Versus

PCA Skin Exlinea Peptide Smoothing Serum Versus iNNBEAUTY PROJECT Elastic Skin Firming & Plumping Serum

Serum
Serum
American Brand United States
American Brand United States

Updated on June 30, 2024

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 7 ingredients in common

Cool Features

They both contain hyaluronic acid, peptides and Vitamin E

Suited For

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

Free From

They both do not contain any harsh alcohols, parabens, silicones or 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 needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Elastic Skin Firming & Plumping Serum

Water

Skin Conditioning

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Diheptyl Succinate

Emollient

Pentylene Glycol

Skin Conditioning

1,2-Hexanediol

Skin Conditioning
Helps hydrate Dry Skin Icon

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Dioscorea Villosa Root Extract

Skin Conditioning

Copper Tripeptide-1

Skin Conditioning
Peptide IconHelps hydrate Dry Skin IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Scar Healing Icon

Oligopeptide-1

Skin Conditioning
Peptide Icon

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-76

Skin Conditioning
Peptide Icon

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-47

Skin Conditioning
Peptide Icon

Acetyl Sh-Hexapeptide-5 Amide Acetate

Skin Conditioning
Peptide Icon

Ceramide NP

Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Centella Asiatica Extract

Cleansing
Helps reduce Skin Redness IconHelps reduce irritation IconHelps with Anti-Aging Icon

Beta-Glucan

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconHelps with Anti-Aging IconGood for Scar Healing Icon

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

Haematococcus Pluvialis Extract

Antioxidant
Antioxidant Icon

Sodium PCA

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon

Ananas Sativus Fruit Extract

Skin Conditioning

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Allantoin

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Betaine

Humectant
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots Icon

Bisabolol

Masking
Helps reduce Skin Redness IconHelps reduce irritation IconGood for Dark Spots Icon

Zinc PCA

Humectant
Good for Oily Skin IconHelps reduce Skin Redness IconGood for Scar Healing IconHelps fight Acne Icon

C12-20 Alkyl Glucoside

Emulsifying

C14-22 Alcohols

Emulsion Stabilising

Sodium Polyacrylate

Absorbent
Helps hydrate Dry Skin Icon

Capryloyl Glycerin/Sebacic Acid Copolymer

Skin Conditioning

Carbomer

Emulsion Stabilising
1 / 0

Sorbitan Olivate

Emulsifying
Not safe for Fungal Acne Icon

Cellulose Gum

Emulsion Stabilising
0 / 0

Hydrogenated Lecithin

Emulsifying
Helps hydrate Dry Skin Icon

Cetearyl Olivate

Not safe for Fungal Acne Icon

Mannitol

Humectant
Helps hydrate Dry Skin Icon

Phosphatidylcholine

Emulsifying

Cetyl Alcohol

Emollient
2 / 2 Fatty Alcohol Icon

Decyl Glucoside

Cleansing

Dipotassium Phosphate

Buffering

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Sodium Chloride

Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon

Sodium Hydroxide

Buffering

Sodium Phytate

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Xanthan Gum

Emulsifying

Potassium Phosphate

Buffering

Potassium Sorbate

Preservative
Preservative Icon

Sodium Benzoate

Masking
Preservative Icon

Phenoxyethanol

Preservative
Preservative Icon

Ethylhexylglycerin

Skin Conditioning

Hydroxyacetophenone

Antioxidant
Antioxidant IconHelps reduce irritation Icon

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

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. If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
Masking, Preservative

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Learn more about Sodium Benzoate
Skin Conditioning, Solvent

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. 

It is a:

  • Humectant, drawing moisture into the skin
  • Emollient, helping to soften skin
  • Solvent, dispersing and stabilizing formulas
  • Preservative booster, enhancing the antimicrobial activity of other preservatives 
Preservative

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.

Humectant, Skin Conditioning

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate
Preservative

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.

You'll often find this ingredient used with other preservatives.

Learn more about Potassium Sorbate
Antioxidant, Masking, Skin Conditioning

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Learn more about Tocopherol

When to use

2 Routines
50% use in am
50% use in pm
100% use every day
53 Routines
57% use in am
43% use in pm
91% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

PCA Skin Exlinea Peptide Smoothing Serum 25 ingredients

Exlinea Peptide Smoothing Serum hasn't been rated yet.
Rate it now

iNNBEAUTY PROJECT Elastic Skin Firming & Plumping Serum 54 ingredients

5.0 /5
from 1 rating
Hydrating (1) Pilling (1) Works Well (1)
PNW1996's avatar

M X

3 months ago
Review

Highly effective hydrating encapsulated peptide product with anti oxidant and anti inflammatory power for a low price.

The Nicotiana peptides in this formula are growth factors and signaling peptides. This means they stimulate protein synthesis, the production of epidermal lipids, and collagen production. These peptides are also said to have an retinoid like efficacy for collagen production. Show more

#hydrating
#pilling
#works well