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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) versus Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) .

Last updated on November 16, 2023. Published on March 07, 2021

Overview

What they are

These products are both reef safe . They have a total of 6 ingredients in common

Cool Features

They both contain niacinamide

Suited For

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

Free From

They both do not contain any harsh alcohols, 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.

Serum American Brand United States
Prescription 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.

Prescription

Prescription skincare treatments. The ingredients in these product are prescription strength and considered medication. In many countries, these must be prescribed by a certified professional.

Price

Shop

Buy Regenerist Collagen Peptide 24 Serum (Fragrance Free)

Starts at $14.00
Shop

Buy Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%)

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
Peptides

Benefits

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

Concerns

May Worsen Oily Skin (2)

Notable Ingredients

Vitamin E
Niacinamide

Benefits

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

Concerns

May Worsen Oily Skin
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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

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 1.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 7.

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

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 3.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 1.

3
What it does: Emollient, Solvent
Community Rating: Very Disliked

C13-14 Isoparaffin is created from petroleum-based mineral oils. It is an emollient and helps thicken a product.

As an emollient, it helps keep the skin soft and smooth by creating a barrier on top. This barrier traps moisture in, keeping the skin hydrated.

C13-14 Isoparaffin may not be fungal-acne safe.

Learn more about C13-14 Isoparaffin

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 9.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 5.

4
What it does: Emulsifying
Community Rating: Very Disliked

Laureth-7 is created by the ethoxylation of lauryl alcohol using ethylene oxide. Lauryl alcohol is a fatty alcohol with hydrating properties.

Laureth-7 is an emulsifier and cleansing ingredient. As an emulsifier, it is used to prevent ingredients from separating. It also helps cleanse the skin by gathering dirt, oil, and pollutants to be rinsed away.

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 12.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 8.

5
What it does:
Community Rating: Disliked

Polyacrylamide is a synthetic polymer. It is used to stabilize products and bind ingredients. When hydrated, Polyacrylamide forms a soft gel.

Polyacrylamide is low-toxicity. If source properly, it is deemed safe to use in cosmetics.

It should be noted the precursor to Polyacrylamide is acrylamide. Acrylamide is a carcinogen. Most reputable sources of Polyacrylamide will screen for residual acrylamide to make sure the count is in a safe range. Acrylamide is not able to be absorbed through the skin.

We recommend speaking with a professional if you have concerns.

Learn more about Polyacrylamide

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 14.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 11.

6
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.

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) contains this as ingredient number 16.

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) contains this as ingredient number 10.

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

44% are loved or liked
0% have mixed ratings
50% are disliked or very disliked
6% have no rating yet
54% are loved or liked
8% have mixed ratings
31% are disliked or very disliked
8% 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

Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free) 16 ingredients

Regenerist Collagen Peptide 24 Serum (Fragrance Free) hasn't been rated yet.
Rate it now

Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%) 13 ingredients

5.0 /5
from 2 ratings
USAFGal09's avatar

USAFGal09

1 year ago · Oily Skin
Review

HOLY GRAIL PRODUCT
The title says it all; this is the one skincare product that I can 110% tell you has made a difference in my skin. I started...

HOLY GRAIL PRODUCT
The title says it all; this is the one skincare product that I can 110% tell you has made a difference in my skin. I started using it in 2012 and every time I've stopped, I notice the difference. And yes, the difference is visual! I love that it's tailored to you makes it worth the money.

ttayitsmylife's avatar

ttayitsmylife

1 year ago · Combination Skin
Review

Because it has Tret in it.

Alternatives

Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Olay Regenerist Collagen Peptide 24 Serum (Fragrance Free).

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We haven't detected any alternatives for Curology Custom Serum (Niacinamide 4%, Clindamycin 1%, Azelaic 4%).

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