Cien Classic Clean Shampoo Versus Head & Shoulders Classic Clean Dandruff Shampoo
Updated on March 12, 2025
Overview
What they are
These products are both reef safe shampoos. They have a total of 10 ingredients in common
Free From
They both do not contain any harsh alcohols, common allergens, oils or parabens
What's Inside
They both contain 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
Cien Classic Clean Shampoo 16 ingredients
Head & Shoulders Classic Clean Dandruff Shampoo 18 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Cien Classic Clean Shampoo 16 ingredients
Head & Shoulders Classic Clean Dandruff Shampoo 18 ingredients
Concerns
Concerns
Ingredients Side-by-side
Zinc Pyrithione 1%
Antiseborrhoeic
Water
Skin ConditioningSodium Lauryl Sulfate
Cleansing
Sodium Laureth Sulfate
Cleansing
Glycol Distearate
Emollient
Zinc Carbonate
Sodium Chloride
Masking
Sodium Xylenesulfonate
Cocamidopropyl Betaine
Cleansing
Parfum
Masking
Dimethicone
Emollient
Sodium Benzoate
Masking
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningMagnesium Carbonate Hydroxide
BufferingMethylchloroisothiazolinone
Preservative
Methylisothiazolinone
Preservative
Blue 1 Lake
Cosmetic ColorantCI 17200
Cosmetic ColorantZinc Pyrithione 1%, Water, Sodium Lauryl Sulfate, Sodium Laureth Sulfate, Glycol Distearate, Zinc Carbonate, Sodium Chloride, Sodium Xylenesulfonate, Cocamidopropyl Betaine, Parfum, Dimethicone, Sodium Benzoate, Guar Hydroxypropyltrimonium Chloride, Magnesium Carbonate Hydroxide, Methylchloroisothiazolinone, Methylisothiazolinone, Blue 1 Lake, CI 17200
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ci 17200 is a synthetic reddish-purple dye.
Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine, a compound with two amino groups.
This ingredient is a surfactant and cleanser. It helps gather the dirt, pollutants, and other impurities in your skin to be washed away. It also helps thicken a product and make the texture more creamy.
Being created from coconut oil means Cocamidopropyl Betaine is hydrating for the skin.
While Cocamidopropyl Betaine was believed to be an allergen, a study from 2012 disproved this. It found two compounds in unpure Cocamidopropyl Betaine to be the irritants: aminoamide and 3-dimethylaminopropylamine. High-grade and pure Cocamidopropyl Betaine did not induce allergic reactions during this study.
Learn more about Cocamidopropyl BetaineGlycol Distearate serves as a pearlizing or opacifying agent in cosmetic products.
It's often included in cleansers and haircare products to give them a lustrous or shimmering appearance.
It is derived from stearic acid, a natural fatty acid commonly found in vegetable oils and animal fats.
Glycol Distearate isn't fungal acne safe.
Learn more about Glycol DistearateMCI is a preservative and known skin-irritant. It has anti-bacteria anti-fungal properties.
Studies spanning several decades have shown this ingredient to cause skin irritation and allergies.
MCI is commonly combined with methylisothiazolinone (MI). Other names for this mixture include Kathon CG and Euxyl K 100.
The use of this ingredient varies around the world:
Learn more about MethylchloroisothiazolinoneMI is a preservative and known skin irritant. In the past, MI was used for its ability to prevent bacteria, yeast, and fungi growth in low doses.
Nowadays, you'll most likely see MI combined with Methylchloroisothiazolinone (MCI). Trade names for this combination include Kathon CG or Euxyl K 100.
Since then, numerous studies have shown this ingredient to cause contact dermatitis, or skin irritation.
The use of this ingredient varies around the world:
Learn more about MethylisothiazolinoneParfum 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 ParfumChances 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 ChlorideSodium 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 WaterZinc Pyrithione is a preservative. It inhibits the multiplying of fungal and bacterial cells.
You'll most likely find this ingredient in Malassezia treatments. In the US, this ingredient is most common in anti-dandruff shampoos. However, the European Union has prohibited the use of this ingredient starting in 2022.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Cien Classic Clean Shampoo 16 ingredients
Head & Shoulders Classic Clean Dandruff Shampoo 18 ingredients
Reviews
Here's what our community thinks
