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Medik8 C-Tetra Lipid Vitamin C Serum Versus The Ordinary Soothing & Barrier Support Serum

Serum
Serum
British Brand United Kingdom
Canadian Brand Canada

Updated on June 13, 2024

Overview

What they are

These products are both vegan, cruelty-free, and reef safe serums. They have a total of 0 ingredients in common

Cool Features

They both contain Vitamin E

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin and dark spots

Free From

They both do not contain any parabens or sulfates

What's Inside

They both contain common allergens and fragrances

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
ph level
5.75

At a glance

Click on any of the items below to learn more

Notable Ingredients

Benefits

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
C-Tetra Lipid Vitamin C Serum
Simmondsia Chinensis Seed Oil Emollient, Skin Conditioning
0-2 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon
OilOil Icon Helps hydrate Dry SkinHelps hydrate Dry Skin Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

This ingredient is the fixed oil extracted from seeds of the desert shrub Jojoba. It is more commonly known as jojoba oil. The seed oil is liquid wax ester from the plant. It is non-comedogenic.

0-2 Com. / 0 Irr.
Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked Full details ->
Cyclohexasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclohexasiloxane is a type of silicone more commonly known as D6. It is an emollient and solvent.

Disliked Full details ->
Ascorbyl Tetraisopalmitate Antioxidant, Emollient, Skin Conditioning
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconNot safe for Fungal Acne Icon
Vitamin CVitamin C Icon AntioxidantAntioxidant Icon 4 Benefits Not safe for Fungal AcneNot safe for Fungal Acne Icon

Ascorbyl Tetraisopalmitate is a version of ascorbic acid, or pure Vitamin C.

Citrus Grandis Peel Oil Masking, Perfuming, Skin Conditioning
Fragrance IconOil Icon
FragranceFragrance Icon OilOil Icon

Citrus Grandis Peel Oil is an essential oil that is derived from the peel of a Grapefruit. It is composed largely of limonene, which is a fragrance that can cause irritation for sensitive skin.

Unknown Full details ->
Tocopheryl Acetate Antioxidant, Skin Conditioning
0 / 0 Vitamin E IconAntioxidant IconHelps brighten skin Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon Helps brighten skinHelps brighten skin Icon

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

0 Com. / 0 Irr.
Ppg-12/Smdi Copolymer Emollient, Skin Conditioning

We don't have a description for Ppg-12/Smdi Copolymer.

Unknown Full details ->
Limonene Perfuming, Solvent
Fragrance Icon
FragranceFragrance Icon

Limonene is a fragrance that adds scent and taste to a formulation.

Very Disliked Full details ->
Citral Perfuming
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.

Unknown Full details ->
Linalool Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon
FragranceFragrance Icon 2 Concerns

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Very Disliked Full details ->
Geraniol Perfuming, Tonic
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Geraniol is used to add fragrance/parfum to a product. It is the main component of citronellol. It is a monoterpenoid and an alcohol.

Very Disliked Full details ->
Soothing & Barrier Support Serum
Water 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.

Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Isodecyl Neopentanoate Emollient, Skin Conditioning

We don't have a description for Isodecyl Neopentanoate.

Unknown Full details ->
Pentylene Glycol Skin Conditioning, Solvent

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.

Niacinamide Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconGood for Minimizing Pores IconGood for Dark Spots IconHelps fight Acne IconHelps brighten skin Icon
NiacinamideNiacinamide Icon 6 Benefits

Niacinamide has emerged as an all-star ingredient due to its many benefits.

Hexyldecanol Emollient, Skin Conditioning

We don't have a description for Hexyldecanol.

Unknown Full details ->
Cetearyl Alcohol Emollient, Emulsifying, Emulsion Stabilising
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon
Fatty AlcoholFatty Alcohol Icon 3 Concerns

Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.

2 Com. / 1 Irr.
Very Disliked Full details ->
Xylitylglucoside Humectant, Skin Conditioning

Xylitylglucoside is created from xylitol and glucose, two humectants.

Ceteth-20 Phosphate Cleansing

We don't have a description for Ceteth-20 Phosphate.

Unknown Full details ->
Anhydroxylitol Humectant, Skin Conditioning

This ingredient is created from dehydrating xylitol in acidic conditions. Xylitol is a famous sugar and humectant.

Ethyl Linoleate Emollient, Perfuming
Fragrance IconNot safe for Fungal Acne Icon
FragranceFragrance Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Ethyl Linoleate is a fragrance and isn't fungal acne safe.

Very Disliked Full details ->
Asiaticoside Antioxidant, Skin Conditioning
Antioxidant Icon
AntioxidantAntioxidant Icon

Asiaticoside comes from the super popular skin-soothing ingredient, Centella asiatica. It is one of four active compounds found in the extract of Centella Asiatica.

Asiatic Acid Skin Conditioning, Stabilising

Asiatic Acid is a major component of Centella Asiatica Extract. It has wound-healing, anti-inflammatory, and antioxidant properties.

Madecassic Acid Skin Conditioning

Madecassic Acid is a major component of Centella Asiatica Extract. It has anti-inflammatory and antioxidant properties.

Naringenin Skin Conditioning

We don't have a description for Naringenin.

Unknown Full details ->
Cyanocobalamin Skin Conditioning

Cyanocobalamin is the manufactured version of vitamin B12. Our bodies use B12 for cell production.

Panthenyl Triacetate

We don't have a description for Panthenyl Triacetate.

Unknown Full details ->
4-T-Butylcyclohexanol Masking, Perfuming
Fragrance Icon
FragranceFragrance Icon

4-T-Butylcyclohexanol is a fragrance.

