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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Differin Dark Spot Correcting Serum 2% Hydroquinone versus Murad Rapid Age Spot and Pigment Lightening Serum .

Last updated on November 18, 2023. Published on March 14, 2021

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 AHA

Suited For

They're both likely to be good for brightening skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any parabens, silicones or sulfates

What's Inside

They both contain harsh alcohols, fragrances and oils

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 Dark Spot Correcting Serum 2% Hydroquinone

Starts at $22.99
Shop

Buy Rapid Age Spot and Pigment Lightening Serum

Starts at $22.00

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

AHA

Benefits

Skin Texture
Reduces Large Pores
Dark Spots
Scar Healing
Brightening

Concerns

Drying
May Worsen Oily Skin
Irritating (2)
Rosacea (4)
Eczema (2)

Notable Ingredients

AHA
Vitamin C (2)
Vitamin E
Peptides

Benefits

Hydrating (4)
Good For Oily Skin
Redness Reducing (6)
Reduces Irritation (4)
Skin Texture (4)
Reduces Large Pores
Anti-Aging (4)
Dark Spots (4)
Scar Healing (4)
Brightening (5)

Concerns

Drying
May Worsen Oily Skin
Irritating (3)
Rosacea (4)
Eczema (3)
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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: Antimicrobial, Astringent, Masking, Solvent
Community Rating: Very Disliked

Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol and other additives. It has a low molecular weight and will evaporate quickly. This helps other ingredients become better absorbed and dry once applied.

Alcohol Denat. is volatile and may cause irritation. It helps draw out natural oils in skin and dry out your skin.

One study from 2005 found adding emollients to propanol-based sanitizer decreased irritation.

Alcohol is antibacterial by nature. This can help preserve products and increase their shelf life.

Other types of astringent alcohols include:

Learn more about Alcohol Denat.

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 3.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 2.

2
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

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 6.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 37.

3
What it does: Masking, Perfuming
Community Rating: Very Disliked

Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.

In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Products use parfum often to give products a scent or cover up smells of different ingredients.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 7.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 40.

4
What it does: Emulsion Stabilising, Stabilising
Community Rating: Mixed

Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.

Hydroxyethylcellulose helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.

This ingredient can also be found in pill medicines to help our bodies digest other ingredients.

Learn more about Hydroxyethylcellulose

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 9.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 36.

5
What it does: Emulsifying
Community Rating: Very Disliked

Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.

As an emulsifier, it helps prevent ingredients from separating. It also helps make the other ingredients more soluble; it is often used to solubilize fragrances. This increases spreadability and elongates shelf life in a product.

Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.

This ingredient may or may not be vegan, depending on the source.

Peg-40 Hydrogenated Castor Oil may not be fungal-acne safe. We recommend speaking with a professional if you have any questions or concerns.

Learn more about Peg-40 Hydrogenated Castor Oil

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 10.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 35.

6
What it does: Antioxidant, Preservative
Community Rating: Mixed

Sodium Metabisulfite is an antioxidant and is a preservative.

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 12.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 31.

7
What it does: Preservative
Community Rating: Very Disliked

Sodium Sulfite is a preservative. Preservatives help prevent mold and bacteria from growing in cosmetics.

This ingredient has been shown to break the bonds in hair, acting as a natural straightener.

It is commonly used in food. It should be noted sodium sulfite degrades both vitamins B1 and E.

Fun fact: Sulfites are naturally occuring in wine.

Learn more about Sodium Sulfite

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 13.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 32.

8
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

Differin Dark Spot Correcting Serum 2% Hydroquinone contains this as ingredient number 14.

Murad Rapid Age Spot and Pigment Lightening Serum contains this as ingredient number 1.

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

21% are loved or liked
29% have mixed ratings
50% are disliked or very disliked
0% have no rating yet
43% are loved or liked
10% have mixed ratings
30% are disliked or very disliked
18% 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 16 potential alternatives that have similar ingredients to Differin Dark Spot Correcting Serum 2% Hydroquinone.

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Our Dupe Finder has found 4 potential alternatives that have similar ingredients to Murad Rapid Age Spot and Pigment Lightening Serum.

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