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Rahua Hydration Shampoo Versus Necessaire The Shampoo

Shampoo
Shampoo
American Brand United States
Brand

Updated on January 09, 2024

Overview

What they are

These products are both cruelty-free and reef safe shampoos. They have a total of 5 ingredients in common

Suited For

They're both likely to be good for fighting acne, dry skin, brightening skin, sensitive skin, oily skin, reducing pores and dark spots

Free From

They both do not contain any harsh alcohols, common allergens, 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

Rahua Hydration Shampoo 27 ingredients

Necessaire The Shampoo 21 ingredients

At a glance

Click on any of the items below to learn more

Rahua Hydration Shampoo 27 ingredients

Necessaire The Shampoo 21 ingredients

Notable Ingredients

Benefits

Concerns

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Hydration Shampoo
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.

Mangifera Indica Fruit Extract Skin Conditioning

We don't have a description for Mangifera Indica Fruit Extract.

Unknown Full details ->
Passiflora Incarnata Fruit Extract Skin Conditioning, Skin Protecting

We don't have a description for Passiflora Incarnata Fruit Extract.

Unknown Full details ->
Camellia Sinensis Leaf Extract Antimicrobial, Antioxidant, Astringent
Antioxidant IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconHelps fight Acne Icon
AntioxidantAntioxidant Icon 5 Benefits

Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.

Sodium Cocoyl Isethionate Cleansing
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Sodium cocoyl isethionate is a natural ingredient from the fatty acids of coconut oil. It is a surfactant and helps with cleansing the skin.

Disliked Full details ->
Betaine Humectant, Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon
3 Benefits

Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.

Sodium Methyl Cocoyl Taurate Cleansing, Foaming
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

This gentle cleansing and foaming ingredient is known for leaving a smooth feeling in skin and hair. It is made using coconut oil.

Very Disliked Full details ->
Sodium Cocoyl Glutamate Cleansing

Sodium Cocoyl Glutamate is a gentle cleanser and surfactant. It is the sodium salt of the Cocoyl Glutamic Acid and comes from coconut oil. As a surfactant, it helps lift dirt and oil to be washed away.

Disodium Cocoyl Glutamate Cleansing

We don't have a description for Disodium Cocoyl Glutamate.

Sodium Chloride Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon
3 Concerns

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.

Very Disliked Full details ->
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon
2 Benefits

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Oenocarpus Bataua Seed Oil Emollient
Oil Icon
OilOil Icon

Oenocarpus Bataua Seed Oil is an oil.

Unknown Full details ->
Plukenetia Volubilis Seed Oil Emollient, Humectant, Skin Protecting
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Plukenetia Volubilis Seed Oil is an oil and isn't fungal acne safe.

Sucrose Humectant, Skin Conditioning, Soothing

Sucrose is a natural sugar found in fruits, vegetables, and nuts. It is the main constituent of white sugar.

Hydrolyzed Quinoa Skin Conditioning

We don't have a description for Hydrolyzed Quinoa.

Unknown Full details ->
Mauritia Flexuosa Fruit Oil Skin Conditioning
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Mauritia Flexuosa Fruit Oil is an oil and isn't fungal acne safe.

Disliked Full details ->
Kaolin Abrasive, Absorbent, Cosmetic Colorant
0 / 0 Exfoliant IconGood for Oily Skin IconHelps fight Acne Icon
ExfoliantExfoliant Icon 2 Benefits

Kaolin is a clay. It is used for oil control and to help minimize pores. Like other clays, kaolin has the ability to absorb excess sebum or oil. This can help clean out pores and mattify the skin.

0 Com. / 0 Irr.
Aroma

Aroma refers to an ingredient, or mixture of ingredients, that impart or mask a flavor.

Very Disliked Full details ->
Citronellal Masking

Citronellal is the major component of citronella oil. It is a fragrance with a distinct lemon scent. Citronellal is a known EU allergen and causes contact allergies.

Unknown Full details ->
Lactic Acid Buffering, Humectant, Skin Conditioning
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
AHAAHA Icon 6 Benefits 3 Concerns

Lactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.

Hydroxyethylcellulose Emulsion Stabilising, Stabilising

Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.

Glycine Buffering, Skin Conditioning

Glycine is an amino acid that helps build proteins. It is already present in our skin as our bodies produce them naturally.

Coco-Caprylate Emollient
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Coco-Caprylate is created from fatty coconut alcohol and caprylic acid.

