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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment versus SkinCeuticals Discoloration Defense Dark Spot Serum .

Last updated on February 16, 2024. Published on October 20, 2021

Overview

Cool Features

They both contain niacinamide

Suited For

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

Free From

They both do not contain any common allergens, oils, parabens 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.

Facial Treatment American Brand United States
Serum American Brand United States

Facial Treatment

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

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 PRO Strength Niacinamide Discoloration Treatment

Starts at $88.00
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Buy Discoloration Defense Dark Spot Serum

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

AHA
Vitamin E
Exfoliators
Niacinamide

Benefits

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

Concerns

May Worsen Oily Skin (2)
Irritating
Rosacea (2)
Eczema

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
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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

Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment contains this as ingredient number 1.

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

2
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

Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment contains this as ingredient number 2.

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

3
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

Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment contains this as ingredient number 5.

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

4
What it does: Antioxidant
Community Rating: Loved

Kojic acid comes from fungi and can also be from fermented foods.

Kojic Acid helps even out skin tone and reduce hyperpigmentation. It works by blocking tyrosine, an enzyme that starts the process of skin darkening.

Kojic Acid is antifungal and often used to treat fungal infections. Additionally, Kojic Acid can help fight bacteria with its antimicrobrial properties. A side effect may be treating acne caused by bacteria.

Kojic Acid has similar benefits to arbutin.

Learn more about Kojic Acid

Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment contains this as ingredient number 16.

SkinCeuticals Discoloration Defense Dark Spot Serum contains this as ingredient number 9.

5
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

Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment contains this as ingredient number 44.

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

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

28% are loved or liked
9% have mixed ratings
48% are disliked or very disliked
15% have no rating yet
64% are loved or liked
7% have mixed ratings
29% are disliked or very disliked
0% 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 4 potential alternatives that have similar ingredients to Peter Thomas Roth PRO Strength Niacinamide Discoloration Treatment.

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

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