Hydroxyphenyl Propamidobenzoic Acid Skin Conditioning

We don't have a description for Hydroxyphenyl Propamidobenzoic Acid.

Unknown Full details ->
Cetylhydroxyproline Palmitamide Skin Conditioning

We don't have a description for Cetylhydroxyproline Palmitamide.

Unknown Full details ->
Bisabolol Masking, Skin Conditioning, Soothing
Helps reduce irritation Icon
Helps reduce irritationHelps reduce irritation Icon

Bisabolol is pimarily used to add fragrance to a product. However, it is also famous for helping soothe skin.

Brassica Campestris Sterols Emollient, Skin Conditioning
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Brassica Campestris Sterols isn't fungal acne safe.

Disliked Full details ->
Sphingolipids Emollient, Skin Conditioning, Skin Protecting

We don't have a description for Sphingolipids.

Phospholipids Skin Conditioning

Phospholipids are naturally found in our skin as they are the main component of cell membranes. Phospholipids have humectant, emollient, antioxidant properties.

Epigallocatechin Gallatyl Glucoside Antioxidant, Skin Conditioning
Antioxidant Icon
AntioxidantAntioxidant Icon

Epigallocatechin Gallatyl Glucoside is an antioxidant.

Gallyl Glucoside Antioxidant, Skin Conditioning
Antioxidant Icon
AntioxidantAntioxidant Icon

Gallyl Glucoside is an antioxidant.

Propyl Gallate Antioxidant, Perfuming
Antioxidant IconFragrance Icon
AntioxidantAntioxidant Icon FragranceFragrance Icon

Propyl Gallate is an antioxidant and is a fragrance.

Xylitol Humectant, Skin Conditioning

Xylitol is a humectant and prebiotic. It can help with dry skin.

Zingiber Officinale Root Extract Masking, Skin Conditioning, Tonic

Zingiber Officinale is more commonly known as ginger.

Stearic Acid Cleansing, Emulsifying, Emulsion Stabilising
2-3 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon
2 Concerns

Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.

2-3 Com. / 0 Irr.
Very Disliked Full details ->
Dicetyl Phosphate Emulsifying

We don't have a description for Dicetyl Phosphate.

Unknown Full details ->
Isoceteth-20 Emulsifying
May cause irritation Icon
May cause irritationMay cause irritation Icon

Isoceteth-20 comes from Isocetyl Alcohol. It is an emulsifier. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Very Disliked Full details ->
Xanthan Gum Emulsifying, Emulsion Stabilising, Gel Forming

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.

Disliked Full details ->
Trisodium Ethylenediamine Disuccinate

Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.

Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon 4 Benefits May cause irritationMay cause irritation Icon

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.

0-3 Com. / 0-3 Irr.
Dehydroacetic Acid Preservative
Preservative Icon
PreservativePreservative Icon

Dehydroacetic Acid is fungicide and bactericide. It is used as a preservative in cosmetics. Preservatives help elongate the shelf life of a product.

P-Anisic Acid Masking

We don't have a description for P-Anisic Acid.

Unknown Full details ->
Phytic Acid
AHA IconHelps brighten skin IconMay worsen Rosacea Icon
AHAAHA Icon Helps brighten skinHelps brighten skin Icon May worsen RosaceaMay worsen Rosacea Icon

Phytic Acid is a gentle AHA and antioxidant. The chemical makeup makes it classified as an AHA, such as lactic acid.

Sodium Phytate

Sodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.

Sodium Citrate Buffering, Masking

Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.

Sodium Hydroxide Buffering

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

Benzyl Alcohol Perfuming, Preservative, Solvent
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon
AlcoholAlcohol Icon FragranceFragrance Icon PreservativePreservative Icon 6 Concerns

Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.

Very Disliked Full details ->
Ethylhexylglycerin Skin Conditioning

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

Phenoxyethanol Preservative
Preservative Icon
PreservativePreservative Icon

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.

Very Disliked Full details ->
Chlorphenesin Antimicrobial, Preservative
Preservative Icon
PreservativePreservative Icon

Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.

Disliked Full details ->

Ingredient Ratings

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

C-Tetra Lipid Vitamin C Serum
2
1
5
3
liked
mixed
disliked
not rated
Soothing & Barrier Support Serum
21
6
9
9
liked
mixed
disliked
not rated

When to use

63 Routines
90% use in am
10% use in pm
95% use every day
When to use See routines that use it ->
571 Routines
44% use in am
56% use in pm
90% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Medik8 C-Tetra Lipid Vitamin C Serum 11 ingredients

5.0 /5
from 1 rating

The Ordinary Soothing & Barrier Support Serum 45 ingredients

3.9 /5
from 9 ratings
Broke Me Out (2) Great Value (1) Hydrating (1)
mikkoflam's avatar

mikkoflam

8 months ago · Combination Skin
Review

unfortunately broke me out really badly after 1 week use.

JaxC's avatar

JaxC

2 months ago · Sensitive Skin
Review

After using this for a few weeks I was amazed at how well it improved my skin’s texture. I have to take corticosteroids for life, which has thinned...

After using this for a few weeks I was amazed at how well it improved my skin’s texture. I have to take corticosteroids for life, which has thinned my skin substantially, which in turn has made my skin very susceptible to eczema and scarring from even the smallest acne spot. This has made my skin plump and healthy looking once again and made it so when a spot shows up, the scaring is almost nonexistent. My eczema has improved greatly as well. I couldn’t say enough good things about this product to be honest!