Versus

Ouai Leave In Conditioner - St. Barts Versus It’s a 10 Miracle Leave-In Product

Leave-in Conditioner
Leave-in Conditioner
American Brand United States
American Brand United States

Updated on June 02, 2025

Overview

What they are

These products are both cruelty-free leave-in conditioners. They have a total of 10 ingredients in common

Suited For

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

Free From

They both do not contain any sulfates

What's Inside

They both contain common allergens, fragrances and silicones

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

What's inside

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Leave In Conditioner

Water

Skin Conditioning

Cyclopentasiloxane

Emollient
Silicon Icon

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Quaternium-91

Phenoxyethanol

Preservative
Preservative Icon

Brassica Campestris/Aleurites Fordi Oil Copolymer

Skin Conditioning
Oil Icon

Cetrimonium Chloride

Antimicrobial
Preservative Icon

Dipropylene Glycol

Humectant

Glycerin

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

Myristyl Myristate

Emollient
0-5 / 2 May worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Polysilicone-29

Silicon Icon

Behentrimonium Chloride

Preservative
Preservative Icon

Benzyl Salicylate

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Silicone Quaternium-16

Skin Conditioning
Silicon Icon

Limonene

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Linalool

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Undeceth-11

Emollient

Coumarin

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Hydroxycitronellal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Guar Hydroxypropyltrimonium Chloride

Skin Conditioning

Butyloctanol

Humectant

Undeceth-5

Emulsifying

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

Adansonia Digitata Seed Oil

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

Argania Spinosa Kernel Oil

Emollient
Oil IconHelps hydrate Dry Skin IconHelps reduce irritation IconGood for Dark Spots IconNot safe for Fungal Acne Icon

Disodium EDTA

Oenothera Biennis Oil

Emollient
3 / 2 Oil IconHelps reduce irritation IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Glycolic Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconMay worsen Rosacea Icon

Leuconostoc/Radish Root Ferment Filtrate

Antimicrobial
Not safe for Fungal Acne Icon

Panthenol

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

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Sodium Hydroxide

Buffering

Tamarindus Indica Extract

Smoothing

Sodium PCA

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

Sodium Lactate

Buffering

Acetic Acid

Buffering

Arginine

Masking
Good for Scar Healing IconNot safe for Fungal Acne Icon

Cetearamidoethyldiethonium Succinoyl Hydrolyzed Pea Protein

Cleansing

Aspartic Acid

Masking
Helps hydrate Dry Skin Icon

Tocopherol

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

PCA

Humectant
Helps hydrate Dry Skin Icon

BHT

Antioxidant
Antioxidant Icon

Iodopropynyl Butylcarbamate

Preservative
Preservative Icon

Isopropyl Alcohol

Solvent
0 / 0 Alcohol IconCan worsen Dry Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Glycine

Buffering
Helps hydrate Dry Skin Icon

Alanine

Masking

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

Serine

Masking
Helps hydrate Dry Skin Icon

Valine

Masking

Hydrolyzed Rhodophyceae Extract

Isoleucine

Skin Conditioning

Proline

Skin Conditioning

Threonine

Helps hydrate Dry Skin Icon

Histidine

Humectant
Helps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Phenylalanine

Masking
Helps hydrate Dry Skin IconGood for Scar Healing Icon

Ingredients Explained

These ingredients are found in both products.

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

This ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners.

It does not cause irritation or sensitization in leave-on products at 1-5%.

Humectant, Masking, Skin Conditioning

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Learn more about Butylene Glycol
Emollient, Emulsifying, Emulsion Stabilising

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.

Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.

Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.

This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.

Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.

Learn more about Cetearyl Alcohol
Emollient, Skin Conditioning, Solvent

Cyclopentasiloxane, or D5, is a silicone used to improve texture of products and trap moisture.

D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.

It is also an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.

Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.

Learn more about Cyclopentasiloxane
Perfuming, Solvent

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

It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

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.

Learn more about Limonene
Perfuming

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

Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.

This ingredient has a scent that is floral, spicy tropical, and citrus-like.

Learn more about Linalool
Skin Conditioning

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Learn more about Panthenol
Masking, Perfuming

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient 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.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or '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 by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

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

Parfum can also be used to mask or cover an unpleasant scent.

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
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.

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

When to use

36 Routines
44% use in am
56% use in pm
72% use every day
When to use See routines that use it ->

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Ouai Leave In Conditioner 58 ingredients

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