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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Sk-II R.N.A. POWER Anti-Aging Essence Serum versus The Ordinary "Buffet" .

Last updated on July 18, 2023. Published on February 14, 2021

Overview

What they are

These products are both serums. They have a total of 7 ingredients in common

Cool Features

They both contain peptides

Suited For

They're both likely to be good for dry skin, brightening skin and sensitive skin

Free From

They both do not contain any sulfates

What's Inside

They both contain 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 Japanese Brand Japan
Serum Canadian Brand Canada

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 R.N.A. POWER Anti-Aging Essence Serum

Starts at $199.00
Shop

Buy "Buffet"

Starts at $17.50

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

Vitamin E
Niacinamide
Peptides

Benefits

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

Concerns

Drying (3)
May Worsen Oily Skin (2)
Acne Trigger
Irritating
Rosacea (2)
Eczema (3)

Benefits

Hydrating (2)
Redness Reducing
Reduces Irritation
Skin Texture
Scar Healing
Brightening

Concerns

Drying
Acne Trigger
Rosacea (2)
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

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 1.

The Ordinary "Buffet" 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.

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 2.

The Ordinary "Buffet" contains this as ingredient number 37.

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

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 3.

The Ordinary "Buffet" contains this as ingredient number 2.

4
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.

Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.

Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.

Learn more about Pentylene Glycol

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 6.

The Ordinary "Buffet" contains this as ingredient number 38.

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.

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 18.

The Ordinary "Buffet" contains this as ingredient number 50.

6
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

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 29.

The Ordinary "Buffet" contains this as ingredient number 40.

7
What it does: Skin Conditioning
Community Rating: Mixed

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

Sk-II R.N.A. POWER Anti-Aging Essence Serum contains this as ingredient number 35.

The Ordinary "Buffet" contains this as ingredient number 49.

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

23% are loved or liked
9% have mixed ratings
39% are disliked or very disliked
30% have no rating yet
61% are loved or liked
12% have mixed ratings
22% are disliked or very disliked
6% 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

Sk-II R.N.A. POWER Anti-Aging Essence Serum 44 ingredients

R.N.A. POWER Anti-Aging Essence Serum hasn't been rated yet.
Rate it now

The Ordinary "Buffet" 51 ingredients

4.2 /5
from 5 ratings
MikaylaSmith_706's avatar

MikaylaSmith_706

8 months ago · Combination Skin
Review

Everything you need in one bottle!

matab_172's avatar

matab_172

8 months ago · Sensitive Skin
Review

Plumbed skin

Alternatives

Our Dupe Finder has found 31 potential alternatives that have similar ingredients to Sk-II R.N.A. POWER Anti-Aging Essence Serum.

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Our Dupe Finder has found 50 potential alternatives that have similar ingredients to The Ordinary "Buffet".

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