Tree to Tub Triple Vitamin C Ultra Brightening 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 4 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, reducing pores, scar healing 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
Tree to Tub Triple Vitamin C Ultra Brightening Serum 8 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
Tree to Tub Triple Vitamin C Ultra Brightening Serum 8 ingredients
Numbuzin No.5 Vitamin Concentrated Serum 47 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
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 GlucosideEthylhexylglycerin (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.
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 WaterXanthan 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 GumIngredient Ratings
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When to use
Tree to Tub Triple Vitamin C Ultra Brightening Serum 8 ingredients
Numbuzin No.5 Vitamin Concentrated Serum 47 ingredients

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Tree to Tub Triple Vitamin C Ultra Brightening Serum 8 ingredients
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