Serum 38 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Theramid C-Tetra E.F. 21 ingredients
Tula Skincare Brightening Treatment Drops Triple Vitamin C Serum 38 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAscorbyl Tetraisopalmitate
Antioxidant
Propanediol
SolventAscorbyl Glucoside
Antioxidant
Glycerin
Humectant
Tricaprylin
Masking
Methylpropanediol
SolventGlycine Soja Seed Extract
Skin ConditioningTocopheryl Acetate
Antioxidant
Ascorbyl Methylsilanol Pectinate
Antioxidant
Ferulic Acid
Antimicrobial
Lecithin
EmollientSclerotium Gum
Emulsion StabilisingPullulan
Xanthan Gum
EmulsifyingSilica
Abrasive
Sodium Hydroxide
BufferingSodium Citrate
BufferingCitric Acid
Buffering
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Water, Ascorbyl Tetraisopalmitate, Propanediol, Ascorbyl Glucoside, Glycerin, Tricaprylin, Methylpropanediol, Glycine Soja Seed Extract, Tocopheryl Acetate, Ascorbyl Methylsilanol Pectinate, Ferulic Acid, Lecithin, Sclerotium Gum, Pullulan, Xanthan Gum, Silica, Sodium Hydroxide, Sodium Citrate, Citric Acid, Sodium Benzoate, Potassium Sorbate
Water
Skin Conditioning3-O-Ethyl Ascorbic Acid
Skin Conditioning
Lactococcus Ferment Lysate
Skin ConditioningPropanediol
Solvent1,2-Hexanediol
Skin ConditioningAscorbyl Glucoside
Antioxidant
Sodium Citrate
BufferingPentylene Glycol
Skin ConditioningCichorium Intybus Root Extract
MaskingMelia Azadirachta Leaf Extract
Skin ConditioningMelia Azadirachta Flower Extract
Skin ConditioningCorallina Officinalis Extract
Skin ConditioningCurcuma Longa Root Extract
Masking
Ocimum Basilicum Flower/Leaf Extract
TonicLactic Acid
Buffering
Ocimum Sanctum Leaf Extract
Skin ConditioningVaccinium Vitis-Idaea Fruit Extract
Antioxidant
Citrus Unshiu Peel Extract
MaskingHippophae Rhamnoides Fruit Extract
Skin ConditioningLitchi Chinensis Seed Extract
Skin ConditioningMangifera Indica Leaf Extract
Skin ConditioningGold
Cosmetic ColorantGlutathione
Hydroxyacetophenone
Antioxidant
Acetyl Cysteine
Antioxidant
Sodium Sulfite
Preservative
Sorbitol
Humectant
Citric Acid
Buffering
Sclerotium Gum
Emulsion StabilisingXanthan Gum
EmulsifyingCaprylyl Glycol
EmollientAscorbic Acid
Antioxidant
Sodium Phytate
Lecithin
EmollientPullulan
Silica
Abrasive
Sodium Chloride
Masking
Sodium Benzoate
Masking
Water, 3-O-Ethyl Ascorbic Acid, Lactococcus Ferment Lysate, Propanediol, 1,2-Hexanediol, Ascorbyl Glucoside, Sodium Citrate, Pentylene Glycol, Cichorium Intybus Root Extract, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Corallina Officinalis Extract, Curcuma Longa Root Extract, Ocimum Basilicum Flower/Leaf Extract, Lactic Acid, Ocimum Sanctum Leaf Extract, Vaccinium Vitis-Idaea Fruit Extract, Citrus Unshiu Peel Extract, Hippophae Rhamnoides Fruit Extract, Litchi Chinensis Seed Extract, Mangifera Indica Leaf Extract, Gold, Glutathione, Hydroxyacetophenone, Acetyl Cysteine, Sodium Sulfite, Sorbitol, Citric Acid, Sclerotium Gum, Xanthan Gum, Caprylyl Glycol, Ascorbic Acid, Sodium Phytate, Lecithin, Pullulan, Silica, Sodium Chloride, Sodium Benzoate
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 WaterPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
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 PropanediolAscorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
When applied to skin, Ascorbyl Glucoside turns into Ascorbic Acid.
Ascorbyl Glucoside is an antioxidant. Antioxidants help fight free-radicals, or molecules that may damage skin cells.
It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.
Read more about other types of Vitamin C:
Learn more about Ascorbyl GlucosideLecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.
This ingredient has emollient and emulsifying properties.
As an emollient, lecithen helps 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 also help ingredients be better absorbed by the skin.
This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Learn more about LecithinSclerotium Gum is a polysaccharide gum made by the fungus, Sclerotium rolfssii. It is similar to xanthan gum.
In cosmetics, Sclerotium Gum is used to thicken the texture and to help stabilize other ingredients.
As an emulsifier, Sclerotium Gum helps prevent ingredients from separating, such as water and oil.
Learn more about Sclerotium GumPullulan is a low viscosity polysaccharide (a long chain carbohydrate) with binding and film forming properties when dissolved in water. It is used to create a "silicone-like" or silky feel in cosmetics without adding viscosity.
According to a manufacturer, this ingredient's ability to easily dissolves makes it a great carrier for active ingredients.
Due to it being edible and tasteless, you'll likely find this ingredient in breath freshener strips. This ingredient is produced from the starch of the fungus, Aureobasidium pullulans.
Pullulan is stable over a broad-range of pH.
Learn more about PullulanXanthan 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 GumSilica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.
Silica is present naturally within the skin during collagen production and when reducing inflammation.
Learn more about SilicaSodium 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 CitrateCitric 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 AcidSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Theramid C-Tetra E.F. 21 ingredients
Tula Skincare Brightening Treatment Drops Triple Vitamin C Serum 38 ingredients
Reviews
Here's what our community thinks
Theramid C-Tetra E.F. 21 ingredients
feels really nice and absorbs well but didn't see any differences in my skin after going through 3 bottles
