ClarityRx C-Results Vitamin C Serum Versus Numbuzin No.5 Vitamin Concentrated Serum
Updated on April 08, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening 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 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
ClarityRx C-Results Vitamin C Serum 19 ingredients
Numbuzin No.5 Vitamin Concentrated Serum 47 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
ClarityRx C-Results Vitamin C Serum 19 ingredients
Numbuzin No.5 Vitamin Concentrated Serum 47 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Methyl Trimethicone
Skin Conditioning
Tetrahexyldecyl Ascorbate
Antioxidant
Cyclopentasiloxane
Emollient
Trimethylsiloxysilicate
Emollient
Ascorbic Acid
Antioxidant
Ascorbic Acid/Orange/Citrus Limon/Citrus Aurantifolia Polypeptides
Skin Conditioning
Ascorbyl Glucoside
Antioxidant
Mixed Terpenes
SolventAscorbyl Palmitate
Antioxidant
Phyllanthus Emblica Fruit Extract
HumectantArctostaphylos Uva Ursi Leaf Extract
Skin Conditioning
Alpha-Arbutin
Antioxidant
Superoxide Dismutase
Antioxidant
Tocopheryl Acetate
Antioxidant
Ubiquinone
Antioxidant
Retinyl Palmitate
Skin Conditioning
Phospholipids
Skin Conditioning
Water
Skin ConditioningPhenoxyethanol
Preservative
Methyl Trimethicone, Tetrahexyldecyl Ascorbate, Cyclopentasiloxane, Trimethylsiloxysilicate, Ascorbic Acid, Ascorbic Acid/Orange/Citrus Limon/Citrus Aurantifolia Polypeptides, Ascorbyl Glucoside, Mixed Terpenes, Ascorbyl Palmitate, Phyllanthus Emblica Fruit Extract, Arctostaphylos Uva Ursi Leaf Extract, Alpha-Arbutin, Superoxide Dismutase, Tocopheryl Acetate, Ubiquinone, Retinyl Palmitate, Phospholipids, Water, Phenoxyethanol
Water
Skin ConditioningButylene Glycol
Humectant
Niacinamide
Smoothing
Panthenol
Skin Conditioning
Tranexamic Acid
Astringent
1,2-Hexanediol
Skin Conditioning
Neopentyl Glycol Dicaprate
EmollientCaprylic/Capric Triglyceride
Masking
Sorbitol
Humectant
Vaccinium Macrocarpon Fruit Extract
AstringentChondrus Crispus Extract
Skin Conditioning
Butyrospermum Parkii Butter
Skin Conditioning
Saccharum Officinarum Extract
MoisturisingAlpha-Arbutin
Antioxidant
Bifida Ferment Lysate
Skin Conditioning
Sodium Hyaluronate
Humectant
Azadirachta Indica Leaf Extract
Skin ConditioningOcimum Sanctum Leaf Extract
Skin Conditioning
Melaleuca Alternifolia Leaf Extract
Perfuming
Curcuma Longa Root Extract
Masking
Charcoal Extract
Skin ConditioningWool Extract
Skin ConditioningPentylene Glycol
Skin ConditioningGlycerin
Humectant
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Bisabolol
Masking
Tromethamine
BufferingEthylhexylglycerin
Skin ConditioningAdenosine
Skin Conditioning
Hydrogenated Lecithin
Emulsifying
Allantoin
Skin Conditioning
Glutathione
Ceramide NP
Skin Conditioning
Beta-Glucan
Skin Conditioning
Dipotassium Glycyrrhizate
Humectant
Tocopherol
Antioxidant
Ascorbic Acid
Antioxidant
Ascorbyl Glucoside
Antioxidant
Tocopheryl Acetate
Antioxidant
Hydroxypropyl Cyclodextrin
MaskingUbiquinone
Antioxidant
Thioctic Acid
Antioxidant
Potassium Hydroxide
BufferingBehenyl Alcohol
Emollient
Carbomer
Emulsion StabilisingXanthan Gum
EmulsifyingDisodium EDTA
Water, Butylene Glycol, Niacinamide, Panthenol, Tranexamic Acid, 1,2-Hexanediol, Neopentyl Glycol Dicaprate, Caprylic/Capric Triglyceride, Sorbitol, Vaccinium Macrocarpon Fruit Extract, Chondrus Crispus Extract, Butyrospermum Parkii Butter, Saccharum Officinarum Extract, Alpha-Arbutin, Bifida Ferment Lysate, Sodium Hyaluronate, Azadirachta Indica Leaf Extract, Ocimum Sanctum Leaf Extract, Melaleuca Alternifolia Leaf Extract, Curcuma Longa Root Extract, Charcoal Extract, Wool Extract, Pentylene Glycol, Glycerin, 3-O-Ethyl Ascorbic Acid, Bisabolol, Tromethamine, Ethylhexylglycerin, Adenosine, Hydrogenated Lecithin, Allantoin, Glutathione, Ceramide NP, Beta-Glucan, Dipotassium Glycyrrhizate, Tocopherol, Ascorbic Acid, Ascorbyl Glucoside, Tocopheryl Acetate, Hydroxypropyl Cyclodextrin, Ubiquinone, Thioctic Acid, Potassium Hydroxide, Behenyl Alcohol, Carbomer, Xanthan Gum, Disodium EDTA
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Alpha-Arbutin is made from hydroquinone and glucose. It may also be derived from the fermentation of soybeans.
This ingredient an antioxidant, meaning it helps protect your skin cells against damage.
Studies show this ingredient helps improve hyperpigmentation and fade discoloration.
Alpha-Arbutin may be used with other ingredients that help with hyperpigmentation. These ingredients include retinol, Vitamin C, niacinamide, and tranexamic acid.
Learn more about Alpha-ArbutinAscorbic 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 AcidAscorbyl 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 GlucosideTocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateUbiquinone (Coenzyme Q10) is a molecule already found in our bodies. It is a potent antioxidant and skin-soothing ingredient.
Aging and environmental exposure diminishes our skin's natural ubiquinone levels. This is much like our natural collagen and elastin.
The good news is: studies show applying this ingredient topically replenishes ubiquinone levels in our skin. This also comes with a ton of skin benefits. These benefits include:
Ubiquinone is considered a large molecule and cannot be absorbed into the lower layers of skin. This is why it is believed to be such an effective antioxidant: it protects our skin in the upper layers and prevents damage in the deeper layers.
When used in sunscreen, ubiquinone is shown to increase ingredient stability, increase SPF factor, and add to infrared protection.
Fun fact: ubiquinone is fat-soluble.
Learn more about UbiquinoneWater. 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
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When to use
ClarityRx C-Results Vitamin C Serum 19 ingredients
Numbuzin No.5 Vitamin Concentrated Serum 47 ingredients
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