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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Dr Sam’s Flawless Nightly Serum versus Paula's Choice 1% Retinol Treatment US .

Last updated on March 20, 2024. Published on August 08, 2022

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 7 ingredients in common

Cool Features

They both contain retinoid

Suited For

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

Free From

They both do not contain any parabens or sulfates

What's Inside

They both contain silicones

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

Serum Irish Brand Ireland
Facial Treatment American Brand United States

Serum

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

Facial Treatment

Facial treatments are specially designed to treat a skin concern. Acne treatments and anti-aging products are common examples of facial treatments.

Price

Shop

Buy Flawless Nightly Serum

Shop

Buy 1% Retinol Treatment

Starts at $64.00

Ingredient Info

Click any item below to learn more and view relevant 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

Notable Ingredients

Retinoid
Niacinamide

Benefits

Hydrating
Good For Oily Skin (2)
Redness Reducing (3)
Reduces Irritation
Skin Texture
Reduces Large Pores (3)
Anti-Aging (2)
Dark Spots (4)
Scar Healing (3)
Acne Fighting (3)
Brightening (3)

Concerns

Drying (2)
May Worsen Oily Skin (2)
Acne Trigger
Irritating (2)
Rosacea
Eczema

Notable Ingredients

Retinoid
Vitamin C
Vitamin E
Exfoliators
Ceramides
Hyaluronic Acid
Peptides (4)

Benefits

Hydrating (3)
Good For Oily Skin
Redness Reducing (4)
Reduces Irritation (3)
Skin Texture (2)
Reduces Large Pores
Anti-Aging (3)
Dark Spots (4)
Scar Healing (2)
Acne Fighting
Brightening (4)

Concerns

Drying
Irritating
Eczema (2)
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Ingredients Compared

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

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.

1
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

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 1.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 1.

2
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 2.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 4.

3
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

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 6.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 3.

4
What it does: Skin Conditioning, Skin Protecting, Soothing
Community Rating: Loved

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

Some studies have shown this ingredient can promote wound healing with higher concentrations.

Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.

Learn more about Allantoin

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 13.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 29.

5
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 16.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 52.

6
What it does:
Community Rating: Disliked

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 18.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 34.

7
What it does:
Community Rating: Disliked

Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

Learn more about Polymethylsilsesquioxane

Dr Sam’s Flawless Nightly Serum contains this as ingredient number 20.

Paula's Choice 1% Retinol Treatment US contains this as ingredient number 15.

Here's what our community thinks of the ingredients in these two products.

45% are loved or liked
20% have mixed ratings
35% are disliked or very disliked
0% have no rating yet
32% are loved or liked
13% have mixed ratings
42% are disliked or very disliked
13% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Dr Sam’s Flawless Nightly Serum 20 ingredients

Flawless Nightly Serum hasn't been rated yet.
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Paula's Choice 1% Retinol Treatment 53 ingredients

4.5 /5
from 4 reviews
glasscasita's Avatar'
Nov 17, 2023

Love it
My favorite retinol. Been using it for a year and never had any bad reactions (be sure to follow instructions like starting slow). It's a bit pricey but worth it

Love it
My favorite retinol. Been using it for a year and never had any bad reactions (be sure to follow instructions like starting slow). It's a bit pricey but worth it

Region: US

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Our Dupe Finder has found 4 potential alternatives that have similar ingredients to Paula's Choice 1% Retinol Treatment US.

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