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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of SkinCeuticals Discoloration Defense Dark Spot Serum versus Paula's Choice Discoloration Repair Serum .

Last updated on February 16, 2024. Published on March 27, 2022

Overview

What they are

These products are both reef safe serums. They have a total of 8 ingredients in common

Cool Features

They both contain niacinamide

Suited For

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

Free From

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

Serum American Brand United States
Serum 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.

Serum

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

Price

Shop

Buy Discoloration Defense Dark Spot Serum

Shop

Buy Discoloration Repair Serum

Starts at $52.00

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

Niacinamide

Benefits

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

Concerns

Eczema

Notable Ingredients

AHA
Vitamin E
Niacinamide

Benefits

Hydrating (2)
Good For Oily Skin
Redness Reducing (2)
Reduces Irritation (2)
Reduces Large Pores
Anti-Aging (2)
Dark Spots (3)
Scar Healing (2)
Acne Fighting
Brightening (5)

Concerns

Irritating
Rosacea
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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

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 1.

Paula's Choice Discoloration Repair Serum 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.

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 2.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 11.

3
What it does: Smoothing
Community Rating: Loved

Niacinamide has emerged as an all-star ingredient due to its many benefits.

It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.

Other benefits include smoothing wrinkles and minimizing redness.

The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.

Learn more about Niacinamide

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 3.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 2.

4
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

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 5.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 3.

5
What it does: Astringent, Skin Conditioning
Community Rating: Loved

Tranexamic Acid is best used for treating hyperpigmentation, discoloration, and melasma. It can also help build a stronger skin barrier.

Once applied, Tranexamic Acid starts decreasing inflammation from UV exposure. Tranexamic Acid also prevents our skin cells from meeting the pigment production cells.

Fun fact: Tranexamic Acid is also a medication used to reduce heavy bleeding.

This acid is derived from lysine, an amino acid.

Learn more about Tranexamic Acid

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 6.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 4.

6
What it does: Emollient, Humectant, Skin Conditioning
Community Rating: Liked

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.

Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.

This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.

Learn more about Caprylyl Glycol

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 10.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 18.

7
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

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 11.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 20.

8
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

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

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 13.

Paula's Choice Discoloration Repair Serum contains this as ingredient number 17.

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

64% are loved or liked
7% have mixed ratings
29% are disliked or very disliked
0% have no rating yet
41% are loved or liked
17% have mixed ratings
31% are disliked or very disliked
10% 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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Alternatives

Our Dupe Finder has found 50 potential alternatives that have similar ingredients to SkinCeuticals Discoloration Defense Dark Spot Serum.

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Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Paula's Choice Discoloration Repair Serum.

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