Ethique Frizz Wrangler Smoothing Solid Shampoo Bar Versus Ethique Professor Curl Curl-Defining Solid Shampoo Bar
Updated on January 08, 2024
Overview
What they are
These products are both cruelty-free and reef safe shampoos. They have a total of 10 ingredients in common
Suited For
They're both likely to be good for dry skin
Free From
They both do not contain any parabens or silicones
What's Inside
They both contain 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
Ethique Frizz Wrangler Smoothing Solid Shampoo Bar 14 ingredients
Ethique Professor Curl Curl-Defining Solid Shampoo Bar 24 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Ethique Frizz Wrangler Smoothing Solid Shampoo Bar 14 ingredients
Ethique Professor Curl Curl-Defining Solid Shampoo Bar 24 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Sodium Cocoyl Isethionate
CleansingStearic Acid
Cleansing
Sodium Cocoyl Glycinate
CleansingTheobroma Cacao Seed Butter
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Brassica Alcohol
Emollient
Betaine
Humectant
Behentrimonium Methosulfate
Lactic Acid
Buffering
Sodium Isethionate
CleansingGuar Hydroxypropyltrimonium Chloride
Skin ConditioningParfum
Masking
Cymbopogon Schoenanthus Oil
Masking
Benzyl Alcohol
Perfuming
Glycerin
Humectant
Sodium Chloride
Masking
Water
Skin ConditioningDehydroacetic Acid
Preservative
Mica
Cosmetic Colorant
Citral
Perfuming
Geraniol
Perfuming
Linalool
Perfuming
CI 77891
Cosmetic ColorantCI 77288
Cosmetic ColorantSodium Cocoyl Isethionate, Stearic Acid, Sodium Cocoyl Glycinate, Theobroma Cacao Seed Butter, Butyrospermum Parkii Butter, Brassica Alcohol, Betaine, Behentrimonium Methosulfate, Lactic Acid, Sodium Isethionate, Guar Hydroxypropyltrimonium Chloride, Parfum, Cymbopogon Schoenanthus Oil, Benzyl Alcohol, Glycerin, Sodium Chloride, Water, Dehydroacetic Acid, Mica, Citral, Geraniol, Linalool, CI 77891, CI 77288
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Behentrimonium Methosulfate is an ammonium salt. It is mainly used to prevent static in haircare products as a surfactant.
Surfactants have differing ends: one side is hydrophilic while the other end is hydrophobic.
Surfactants also help your cleansers remove pollutants more easily from the skin.
Learn more about Behentrimonium MethosulfateBrassica Alcohol isn't fungal acne safe.
Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.
Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.
Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.
Like glycolic acid, it can:
Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.
Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.
To get results, choose products with a pH between 3-4.
Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.
Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.
When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.
Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.
Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.
Read more about some other popular AHA's here:
Learn more about Lactic AcidLinalool 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 cocoyl isethionate is a natural ingredient from coconut oil. It is an ultra gentle cleanser that gives a nice foam without drying the skin or impacting the skin barrier.
The amount of foam created depends on the amount of sodium cocoyl isethionate used in the product.
This ingredient also helps improve the spreadability of a product.
Learn more about Sodium Cocoyl IsethionateWe don't have a description for Sodium Isethionate yet.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
As an emollient, stearic acid helps soften skin. It aids the skin's protective barrier by preventing water loss. It also provides a gentle cleansing effect without stripping away natural oils.
Stearic acid may also be used to enhance the texture of products. It can add volume and stabilize ingredients such as water and oil. This can help water and oil ingredients from separating.
Sources of stearic acid include animal or vegetable fats/oils such as coconut or shea. It can be naturally found in butter, cocoa butter, shea butter, vegetable fats, and animal tallow.
This ingredient may not be Malassezia folliculitis, or fungal-acne safe.
Learn more about Stearic AcidTheobroma Cacao Seed Butter comes from the Theobroma cacoa, or Cacao tree. Cacao trees are native to tropical landscapes.
Like other plant butters, Cacao seed butter is an emollient. Emollients help soothe and soften your skin. By creating a barrier to trap moisture in, emollients help keep your skin hydrated.
Cacao seed butter contains antioxidants known as polyphenols. Antioxidants help fight free-radical molecules by stabilizing them. Unstable free-radicals may cause damage to your skin cells. Antioxidants may help with anti-aging.
Theobroma Cacao Seed Butter can be bad for acne prone skin.
Learn more about Theobroma Cacao Seed ButterWater. 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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