Overview
What it is
Hair serum with 40 ingredients that contains ceramides and hyaluronic acid
Cool Features
It is reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, brightening skin, sensitive skin and scar healing
Free From
It doesn't contain any common allergens, oils or parabens
Fun facts
Hair Theory Lab is from Japan.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
About this product
Ingredients List
Dive into the full list of ingredients.
Water
Skin ConditioningDimethicone
EmollientCetearyl Alcohol
EmollientButylene Glycol
HumectantHydrolyzed Collagen
EmollientHydrolyzed Egg Shell Membrane
HumectantHydrolyzed Wool Cuticle Protein
Skin ConditioningGlutamic Acid
HumectantSodium Lauroyl Glutamate
Hydroxypropyltrimonium Hydrolyzed Keratin
Skin ConditioningHydroxypropyltrimonium Hydrolyzed Silk
Skin ConditioningSodium Acetylated Hyaluronate
HumectantHydrolyzed Hyaluronic Acid
HumectantSodium Hyaluronate
HumectantHydroxypropyltrimonium Hyaluronate
Pisum Sativum Extract
Skin ConditioningAlgin
MaskingDipropylene Glycol
MaskingGamma-Docosalactone
Skin ConditioningCeramide Ng
Skin ConditioningCaprylic/Capric/Stearic Triglyceride
Skin ConditioningPhytosteryl Macadamiate
Skin ConditioningHeptanol
PerfumingCeteth-20
CleansingPPG-4-Ceteth-20
EmulsifyingSteartrimonium Chloride
PreservativeDicocodimonium Chloride
EmulsifyingC10-40 Isoalkylamidopropylethyldimonium Ethosulfate
Behentrimonium Methosulfate
Cetearyl Glucoside
EmulsifyingDimethiconol
EmollientAmodimethicone
Aminopropyl Dimethicone
Tamarindus Indica Seed Gum
Emulsion StabilisingDisodium EDTA
Isopropyl Alcohol
SolventPentylene Glycol
Skin ConditioningPhenoxyethanol
PreservativeSodium Benzoate
MaskingParfum
MaskingWater, Dimethicone, Cetearyl Alcohol, Butylene Glycol, Hydrolyzed Collagen, Hydrolyzed Egg Shell Membrane, Hydrolyzed Wool Cuticle Protein, Glutamic Acid, Sodium Lauroyl Glutamate, Hydroxypropyltrimonium Hydrolyzed Keratin, Hydroxypropyltrimonium Hydrolyzed Silk, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Pisum Sativum Extract, Algin, Dipropylene Glycol, Gamma-Docosalactone, Ceramide Ng, Caprylic/Capric/Stearic Triglyceride, Phytosteryl Macadamiate, Heptanol, Ceteth-20, PPG-4-Ceteth-20, Steartrimonium Chloride, Dicocodimonium Chloride, C10-40 Isoalkylamidopropylethyldimonium Ethosulfate, Behentrimonium Methosulfate, Cetearyl Glucoside, Dimethiconol, Amodimethicone, Aminopropyl Dimethicone, Tamarindus Indica Seed Gum, Disodium EDTA, Isopropyl Alcohol, Pentylene Glycol, Phenoxyethanol, Sodium Benzoate, Parfum
Key Ingredients
Benefits
Concerns
Ingredients Explained
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 WaterDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeCetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.
Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.
Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.
Learn more about Cetearyl AlcoholButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Hydrolyzed collagen has a misleading name because it is actually a mixture of various proteins/peptides. This ingredient has skin hydrating properties.
Collagen is the most abundant type of structural protein found in your body. In your skin, it is responsible for keeping it firm and youthful.
Hydrolyzed Collagen is created by breaking up proteins into smaller peptide bonds. These peptides act as humectants and emollients.
Humectants are great at holding onto water, keeping skin hydrated. Emollients create a thin barrier on the skin to prevent moisture from escaping.
There is ongoing debate about whether hydrolyzed collagen works because it increases skin hydration. Skin hydration is also linked to elasticity and the appearance of wrinkles.
Collagen or peptide ingredients can be used in the morning or night. They will not increase sun sensitivity, but you should always wear sunscreen during the day.
According to a manufacturer, this ingredient is a great hair conditioner as well.
This ingredient can be extracted from different sources, including:
Vegan collagen is derived from yeast, bacteria, or plant sources. Vegan collagen would go by a different INCI name, such as hydrolyzed soy protein.
The results are varied.
A study from 2021 found hydrolyzed collagen increased elasticity and improved wrinkles in 1,125 participants between age 20 and 70. Another study found increased skin thickness in participants between the ages of 45 to 59.
However, It is difficult to prove that oral collagen will end up working on your skin. Many of the studies using hydrolyzed collagen also add several vitamins and nutrients into the test mixture as well.
Further studies are needed at this time.
Learn more about Hydrolyzed CollagenWe don't have a description for Hydrolyzed Egg Shell Membrane yet.
We don't have a description for Hydrolyzed Wool Cuticle Protein yet.
Glutamic Acid is an amino acid that is found in all living organisms. Our bodies use this to help nerve cells in the brain communicate with other cells.
In cosmetics, glutamic acid is a famous humectant. It draws water from the air to your skin, keeping your skin hydrated (like hyaluronic acid).
An in-vitro study from 2024 found glutamic acid to play a role in inhibiting inflammation and thus a potential skin-soothing ingredient.
Other studies show it to be have potential wound healing, skin barrier repair, and hair growth properties.