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 ->
Arginine Masking, Skin Conditioning
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

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

Potassium Sorbate Preservative
Preservative Icon
PreservativePreservative Icon

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

Disliked Full details ->
Guar Hydroxypropyltrimonium Chloride Skin Conditioning

This ingredient is derived from guar gum.

The Shampoo
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.

Sodium Lauroyl Methyl Isethionate Cleansing

Sodium Lauroyl Methyl Isethionate is a cleansing ingredient. It is a surfactant, meaning it helps gather dirt, oil, and other pollutants. This helps them be rinsed away easily.

Aloe Barbadensis Leaf Juice Skin Conditioning
Helps reduce Skin Redness IconHelps reduce irritation Icon
2 Benefits

Aloe Barbadensis Leaf Juice comes from leaves of the aloe plant. Aloe Barbadensis Leaf Juice is best known for helping to soothe sunburns. It is also anti-inflammatory, moisturizing, antiseptic, and can help heal wounds.

Cocamidopropyl Betaine Cleansing
May worsen Eczema Icon
May worsen EczemaMay worsen Eczema Icon

Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine. Dimethylaminopropylamine is a diamine, an amine with two amino groups.

Disliked Full details ->
Sodium Methyl Oleoyl Taurate Cleansing, Foaming

We don't have a description for Sodium Methyl Oleoyl Taurate.

Unknown Full details ->
Sodium Cocoyl Isethionate Cleansing
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Sodium cocoyl isethionate is a natural ingredient from the fatty acids of coconut oil. It is a surfactant and helps with cleansing the skin.

Disliked Full details ->
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.

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.

Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon
Hyaluronic AcidHyaluronic Acid Icon

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

0 Com. / 0 Irr.
Panthenol Skin Conditioning
0 / 0 Helps reduce irritation Icon
Helps reduce irritationHelps reduce irritation Icon

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

0 Com. / 0 Irr.
Apium Graveolens Seed Extract Antioxidant, Perfuming
Antioxidant IconFragrance Icon
AntioxidantAntioxidant Icon FragranceFragrance Icon

Apium Graveolens Seed Extract is an antioxidant and is a fragrance.

Unknown Full details ->
Persea Gratissima Oil Skin Conditioning
0-3 / 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

Persea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.

0-3 Com. / 0 Irr.
Disliked Full details ->
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon
2 Benefits

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Disodium Cocoyl Glutamate Cleansing

We don't have a description for Disodium Cocoyl Glutamate.

Caprylic/Capric Triglyceride Masking, Skin Conditioning

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Citric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

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

Disliked Full details ->
Caprylhydroxamic Acid

Caprylhydroxamic Acid is a chelating agent.

Sodium Chloride Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon
3 Concerns

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.

Very Disliked Full details ->
1,2-Hexanediol Skin Conditioning, Solvent

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

Caprylyl Glycol Emollient, Humectant, Skin Conditioning

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

Sodium Benzoate Masking, Preservative
Preservative Icon
PreservativePreservative Icon

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.

Disliked Full details ->

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

Learn more about Water
Cleansing
Disliked

Sodium cocoyl isethionate is a natural ingredient from the fatty acids of coconut oil. It is a surfactant and helps with cleansing the skin.

By binding to water and oil, it helps gently clean skin. It also helps the spreadability of the product.

Sodium cocoyl isethionate is also added to help create foam without drying the skin. However, this is depending on the amount of Sodium cocoyl isethionate.

Sodium Cocoyl Isethionate may not be fungal acne safe.

Learn more about Sodium Cocoyl Isethionate
Cleansing
Mixed

We don't have a description for Disodium Cocoyl Glutamate.

Masking
Very Disliked

Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.

This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator.

You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating.

There is much debate on whether this ingredient is comedogenic. The short answer - comedogenic ratings don't tell the whole story. Learn more about comegodenic ratings here.

The concensus about this ingredient causing acne seems to be divided. Research is needed to understand if this ingredient does cause acne.

Scrubs may use salt as the primary exfoliating ingredient.

Learn more about Sodium Chloride
Humectant, Skin Conditioning, Skin Protecting
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

Ingredient Ratings

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

Hydration Shampoo
9
5
8
5
liked
mixed
disliked
not rated
The Shampoo
10
3
6
2
liked
mixed
disliked
not rated

When to use

Rahua Hydration Shampoo 27 ingredients

Necessaire The Shampoo 21 ingredients

9 Routines
22% use in am
78% use in pm
56% use every day