KORA Organics Noni Bright 12% Vitamin C Serum Versus Kiehl's Powerful-Strength Vitamin C Serum
Updated on August 30, 2023
Overview
What they are
These products are both reef safe serums. They have a total of 5 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 parabens or sulfates
What's Inside
They both contain common allergens, fragrances and oils
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
KORA Organics Noni Bright 12% Vitamin C Serum 41 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
KORA Organics Noni Bright 12% Vitamin C Serum 41 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Aloe Barbadensis Leaf Juice
Skin Conditioning
Ascorbyl Glucoside
Antioxidant
Glycerin
Humectant
Water
Skin ConditioningLactobacillus Ferment
Skin ConditioningLactobacillus/Acerola Cherry Ferment
Skin ProtectingPotassium Hydroxide
BufferingDicaprylyl Carbonate
EmollientCapsicum Annuum Fruit Extract
Antimicrobial
Lactobacillus
Skin ConditioningCitrus Limon Peel Extract
EmollientCocos Nucifera Fruit Extract
EmollientTerminalia Ferdinandiana Fruit Extract
Antioxidant
Morinda Citrifolia Fruit Extract
Skin ConditioningHydrolyzed Sodium Hyaluronate
Skin ConditioningOlea Europaea Leaf Extract
Perfuming
Zinc PCA
Humectant
Lysolecithin
EmulsifyingSclerotium Gum
Emulsion StabilisingXanthan Gum
EmulsifyingPullulan
Caprylic/Capric Triglyceride
MaskingAscorbic Acid
Antioxidant
Leuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Salvia Sclarea Extract
AntiseborrhoeicCitrus Aurantium Dulcis Peel Extract
Emulsion Stabilising
Potassium Sorbate
Preservative
Sodium Phytate
Sodium Benzoate
Masking
Citric Acid
Buffering
Sodium Salicylate
Preservative
Euterpe Oleracea Juice
Skin ConditioningTocopherol
Antioxidant
Silica
Abrasive
Maltodextrin
AbsorbentAlcohol
Antimicrobial
Glycine Soja Oil
Emollient
Quartz
Abrasive
Citral
Perfuming
Limonene
Perfuming
Linalool
Perfuming
Aloe Barbadensis Leaf Juice, Ascorbyl Glucoside, Glycerin, Water, Lactobacillus Ferment, Lactobacillus/Acerola Cherry Ferment, Potassium Hydroxide, Dicaprylyl Carbonate, Capsicum Annuum Fruit Extract, Lactobacillus, Citrus Limon Peel Extract, Cocos Nucifera Fruit Extract, Terminalia Ferdinandiana Fruit Extract, Morinda Citrifolia Fruit Extract, Hydrolyzed Sodium Hyaluronate, Olea Europaea Leaf Extract, Zinc PCA, Lysolecithin, Sclerotium Gum, Xanthan Gum, Pullulan, Caprylic/Capric Triglyceride, Ascorbic Acid, Leuconostoc/Radish Root Ferment Filtrate, Salvia Sclarea Extract, Citrus Aurantium Dulcis Peel Extract, Potassium Sorbate, Sodium Phytate, Sodium Benzoate, Citric Acid, Sodium Salicylate, Euterpe Oleracea Juice, Tocopherol, Silica, Maltodextrin, Alcohol, Glycine Soja Oil, Quartz, Citral, Limonene, Linalool
Propylene Glycol
Humectant
Dimethicone
Emollient
Glycerin
Humectant
Ascorbic Acid
Antioxidant
Ethylhexyl Palmitate
Emollient
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Dimethicone Crosspolymer
Emulsion StabilisingAscorbyl Glucoside
Antioxidant
Cyclohexasiloxane
Emollient
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingLauroyl Lysine
Skin ConditioningAcrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer
Polysilicone-11
Adenosine
Skin Conditioning
Hydrolyzed Hyaluronic Acid
Humectant
Limonene
Perfuming
Isobutane
Citrus Aurantium Dulcis Peel Oil
Masking
Citrus Limon Peel Oil
Masking
Citral
Perfuming
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Ethylhexyl Palmitate, Cetyl PEG/PPG-10/1 Dimethicone, Dimethicone Crosspolymer, Ascorbyl Glucoside, Cyclohexasiloxane, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer, Polysilicone-11, Adenosine, Hydrolyzed Hyaluronic Acid, Limonene, Isobutane, Citrus Aurantium Dulcis Peel Oil, Citrus Limon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ascorbyl 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 GlucosideGlycerin 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 GlycerinAscorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.
Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.
Remember: Vitamin C should not replace sunscreen!
Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.
Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.
The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.
Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.
Read more about other types of Vitamin C:
Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
Learn more about Ascorbic AcidCitral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.
The EU mandates Citral be listed separately as a fragrance. It is a known allergen and may cause contact dermatitis. Citral can also used as a masking ingredient.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
The term 'citral' is a collective term for two geometric isomers: geranial/Citral A and neral/Citral B.
Learn more about CitralLimonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about LimoneneIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
KORA Organics Noni Bright 12% Vitamin C Serum 41 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Reviews
Here's what our community thinks
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Actually noticed a difference in my fine lines with this product. The bottle also lasted me over a year with almost daily use.