Glutamic acid has poor solubility in water and other solvents.
Learn more about Glutamic AcidSodium Lauroyl Glutamate is the sodium salt from the lauric acid of glutamic acid.
It is a surfactant and helps cleanse the skin. Surfactants gather oil, dirt, and other pollutants from your skin so they may be washed away easily.
We don't have a description for Hydroxypropyltrimonium Hydrolyzed Keratin yet.
We don't have a description for Hydroxypropyltrimonium Hydrolyzed Silk yet.
Sodium Acetylated Hyaluronate is a type of Hyaluronic Acid.
Hyaluronic Acids help moisturize, soothe, and protect the skin.
Read about common types of Hyaluronic Acid here: Sodium Hyaluronate Hydrolyzed Hyaluronic Acid Hyaluronic Acid
Learn more about Sodium Acetylated HyaluronateHydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Low molecular weight HA has been shown to hydrate and increase elasticity of the skin. Increasing elasticity is also associated with reduction of wrinkle depth.
One study found topical low molecular weight hyaluronic acid may be considered for the treatment of rosacea in the adult population. However, we always recommend speaking with a professional about your skin concerns.
Hyaluronic acids are a humectant. This means they draw moisture from the air. Hyaluronic acids help moisturize, soothe, and protect the skin.
Read more about other common forms of hyaluronic acid:
Learn more about Hydrolyzed Hyaluronic 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 HyaluronateThis form of hyaluronic acid is produced through fermentation.
According to a manufacturer, it has a positive charge by ionic binding to help moisturize and give hair a smooth feel. This is why you'll find this ingredient in shampoos and body washes.
We don't have a description for Pisum Sativum Extract yet.
Algin is brown algae. Algae is an informal term for a group of aquatic organisms that can photosynthesize. It is estimated there are at least 30,000 types of Algae.
Algae contains antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.
Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.
Dipropylene Glycol helps dissolve and evenly distribute ingredients. It also helps decrease viscosity and thin out texture.
As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent.
Studies show Dipropylene Glycol is considered safe to use in skincare.
Learn more about Dipropylene GlycolWe don't have a description for Gamma-Docosalactone yet.
Ceramide NG is a type of Ceramide. The NG stands for a sphinganine base.
Ceramides are intercellular lipids naturally found in our skin that bonds dead skin cells together to create a barrier. They are known for their ability to hold water and thus are a great ingredient for dry skin.
Ceramides are an important building block for our skin barrier. A stronger barrier helps the skin look more firm and hydrated. By bolstering the skin ceramides act as a barrier against irritating ingredients. This can help with inflammation as well.
If you would like to eat ceramides, sweet potatoes contain a small amount.
Read more about other common types of ceramides here: Ceramide AP Ceramide EOP Ceramide NP
Learn more about Ceramide NgWe don't have a description for Caprylic/Capric/Stearic Triglyceride yet.
Phytosteryl Macadamiate comes from the fatty acids of Macadamia Seed Oil and an ester of phytosterol. Phytosterols are the plant-versions of cholesterol.
This ingredient helps provide hydration due to its high fatty acid property.
Heptanol is a fragrance.
We don't have a description for Ceteth-20 yet.
We don't have a description for PPG-4-Ceteth-20 yet.
Steartrimonium Chloride is a preservative.
We don't have a description for Dicocodimonium Chloride yet.
C10-40 Isoalkylamidopropylethyldimonium Ethosulfate is a type of sulfate.
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 MethosulfateCetearyl Glucoside is a surfactant and emulsifier. It can be produced from synthetic of natural sources of cetearyl alcohol and glucose.
Emulsifiers help prevent ingredients from separating, such as oils and waters. It can also be used to enhance the texture of products.
As a surfactant, Cetearyl Glucoside helps during the cleansing process. By gathering all the dirt and oils, it allows these molecules to be washed away easily.
Learn more about Cetearyl GlucosideDimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.
This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.
This water-soluble silicone is used for its hydrating and softening properties. It is used to add a silky feel to skincare products and has great benefits for haircare.
In haircare, this ingredient:
- Adds shine
- Protects color
- Offers thermal protection
- Boosts hair strength
- Does not build up as easily
Aminopropyl Dimethicone is a type of silicone.
Tamarindus Indica Seed Gum is from the seeds of Tamarindus indica. It is more commonly known as tamarind.
Tamarindus Indica Seed Gum is used as a texture enhancer, emulsifier, and skin conditioner.
When added to products, Tamarindus Indica Seed Gum helps thicken and create a gel-like texture.
Tamarindus Indica Seed Gum is a humectant. It helps draw moisture from the air to your skin. This keeps your skin hydrated.
Emulsion stabilizing ingredients help stabilize a product. They work by stabilizing two non-mixable ingredients. An example would be oil and water.
Learn more about Tamarindus Indica Seed GumDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAIsopropyl Alcohol is more commonly known as rubbing alcohol. It is most commonly used as a solvent, meaning it helps other ingredients dissolve.
This ingredient is an astringent alcohol. Astringent alcohols may also irritate skin as they high amounts may strip away your skin's natural oils.
Other types of astringent alcohols include:
According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.
Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.
Learn more about Isopropyl AlcoholPentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolPhenoxyethanol 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.
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 BenzoateParfum 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 ParfumReviews
No written reviews yet. Be the first to review this product.
Where it's from
Hair Theory Lab is a Japanese brand
Often compared with
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about us· Updated April 24, 2025 • Added by BlackCat808