BondiBoost Rapid Repair Bond Builder+ Leave-In Mask Versus K18 Hair Leave-In Molecular Repair Hair Mask
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Aloe Barbadensis Leaf Juice
Skin ConditioningWater
Skin ConditioningStearyl Alcohol
EmollientCetyl Alcohol
EmollientPropanediol
SolventOleyl Lactate
EmollientBehentrimonium Chloride
PreservativePolysorbate 20
EmulsifyingDicaprylyl Ether
EmollientNeopentyl Glycol Diheptanoate
EmollientDiethylhexyl Maleate
EmollientIsodecyl Oleate
EmollientIsostearyl Palmitate
EmollientSulfated Castor Oil
CleansingPolyglyceryl-3 Betainate Malate
Isododecane
EmollientDipropylene Glycol
HumectantLauryl Glucoside
CleansingParfum
MaskingPolyglyceryl-6 Laurate
EmulsifyingHydrolyzed Soy Protein
HumectantHydroxypropyl Bis-Hydroxyethyldimonium Chloride
HumectantCocodimonium Hydroxypropyl Hydrolyzed Wheat Protein
CleansingGlycerin
HumectantLinoleic Acid
CleansingVitis Vinifera Seed Oil
EmollientPentylene Glycol
Skin ConditioningCaprylyl Glycol
EmollientSodium Benzoate
MaskingLinum Usitatissimum Seed Oil
PerfumingHydroxypropyl Guar Hydroxypropyltrimonium Chloride
Myristyl Glucoside
CleansingPvp
Emulsion StabilisingPotassium Sorbate
PreservativeCocos Nucifera Oil
MaskingGlucose
HumectantPanthenol
Skin ConditioningZinc PCA
HumectantOleic Acid
EmollientMacadamia Integrifolia Seed Oil
Skin ConditioningTocopheryl Acetate
AntioxidantEthylhexylglycerin
Skin ConditioningBenzyl Salicylate
PerfumingHydrolyzed Adansonia Digitata Extract
EmollientLinalool
PerfumingPalmitic Acid
EmollientCitronellol
PerfumingBenzyl Benzoate
AntimicrobialHexamethylindanopyran
MaskingStearic Acid
CleansingAllium Cepa Bulb Extract
Skin ConditioningAlthaea Officinalis Root Extract
Skin ConditioningArginine Hcl
Skin ConditioningCitrulline
Skin ConditioningGlucosamine Hcl
Niacinamide
SmoothingOrnithine Hcl
Skin ConditioningPanax Ginseng Root Extract
EmollientPyridoxine Hcl
Skin ConditioningCitric Acid
BufferingBenzyl Alcohol
PerfumingLimonene
PerfumingLinolenic Acid
CleansingBiotin
AntiseborrhoeicSorbic Acid
PreservativeBenzoic Acid
MaskingUlmus Fulva Bark Extract
MoisturisingTocopherol
AntioxidantPolyaminopropyl Biguanide
PreservativeAloe Barbadensis Leaf Juice, Water, Stearyl Alcohol, Cetyl Alcohol, Propanediol, Oleyl Lactate, Behentrimonium Chloride, Polysorbate 20, Dicaprylyl Ether, Neopentyl Glycol Diheptanoate, Diethylhexyl Maleate, Isodecyl Oleate, Isostearyl Palmitate, Sulfated Castor Oil, Polyglyceryl-3 Betainate Malate, Isododecane, Dipropylene Glycol, Lauryl Glucoside, Parfum, Polyglyceryl-6 Laurate, Hydrolyzed Soy Protein, Hydroxypropyl Bis-Hydroxyethyldimonium Chloride, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Glycerin, Linoleic Acid, Vitis Vinifera Seed Oil, Pentylene Glycol, Caprylyl Glycol, Sodium Benzoate, Linum Usitatissimum Seed Oil, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Myristyl Glucoside, Pvp, Potassium Sorbate, Cocos Nucifera Oil, Glucose, Panthenol, Zinc PCA, Oleic Acid, Macadamia Integrifolia Seed Oil, Tocopheryl Acetate, Ethylhexylglycerin, Benzyl Salicylate, Hydrolyzed Adansonia Digitata Extract, Linalool, Palmitic Acid, Citronellol, Benzyl Benzoate, Hexamethylindanopyran, Stearic Acid, Allium Cepa Bulb Extract, Althaea Officinalis Root Extract, Arginine Hcl, Citrulline, Glucosamine Hcl, Niacinamide, Ornithine Hcl, Panax Ginseng Root Extract, Pyridoxine Hcl, Citric Acid, Benzyl Alcohol, Limonene, Linolenic Acid, Biotin, Sorbic Acid, Benzoic Acid, Ulmus Fulva Bark Extract, Tocopherol, Polyaminopropyl Biguanide
Water
Skin ConditioningAlcohol Denat.
AntimicrobialPropylene Glycol
HumectantCetearyl Alcohol
EmollientDicaprylyl Ether
EmollientCetyl Esters
EmollientBehentrimonium Chloride
PreservativePolysorbate 20
EmulsifyingSh-Oligopeptide-78
Hydrolyzed Wheat Protein
Skin ConditioningHydrolyzed Wheat Starch
Skin ConditioningIsopropyl Alcohol
SolventTocopherol
AntioxidantPhenoxyethanol
PreservativePotassium Sorbate
PreservativeCitric Acid
BufferingParfum
MaskingGeraniol
PerfumingLinalool
PerfumingHexyl Cinnamal
PerfumingBenzyl Alcohol
PerfumingWater, Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, Sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Parfum, Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
This ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners.
It does not cause irritation or sensitization in leave-on products at 1-5%.
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Benzyl Alcohol has both antibacterial and antioxidant properties. These properties help lengthen the shelf life of products. Benzyl Alcohol is a solvent and helps dissolve other ingredients. It can also improve the texture and spreadability.
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is an astringent alcohol.
Using high concentrations of these alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.
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 Benzyl AlcoholCitric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Read more about some other popular AHA's here:
Learn more about Citric AcidDicaprylyl Ether is created from caprylic acid. It is a texture-enhancer and emollient.
As an emollient, Dicaprylyl Ether is non-comedogenic. It helps soften and smooth the skin by creating a barrier on top. This barrier helps trap moisture in, helping to hydrate the skin.
Dicaprylyl Ether gives a non-greasy feel and better spreadability to products.
Learn more about Dicaprylyl EtherLinalool 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 ParfumPolysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Learn more about Polysorbate 20Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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. Remember to stay hydrated!
Learn more about Water