Versus

Good (Skin) Days C’s The Day Serum Versus Youth To The People 15% Vitamin C + Clean Caffeine Energy Serum

Serum
Serum
Korean Brand South Korea
American Brand United States

Updated on September 18, 2023

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 exfoliants and Vitamin C

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing and better texture

Free From

They both do not contain any harsh alcohols, common allergens, 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

Concerns

Ingredients Side-by-side

found in both products
C’s The Day Serum
15% Vitamin C + Clean Caffeine Energy Serum

Ingredients Explained

These ingredients are found in both products.

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

Skin Conditioning, Solvent

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 Water
Humectant, Skin Conditioning, Skin Protecting

Glycerin 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 Glycerin
Antioxidant, Skin Conditioning

Magnesium Ascorbyl Phosphate (MAP) is a form of Vitamin C and is an antioxidant. It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.

MAP is created by combining ascorbic acid with magnesium salt. While MAP more gentle on the skin than ascorbic acid, it is thought to be less easily-absorbed into the skin.

Due to MAP's stability up to a pH level of 7, it is more stable to air and sunlight exposure than ascorbic acid. The best pH range for MAP is between 5 and 6.

Like other forms of Vitamin C, MAP has been shown to help reduce hyperpigmentation and simulate collagen production.

As an antioxidant, it helps protect your skin against the signs of aging.

Learn more about Magnesium Ascorbyl Phosphate
Emulsifying, Emulsion Stabilising, Gel Forming

Xanthan 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 Gum

When to use

12 Routines
75% use in am
25% use in pm
100% use every day
121 Routines
94% use in am
6% use in pm
89% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Good (Skin) Days C’s The Day Serum 28 ingredients

C’s The Day Serum hasn't been rated yet.
Rate it now

Youth To The People 15% Vitamin C + Clean Caffeine Energy Serum 34 ingredients

3.0 /5
from 3 ratings
Irritating (1)
sarahabma's avatar

sarahabma

2 years ago
Review

Most effective vitamin C
This is the product I let myself splurge on because I haven't found anything that compares so far. This is so fast-acting for lightening my dark spots/acne scars. I use one pump on the whole face, once a day in the AM so the bottle tends to last me about 3 months. Highly, highly recommend for dark spots!

chlolands's avatar

chlolands

1 year ago
Review

Did nothing for my dark spots, instead destroyed my skin barrier.

#irritating