Versus

Theramid C-Tetra E.F. Versus Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum

Serum
Serum
Spanish Brand Spain
American Brand United States

Updated on August 07, 2024

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 2 ingredients in common

Cool Features

They both contain Vitamin C and Vitamin E

Suited For

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

Free From

They both do not contain any 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

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

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products

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
Antimicrobial, Antioxidant

Ferulic Acid is a plant based antioxidant. By fighting free-radicals, ferulic acid can help reduce the formation of fine lines and hyperpigmentation.

When used with Vitamin C, Ferulic Acid has shown to prevent Vitamin C from breaking down. In other words, it acts as a stabilizer.

Ferulic Acid is sometimes used to preserve food. Foods containing Ferulic Acid include: oats, rice, eggplant, citrus.

In medicine, Ferulic Acid is being studied for helping with diabetes, Alzheimer's, and cardiovascular diseases.

Learn more about Ferulic Acid

When to use

33 Routines
97% use in am
3% use in pm
85% use every day
When to use See routines that use it ->
562 Routines
94% use in am
10% use in pm
96% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Theramid C-Tetra E.F. 21 ingredients

2.0 /5
from 1 rating
Absorbs Well (1) Doesn't Work (1) Expensive (1)
rodney's avatar

rodney

1 year ago
Review

feels really nice and absorbs well but didn't see any differences in my skin after going through 3 bottles

#expensive
#hydrating
#light
#absorbs well

Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum 11 ingredients

4.2 /5
from 6 ratings
Light (4) Works Well (3) Great Value (2)
DamDamfino's avatar

DamDamfino

1 year ago
Review

I've tried about 5 different Vitamin C serums, and this one is by far my favorite. I've purchased it 3 times. (I started using it back when it was the dropper bottle)

My skin can tolerate higher Vit C percentages very well, so this feels like nothing on my skin. As if I was putting on water. I don't mind the ferulic acid smell (which is noticeably less now than it used to be!), because I think Show more

#light
#works well
AndrenaDurandoBalsells's avatar

AndrenaDurandoBalsells

12 months ago
Review

Too irritating for my sensitive skin but great product if you skin does tolerate it

#drying
#irritating
#light
#sticky