FaceTheory PolyPep Collagen Boosting Serum S8 Versus Le Domaine The Serum

See how these products line up with your preferences

Here's our complete breakdown comparing the ingredients, attributes, and more of FaceTheory PolyPep Collagen Boosting Serum S8 versus Le Domaine The Serum .

Published on June 21, 2023

Overview

What they are

These products are both vegan, fungal acne (malassezia) safe, and reef safe serums. They have a total of 8 ingredients in common

Cool Features

They both contain hyaluronic acid

Suited For

They're both likely to be good for fighting acne, dry skin and brightening skin

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

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FaceTheory PolyPep Collagen Boosting Serum S8

Le Domaine The Serum

Serum British Brand United Kingdom

Serum French Brand France

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Price

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Buy PolyPep Collagen Boosting Serum S8

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Buy The Serum

Ingredient Info

Click any item below to learn more and view relevant ingredients.

FaceTheory PolyPep Collagen Boosting Serum S8 14 ingredients

Le Domaine The Serum 31 ingredients

alcohol-free

silicon-free

fragrance-free

sulfate-free

paraben-free

oil-free

fungal-acne safe

reef-safe

eu-allergen-free

vegan

cruelty-free

alcohol-free

silicon-free

fragrance-free

sulfate-free

paraben-free

oil-free

fungal-acne safe

reef-safe

eu-allergen-free

vegan

cruelty-free

At a glance

Click on any of the items below to learn more

FaceTheory PolyPep Collagen Boosting Serum S8 14 ingredients

Le Domaine The Serum 31 ingredients

Notable Ingredients

PHA

Hyaluronic Acid

Peptides

Benefits

Hydrating (2)

Redness Reducing (3)

Reduces Irritation (2)

Skin Texture (2)

Reduces Large Pores

Anti-Aging (2)

Acne Fighting

Brightening

Concerns

Rosacea

Eczema

Benefits

Hydrating (2)

Redness Reducing

Acne Fighting

Brightening

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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

FaceTheory PolyPep Collagen Boosting Serum S8 14 ingredients

Le Domaine The Serum 31 ingredients

Water • Propanediol • Gluconolactone • Urea • Glycerin • Chamomilla Recutita Flower Extract • Dextran • Caprooyl Tetrapeptide-3 • Sodium Phytate • Camellia Sinensis Leaf Extract • Centella Asiatica Flower/Leaf/Stem Extract • Sodium Hyaluronate • Citric Acid • Potassium Sorbate

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

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

Water

What it does: Skin Conditioning, Solvent

Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 1.

Le Domaine The Serum contains this as ingredient number 2.

Propanediol

What it does: Solvent

Community Rating: Liked

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Propanediol is not likely to cause sensitivity and considered safe to use.

It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 2.

Le Domaine The Serum contains this as ingredient number 6.

Glycerin

What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent

Community Rating: Loved

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

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 5.

Le Domaine The Serum contains this as ingredient number 3.

Chamomilla Recutita Flower Extract

What it does: Masking, Skin Conditioning

Community Rating: Liked

Chamomilla Recutita Flower Extract comes from the Chamomile flower.

Chamomile is rich in antioxidants and has anti-inflammatory properties. Several compounds found in chamomile help with soothing, such as bisbolol.

Antioxidant components in chamomile make it an effective ingredient to help slow the signs of aging. Antioxidants help fight free-radical molecules, or molecules that may damage your skin.

Essential oils from chamomile have been found to improve wound healing due to its antimicrobial properties.

Ancient Greeks and Egyptians used Chamomile to treat skin redness and dryness. Chamomile has also been used to help treat stomach issues.

Learn more about Chamomilla Recutita Flower Extract

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 6.

Le Domaine The Serum contains this as ingredient number 31.

Camellia Sinensis Leaf Extract

What it does: Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Skin Conditioning, Skin Protecting, Tonic

Community Rating: Loved

Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.

Camellia Sinensis Leaf Extract has many benefits. It contains polyphenols, a strong antioxidant. Antioxidants help fight off free-radical molecules that damage skin cells. The antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.

Many components of tea have anti-inflammatory properties. Polyphenols and L-theanine help soothe the skin and reduce irritation. L-theanine is an amino acid that makes up most of the amino acids found in tea leaves. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.

Camellia Sinensis Leaf Extract also contains Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.

Camellia Sinensis Leaf Extract also has antimicrobial properties.

Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.

Learn more about Camellia Sinensis Leaf Extract

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 10.

Le Domaine The Serum contains this as ingredient number 30.

Sodium Hyaluronate

What it does: Humectant, Skin Conditioning

Community Rating: Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 12.

Le Domaine The Serum contains this as ingredient number 26.

Citric Acid

What it does: Buffering, Masking

Community Rating: Disliked

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.

Read more about some other popular AHA's here:

Learn more about Citric Acid

FaceTheory PolyPep Collagen Boosting Serum S8 contains this as ingredient number 13.

Le Domaine The Serum contains this as ingredient number 20.

Potassium Sorbate

What it does: Preservative

Community Rating: Disliked