Versus

Sleek by Sarasalon Melty Repair Hair Milk Versus Ruban De Chouchou Hair Milk

Leave-in Treatment
Leave-in Treatment
Japanese Brand Japan
Japanese Brand Japan

Updated on April 24, 2025

Overview

What they are

These products are both leave-in treatments. They have a total of 17 ingredients in common

Cool Features

They both contain AHA, ceramides and Vitamin E

Suited For

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

Free From

They both do not contain any sulfates

What's Inside

They both contain harsh alcohols, 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

About this product

About this product

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
Melty Repair Hair Milk

Water

Skin Conditioning

Isopentyldiol

Humectant

Dimethicone

Emollient
1 / 0 Silicon Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Pentylene Glycol

Skin Conditioning
Hair Milk

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

Macadamia Ternifolia Seed Oil

Emollient
Oil IconNot safe for Fungal Acne Icon

Dimethicone

Emollient
1 / 0 Silicon Icon

Dipropylene Glycol

Masking

Steartrimonium Chloride

Preservative
Preservative Icon

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Guar Hydroxypropyltrimonium Chloride

Skin Conditioning

Amodimethicone

Silicon Icon

Methylparaben

Preservative
0 / 0 Preservative IconParaben IconNon-Reef-Safe IconMay worsen Eczema Icon

Behenyl Alcohol

Emollient
Fatty Alcohol Icon

Glyceryl Stearate

Emollient
1 / 0 Not safe for Fungal Acne Icon

Propylparaben

Preservative
0 / 0 Preservative IconParaben IconCan worsen Dry Skin IconNon-Reef-Safe 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

Tocopherol

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

Sodium Citrate

Buffering

Phellodendron Amurense Bark Extract

Skin Conditioning

Arginine

Masking
Good for Scar Healing IconNot safe for Fungal Acne Icon

Polyglyceryl-10 Myristate

Skin Conditioning
Not safe for Fungal Acne Icon

Beeswax

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

Quaternium-33

Hydrogenated Lecithin

Emulsifying

Alcohol Denat.

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Phytosterols

Skin Conditioning

Hydroxypropyltrimonium Hydrolyzed Keratin

Skin Conditioning

Sodium Lauroyl Lactylate

Emulsifying

Ceramide Ng

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

Ceramide AP

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

Ceramide Ag

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

Ceramide NP

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

Paeonia Albiflora Root Extract

Skin Conditioning

Rosa Canina Fruit Extract

Astringent
Good for Scar Healing Icon

Hydrolyzed Linseed Seed

Humectant

Crataegus Monogyna Fruit Extract

Skin Conditioning

Salvia Officinalis Leaf Extract

Cleansing

Thymus Vulgaris Flower/Leaf Extract

Masking

Lavandula Angustifolia Flower Extract

Cleansing
May cause irritation IconEU Allergen Icon

Rosmarinus Officinalis Leaf Extract

Antimicrobial

Methyl Carboxymethylphenyl Aminocarboxypropylphosphonate

Antioxidant
Antioxidant Icon

Camellia Sinensis Leaf Extract

Antimicrobial
Antioxidant IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging Icon

Peucedanum Japonicum Leaf/Stem Extract

Humectant

Phytosphingosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation Icon

Cholesterol

Emollient
0 / 0 Helps hydrate Dry Skin Icon

Achillea Millefolium Extract

Cleansing

Xanthan Gum

Emulsifying

Carbomer

Emulsion Stabilising
1 / 0

Vaccinium Myrtillus Leaf Extract

Astringent

Cucumis Sativus Fruit Extract

Emollient

Ceramide EOP

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

Isopropyl Alcohol

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

Phenoxyethanol

Preservative
Preservative Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea 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
Emollient, Skin Conditioning, Skin Protecting

Dimethicone is a type of synthetic silicone created from natural materials such as quartz.

What it does:

Dimethicone comes in different viscosities:

Depending on the viscosity, dimethicone has different properties.

Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.

This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.

Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.

Learn more about Dimethicone
Humectant, Skin Conditioning, Skin Protecting

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
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

We don't have a description for Hydroxypropyltrimonium Hydrolyzed Keratin yet.

We don't have a description for Quaternium-33 yet.

Skin Conditioning

Ceramide NG is a type of Ceramide. The NG stands for a sphinganine base.

Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.

Ceramides are an important building block for our skin barrier. A stronger barrier helps the skin look more firm and hydrated. By bolstering the skin ceramides act as a barrier against irritating ingredients. This can help with inflammation as well.

If you would like to eat ceramides, sweet potatoes contain a small amount.

Read more about other common types of ceramides here: Ceramide AP Ceramide EOP Ceramide NP

Learn more about Ceramide Ng
Skin Conditioning

Ceramide NP is a type of ceramide.

Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.

Ceramides are an important building block for our skin barrier. A stronger barrier helps the skin look more firm and hydrated. By bolstering the skin ceramides act as a barrier against irritating ingredients. This can help with inflammation as well.

If you would like to eat ceramides, sweet potatoes contain a small amount.

Read more about other common types of ceramides here: Ceramide AP Ceramide EOP

Learn more about Ceramide NP
Skin Conditioning

Ceramide AP is a type of Ceramide.

Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. Having a strong skin barrier leads to more firm and hydrated skin.

They are known for their ability to hold water and thus are a great ingredient for dry skin. By bolstering the skin ceramides act as a barrier against irritating ingredients. This can help with inflammation as well.

If you would like to eat ceramides, sweet potatoes contain a small amount.

Read more about other common types of ceramides here: Ceramide NP Ceramide EOP

Learn more about Ceramide AP
Masking, Skin Conditioning

Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.

As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.

Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.

Learn more about Arginine
Emulsifying, Skin Conditioning

Hydrogenated Lecithin is created from the hydrogenation of lecithin (a group of phospholipids). Hydrogenation is a chemical reaction between hydrogen and another element.

This ingredient is an emollient and emulsifier. As an emollient, it helps soften skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating.

Buffering, Masking

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

Read more about some other popular AHA's here:

Learn more about Citric Acid
Emollient, Emulsifying, Skin Conditioning

Cholesterol is a class of organic molecules called lipids. It helps hydrate your skin and is essential to having a healthy skin barrier.

Our skin naturally contains cholesterol in the outermost layer. Besides cholesterol, it also contains ceramides and fatty acids. Cholesterol makes up about 1/4 of your skin's outer layer and barrier. Your skin barrier is responsible for keeping allergens and microbes out. Having a healthy skin barrier is also responsible for keeping your skin firm and plump.

Our bodies use cholestrol to create vitamin D, steroid hormones, and more.

Learn more about Cholesterol
Humectant, Masking, Skin Conditioning

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.
  • It has mild preservative properties.

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

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
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.

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

When to use