Nature Republic Vitapair C Dark Spot Serum 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 15 ingredients in common
Cool Features
They both contain niacinamide, Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, 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, 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
Nature Republic Vitapair C Dark Spot Serum 29 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
Nature Republic Vitapair C Dark Spot Serum 29 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Citrus Limon Fruit Extract
Masking
Niacinamide
Smoothing
Tranexamic Acid
Astringent
Ethoxydiglycol
HumectantPropanediol
Solvent1,2-Hexanediol
Skin ConditioningDipropylene Glycol
MaskingCentella Asiatica Extract
Cleansing
Melia Azadirachta Flower Extract
Skin ConditioningMelia Azadirachta Leaf Extract
Skin ConditioningCurcuma Longa Root Extract
Masking
Ocimum Sanctum Leaf Extract
Skin ConditioningCorallina Officinalis Extract
Skin ConditioningWater
Skin ConditioningCholeth-24
EmulsifyingButylene Glycol
Humectant
Caprylyl Glycol
EmollientSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingTromethamine
BufferingEthylhexylglycerin
Skin ConditioningPanthenol
Skin Conditioning
Dipotassium Glycyrrhizate
Humectant
Ascorbic Acid
Antioxidant
Ascorbyl Glucoside
Antioxidant
Glutathione
Tocopherol
Antioxidant
Carbomer
Emulsion StabilisingDisodium EDTA
Parfum
Masking
Citrus Limon Fruit Extract, Niacinamide, Tranexamic Acid, Ethoxydiglycol, Propanediol, 1,2-Hexanediol, Dipropylene Glycol, Centella Asiatica Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Curcuma Longa Root Extract, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Water, Choleth-24, Butylene Glycol, Caprylyl Glycol, Sodium Polyacryloyldimethyl Taurate, Tromethamine, Ethylhexylglycerin, Panthenol, Dipotassium Glycyrrhizate, Ascorbic Acid, Ascorbyl Glucoside, Glutathione, Tocopherol, Carbomer, Disodium EDTA, Parfum
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.
Niacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamideTranexamic Acid is best used for treating hyperpigmentation, discoloration, and melasma. It can also help build a stronger skin barrier.
Once applied, Tranexamic Acid starts decreasing inflammation from UV exposure. Tranexamic Acid also prevents our skin cells from meeting the pigment production cells.
Its brightening property makes it great at reducing the appearance of acne scars and marks.
Fun fact: Tranexamic Acid is also a medication used to reduce heavy bleeding.
This acid is derived from lysine, an amino acid.
Learn more about Tranexamic AcidPropanediol 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 Propanediol1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.
Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.
As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.
Studies show Dipropylene Glycol is considered safe to use in skincare.
Learn more about Dipropylene GlycolCentella Asiatica Extract (Centella) is derived from an herb native to Southeast Asia. It is famous for its anti-inflammatory and soothing properties.
Centella is rich in antioxidants and amino acids, such as Madecassic Acid and Asiaticoside.
Studies show the compounds in centella help with:
The combination of all these properties makes centella effective at soothing, hydrating, and protecting the skin.
Other great components of centella include Vitamin A, vitamin C, several B vitamins, and Asiatic Acid.
Fun fact: Centella has been used as a medicine and in food for many centuries. As a medicine, it is used to treat burns, scratches, and wounds.
Learn more about Centella Asiatica ExtractWater. 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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Tromethamine helps balance the pH and improve the texture of a product. It is synthetically created.
As an emulsifier, Tromethamine prevents oil and water ingredients from separating. This helps stabilize the product and elongate a product's shelf life. Tromethamine also makes a product thicker.
Tromethamine helps balance the pH level of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. 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.
Oral Tromethanmine is an anti-inflammatory drug but plays the role of masking, adding fragrance, and/or balancing pH in skincare.
1,3-Propanediol, 2-amino-2-(hydroxymethyl)-
Learn more about TromethamineEthylhexylglycerin (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.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolAscorbic 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 AcidTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolCarbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
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 EDTAIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Nature Republic Vitapair C Dark Spot Serum 29 ingredients
Dr. Althea Vitamin C Boosting Serum 43 ingredients
Reviews
Here's what our community thinks
Nature Republic Vitapair C Dark Spot Serum 29 ingredients
In the long term, it has actually made a difference about my dark spots, but the ingredients confuse me a little: It has a very high concentration of Lemon Extract (around 80%) but in the other hand this ingredient is way less effective than Vitamin-C itself, which also appears in the formula, but so down in the list that I really doubt it's above a 1%. I think Niacinamide (4%) and Tranexamic Acid Show more
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!
