Dr. Barbara Sturm Scalp Serum Versus Olaplex Nº.9 Bond Protector Nourishing Hair Serum
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, sensitive skin and dark spots
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 needs an update? Let us know.
Ingredient Info
Dr. Barbara Sturm Scalp Serum 37 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
About this product
About this product
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
Key Ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Alcohol Denat.
Antimicrobial
Lactobacillus/Portulaca Oleracea Ferment Extract
Antioxidant
Panthenol
Skin Conditioning
Sorbitol
Humectant
Arginine
Masking
Phenoxyethanol
Preservative
Disodium Phosphate
BufferingCarbomer
Emulsion StabilisingSodium Lactate
BufferingSodium PCA
HumectantXanthan Gum
EmulsifyingCitric Acid
Buffering
Disodium Adenosine Triphosphate
Skin ConditioningCaffeine
Skin ConditioningSodium Hyaluronate
Humectant
Pterocarpus Marsupium Bark Extract
Ethylhexylglycerin
Skin ConditioningAlgin
Masking
Carica Papaya Fruit Extract
Skin ConditioningSodium Hydroxide
BufferingPhytic Acid
Alcohol
Antimicrobial
Biosaccharide Gum-1
Skin ConditioningDisodium Succinate
MaskingLeuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Tris(Tetramethylhydroxypiperidinol)Citrate
StabilisingPantolactone
HumectantGlutamic Acid
HumectantSodium Benzoate
Masking
Fructose
HumectantGlycine
Buffering
Inositol
HumectantLactic Acid
Buffering
Niacinamide
Smoothing
Urea
Buffering
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, Tris(Tetramethylhydroxypiperidinol)Citrate, Pantolactone, Glutamic Acid, Sodium Benzoate, Fructose, Glycine, Inositol, Lactic Acid, Niacinamide, Urea
Water
Skin ConditioningPropanediol
SolventBetaine
Humectant
Quaternium-22
Sodium Hyaluronate
Humectant
Bis-Aminopropyl Diglycol Dimaleate
Skin ConditioningCetrimonium Chloride
Antimicrobial
Panthenol
Skin Conditioning
Hydroxyethylcellulose
Emulsion StabilisingPvp
Emulsion StabilisingGuar Hydroxypropyltrimonium Chloride
Skin ConditioningFurcellaria Lumbricalis Extract
Skin ConditioningPelvetia Canaliculata Extract
Skin ProtectingXylitylglucoside
HumectantPolyquaternium-44
Anhydroxylitol
HumectantMaltitol
HumectantCitric Acid
Buffering
Trisodium Ethylenediamine Disuccinate
Xylitol
HumectantSorbic Acid
Preservative
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningSodium Benzoate
Masking
Parfum
Masking
Citral
Perfuming
Citronellol
Perfuming
Hexyl Cinnamal
Perfuming
Limonene
Perfuming
Linalool
Perfuming
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 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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterPanthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.
Citric 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 AcidSodium 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 HyaluronateEthylhexylglycerin (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.
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.
It 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 BenzoateIngredient Ratings
Here's what our community thinks of the ingredients in these products.
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
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
⋆.ೃ࿔*:･ 🤎
⚠️ 𝐓𝐡𝐢𝐬 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐰𝐚𝐬 𝐦𝐢𝐧𝐢/𝐭𝐫𝐚𝐯𝐞𝐥 𝐬𝐢𝐳𝐞𝐝!!
🍄 𝐌𝐲 𝐡𝐚𝐢𝐫 𝐭𝐲𝐩𝐞: 𝐖𝐚𝐯𝐲 (𝐭𝐲𝐩𝐞 𝟐𝐚), 𝐦𝐞𝐝𝐢𝐮𝐦 𝐝𝐞𝐧𝐬𝐢𝐭𝐲, 𝐦𝐞𝐝𝐢𝐮𝐦 𝐭𝐡𝐢𝐜𝐤𝐧𝐞𝐬𝐬, 𝐥𝐨𝐰 𝐩𝐨𝐫𝐨𝐬𝐢𝐭𝐲. 𝐀𝐭 𝐭𝐡𝐞 𝐭𝐢𝐦𝐞 𝐨𝐟 𝐮𝐬𝐢𝐧𝐠 𝐭𝐡𝐢𝐬 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐈 𝐡𝐚𝐝 𝐝𝐲𝐞𝐝 𝐦𝐲 𝐡𝐚𝐢𝐫 𝐝𝐚𝐫𝐤 𝐛𝐫𝐨𝐰𝐧 𝐰𝐢𝐭𝐡 𝐚 𝐬𝐞𝐦𝐢-𝐩𝐞𝐫𝐦𝐚𝐧𝐞𝐧𝐭 𝐡𝐚𝐢𝐫 𝐝𝐲𝐞. 𝐌𝐲 𝐡𝐚𝐢𝐫 𝐰𝐚𝐬 𝐚 𝐛𝐢𝐭 𝐝𝐚𝐦𝐚𝐠𝐞𝐝 𝐚𝐧𝐝 𝐭𝐚𝐧𝐠𝐥𝐞𝐝 𝐞𝐚𝐬𝐢𝐥𝐲.
🪴 𝐏𝐫𝐨𝐬:
·˚ ༘₊· ͟͟͞͞꒰➳ 𝐃𝐨𝐧'𝐭 𝐠𝐞𝐭 𝐦𝐞 𝐰𝐫𝐨𝐧𝐠, 𝐢𝐭 𝐢𝐬𝐧'𝐭 𝐛𝐚𝐝, 𝐢𝐭'𝐬 𝐣𝐮𝐬𝐭 𝐮𝐧𝐝𝐞𝐫𝐰𝐡𝐞𝐥𝐦𝐢𝐧𝐠. 𝐈𝐭 𝐝𝐨𝐞𝐬 𝐰𝐨𝐫𝐤 𝐚𝐬 𝐚 𝐝𝐞𝐜𝐞𝐧𝐭 𝐡𝐞𝐚𝐭 Show more
