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Versus

Dr. Althea Vitamin C Boosting Serum Versus 100% Pure Vitamin C Boost

Serum
Serum
Korean Brand South Korea
American Brand United States

Updated on March 25, 2025

Overview

What they are

These products are both vegan, fungal acne (malassezia) safe, and reef safe serums. They have a total of 1 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, brightening 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

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Key Ingredients

Benefits

Ingredients Side-by-side

found in both products
Vitamin C Boosting Serum

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Antioxidant, Buffering, Masking

Ascorbic 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 Acid

When to use

636 Routines
77% use in am
23% use in pm
92% use every day
When to use See routines that use it ->
12 Routines
75% use in am
25% use in pm
83% use every day

Reviews

Here's what our community thinks

Dr. Althea Vitamin C Boosting Serum 43 ingredients

3.6 /5
from 7 ratings
Hydrating (4) Light (3) Broke Me Out (3)
nozanin_786's avatar

Nozanin

3 months ago
Review

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)

#great value
#hydrating
#light
#absorbs well
2355's avatar

ɢ ꨄ

2 months ago
Review

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!

#broke me out
#irritating
#doesn't work

100% Pure Vitamin C Boost 4 ingredients

5.0 /5
from 1 rating