RYO Hair Loss Expert Care Shampoo For Oily Scalp Versus REDKEN Volume Injection Shampoo
Updated on March 04, 2025
Overview
What they are
These products are both reef safe shampoos. They have a total of 8 ingredients in common
Free From
They both do not contain any parabens or silicones
What's Inside
They both contain harsh alcohols, common allergens, fragrances and sulfates
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
RYO Hair Loss Expert Care Shampoo For Oily Scalp 58 ingredients
REDKEN Volume Injection Shampoo 24 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
RYO Hair Loss Expert Care Shampoo For Oily Scalp 58 ingredients
REDKEN Volume Injection Shampoo 24 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium Laureth Sulfate
Cleansing
Ammonium Lauryl Sulfate
Cleansing
Glycerin
Humectant
Cocamide Mea
EmulsifyingParfum
Masking
Disodium Laureth Sulfosuccinate
CleansingLauryl Hydroxysultaine
CleansingCaffeine
Skin Conditioning
PPG-3 Caprylyl Ether
SolventAlcohol Denat.
Antimicrobial
Phenoxyethanol
Preservative
Sodium Benzoate
Masking
Cetyl Alcohol
Emollient
Menthol
Masking
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningCitric Acid
Buffering
Sodium Salicylate
Preservative
Caprylic/Capric Glycerides
EmollientTrihydroxystearin
Skin Conditioning
Sodium Citrate
BufferingDicaprylyl Ether
Emollient
Tetrasodium EDTA
Butylene Glycol
Humectant
Malt Extract
Skin ProtectingDisodium EDTA
Linalool
Perfuming
PEG-45m
HumectantGlyceryl Stearate
Emollient
Mentha Arvensis Leaf Extract
MaskingBenzyl Salicylate
Perfuming
Hexyl Cinnamal
Perfuming
Benzyl Benzoate
Antimicrobial
Geraniol
Perfuming
Alpha-Isomethyl Ionone
Perfuming
Hydrolyzed Corn Starch
HumectantCaprylyl Glycol
Emollient
Pinus Densiflora Leaf Extract
Antimicrobial
1,2-Hexanediol
Skin Conditioning
Dehydroacetic Acid
Preservative
Panax Ginseng Extract
Antioxidant
Panax Ginseng Root Extract
Emollient
Silica
Abrasive
Zingiber Officinale Root Extract
Masking
Ethylhexylglycerin
Skin ConditioningTocopherol
Antioxidant
Oryza Sativa Extract
Absorbent
Imperata Cylindrica Root Extract
Skin ConditioningScutellaria Baicalensis Root Extract
AstringentSesamum Indicum Seed Extract
Skin ConditioningLonicera Japonica Flower Extract
Skin ConditioningCalendula Officinalis Flower Extract
Masking
Tribulus Terrestris Fruit Extract
Skin ConditioningCamellia Japonica Seed Oil
Emollient
Camellia Sinensis Seed Oil
Humectant
PEG-150 Pentaerythrityl Tetrastearate
Emulsifying
PPG-2 Hydroxyethyl Cocamide
EmulsifyingPolygonum Multiflorum Root Extract
Skin ConditioningWater, Sodium Laureth Sulfate, Ammonium Lauryl Sulfate, Glycerin, Cocamide Mea, Parfum, Disodium Laureth Sulfosuccinate, Lauryl Hydroxysultaine, Caffeine, PPG-3 Caprylyl Ether, Alcohol Denat., Phenoxyethanol, Sodium Benzoate, Cetyl Alcohol, Menthol, Guar Hydroxypropyltrimonium Chloride, Citric Acid, Sodium Salicylate, Caprylic/Capric Glycerides, Trihydroxystearin, Sodium Citrate, Dicaprylyl Ether, Tetrasodium EDTA, Butylene Glycol, Malt Extract, Disodium EDTA, Linalool, PEG-45m, Glyceryl Stearate, Mentha Arvensis Leaf Extract, Benzyl Salicylate, Hexyl Cinnamal, Benzyl Benzoate, Geraniol, Alpha-Isomethyl Ionone, Hydrolyzed Corn Starch, Caprylyl Glycol, Pinus Densiflora Leaf Extract, 1,2-Hexanediol, Dehydroacetic Acid, Panax Ginseng Extract, Panax Ginseng Root Extract, Silica, Zingiber Officinale Root Extract, Ethylhexylglycerin, Tocopherol, Oryza Sativa Extract, Imperata Cylindrica Root Extract, Scutellaria Baicalensis Root Extract, Sesamum Indicum Seed Extract, Lonicera Japonica Flower Extract, Calendula Officinalis Flower Extract, Tribulus Terrestris Fruit Extract, Camellia Japonica Seed Oil, Camellia Sinensis Seed Oil, PEG-150 Pentaerythrityl Tetrastearate, PPG-2 Hydroxyethyl Cocamide, Polygonum Multiflorum Root Extract
Water
Skin ConditioningSodium Laureth Sulfate
Cleansing
Coco-Betaine
CleansingSodium Lauryl Sulfate
Cleansing
Sodium Chloride
Masking
Glycol Distearate
Emollient
Hexylene Glycol
EmulsifyingParfum
Masking
Aminopropyl Triethoxysilane
Acrylates Copolymer
Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
Alcohol Denat.
