Here's our complete breakdown comparing the ingredients, attributes, and more of Dr. Barbara Sturm Scalp Serum versus Olaplex Nº.9 Bond Protector Nourishing Hair Serum .
Published on April 05, 2023
Overview
What they are
These products are both cruelty-free and reef safe hair serums. They have a total of 7 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for dry skin and sensitive skin
Free From
They both do not contain any oils, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Hair Serum
Liquid-based hair treatment to help nourish the hair.
Hair Serum
Liquid-based hair treatment to help nourish the hair.
Ingredient Info
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Notable Ingredients
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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This product contains 5 ingredients that may have this attribute:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 6 ingredients that may have this attribute:
This product contains 4 ingredients that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Water • Glycerin • Alcohol Denat. • Lactobacillus/Portulaca Oleracea Ferment Extract • Panthenol • Sorbitol • Arginine • Phenoxyethanol • Disodium Phosphate • Carbomer • Sodium Lactate • Sodium PCA • Xanthan Gum • Citric Acid • Disodium Adenosine Triphosphate • Caffeine • Sodium Hyaluronate • Pterocarpus Marsupium Bark Extract • Ethylhexylglycerin • Algin • Carica Papaya Fruit Extract • Sodium Hydroxide • Phytic Acid • Alcohol • Biosaccharide Gum-1 • Disodium Succinate • Leuconostoc/Radish Root Ferment Filtrate • Tristearyl Citrate • Pantolactone • Glutamic Acid • Sodium Benzoate • Fructose • Glycine • Inositol • Lactic Acid • Niacinamide • Urea
Water • Propanediol • Betaine • Quaternium-22 • Sodium Hyaluronate • Bis-Aminopropyl Diglycol Dimaleate • Cetrimonium Chloride • Panthenol • Hydroxyethylcellulose • Pvp • Guar Hydroxypropyltrimonium Chloride • Furcellaria Lumbricalis Extract • Pelvetia Canaliculata Extract • Xylitylglucoside • Polyquaternium-44 • Anhydroxylitol • Maltitol • Citric Acid • Trisodium Ethylenediamine Disuccinate • Xylitol • Sorbic Acid • Phenoxyethanol • Ethylhexylglycerin • Sodium Benzoate • Parfum • Citral • Citronellol • Hexyl Cinnamal • Limonene • Linalool
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterDr. Barbara Sturm Scalp Serum contains this as ingredient number 1.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 1.
Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.
lt is a humectant, meaning that it helps the skin attract and retain moisture.
Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolDr. Barbara Sturm Scalp Serum contains this as ingredient number 5.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 8.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Dr. Barbara Sturm Scalp Serum contains this as ingredient number 8.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 22.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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.
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 look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidDr. Barbara Sturm Scalp Serum contains this as ingredient number 14.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 18.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateDr. Barbara Sturm Scalp Serum contains this as ingredient number 17.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 5.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Dr. Barbara Sturm Scalp Serum contains this as ingredient number 19.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 23.
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.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
Sodium Benzoate is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateDr. Barbara Sturm Scalp Serum contains this as ingredient number 31.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 24.
Here's what our community thinks of the ingredients in these two products.
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Reviews
Here's what our community thinks
Dr. Barbara Sturm Scalp Serum 37 ingredients
Alternatives
We haven't detected any alternatives for Dr. Barbara Sturm Scalp Serum.
Our Dupe Finder has found 2 potential alternatives that have similar ingredients to Olaplex Nº.9 Bond Protector Nourishing Hair Serum.
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