Antimicrobial
Polyquaternium-30
Citric Acid
Buffering
Benzyl Alcohol
Perfuming
Linalool
Perfuming
Hexyl Cinnamal
Perfuming
Magnesium Nitrate
Alpha-Isomethyl Ionone
Perfuming
Limonene
Perfuming
Methylchloroisothiazolinone
Preservative
Magnesium Chloride
Methylisothiazolinone
Preservative
Sodium Hydroxide
BufferingWater, Sodium Laureth Sulfate, Coco-Betaine, Sodium Lauryl Sulfate, Sodium Chloride, Glycol Distearate, Hexylene Glycol, Parfum, Aminopropyl Triethoxysilane, Acrylates Copolymer, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Alcohol Denat., Polyquaternium-30, Citric Acid, Benzyl Alcohol, Linalool, Hexyl Cinnamal, Magnesium Nitrate, Alpha-Isomethyl Ionone, Limonene, Methylchloroisothiazolinone, Magnesium Chloride, Methylisothiazolinone, Sodium Hydroxide
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
This ingredient gets a bad rep because it is irritating and drying - mostly due to its astringent property. Astringents draw out natural oils in tissue, constricting pores and leaving your skin dried out.
However, alcohol denat. is not all that bad.
Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin.
This also helps other ingredients become better absorbed upon application.
Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged.
Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments.
The rule of thumb is if this alcohol is near the end of an ingredients list, it will probably not affect your skin much.
Also...
This ingredient has antimicrobial and solvent properties.
The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients.
Other types of astringent alcohols include:
Learn more about Alcohol Denat.Alpha-Isomethyl Ionone is a fragrance. It can be synthetically created or naturally occurring.
The scent of Alpha-Isomethyl Ionone is described as "flowery" but can also be "woody".
Naturally occurring Alpha-Isomethyl Ionone may be found in Saccharomyces cerevisiae, or the yeast used to make wine and bread.
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 Alpha-Isomethyl IononeCitric 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 AcidHexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.
This ingredient is a known EU allergen and may sensitize the skin. The EU requires this ingredient to be listed separately on an ingredients list.
Hexyl Cinnamal is not water soluble but is soluble in oils.
Learn more about Hexyl CinnamalLinalool 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 LinaloolParfum 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 ParfumSodium Laureth Sulfate (SLES) is a foaming, cleansing, and emulsifying ingredient. It is created from palm kernel oil or coconut oil. SLES is not the same as sodium lauryl sulfate. It is much milder and less likely to irritate.
SLES helps create foam in personal products. It also prevents ingredients from separating, helping to elongate the shelf life.
Sodium Laureth Sulfate is a type of sulfate. It can be drying. We recommend speaking with a professional about using this ingredient if you have concerns.
Learn more about Sodium Laureth SulfateWater. 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 WaterIngredient Ratings
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When to use
RYO Hair Loss Expert Care Shampoo For Oily Scalp 58 ingredients
REDKEN Volume Injection Shampoo 24 ingredients
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