CHI Haircare Keratin Silk Infusion Keratin and Silk Reconstructing Complex Versus Nature Republic Argan Essential Deep Care Hair Essence
Updated on November 19, 2024
Overview
What they are
These products are both reef safe leave-in treatments. They have a total of 9 ingredients in common
Suited For
They're both likely to be good for dry skin, sensitive skin, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, parabens or sulfates
What's Inside
They both contain common allergens, fragrances, oils and silicones
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
CHI Haircare Keratin Silk Infusion Keratin and Silk Reconstructing Complex 22 ingredients
Nature Republic Argan Essential Deep Care Hair Essence 18 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
CHI Haircare Keratin Silk Infusion Keratin and Silk Reconstructing Complex 22 ingredients
Nature Republic Argan Essential Deep Care Hair Essence 18 ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Cyclopentasiloxane
Emollient
Cyclotetrasiloxane
Emollient
Dimethiconol
Emollient
Keratin Amino Acids
Skin ConditioningHydrolyzed Silk
Humectant
Argania Spinosa Kernel Oil
Emollient
Simmondsia Chinensis Seed Oil
Emollient
Glycerin
Humectant
Hydrolyzed Ceratonia Siliqua Seed Extract
Skin ConditioningZea Mays Starch
AbsorbentGuar Hydroxypropyltrimonium Chloride
Skin ConditioningPolyquaternium-7
C12-15 Alkyl Benzoate
AntimicrobialPhenoxyethanol
Preservative
Parfum
Masking
Hexyl Cinnamal
Perfuming
Linalool
Perfuming
Butylphenyl Methylpropional
Perfuming
Geraniol
Perfuming
Citronellol
Perfuming
Limonene
Perfuming
Citral
Perfuming
Cyclopentasiloxane, Cyclotetrasiloxane, Dimethiconol, Keratin Amino Acids, Hydrolyzed Silk, Argania Spinosa Kernel Oil, Simmondsia Chinensis Seed Oil, Glycerin, Hydrolyzed Ceratonia Siliqua Seed Extract, Zea Mays Starch, Guar Hydroxypropyltrimonium Chloride, Polyquaternium-7, C12-15 Alkyl Benzoate, Phenoxyethanol, Parfum, Hexyl Cinnamal, Linalool, Butylphenyl Methylpropional, Geraniol, Citronellol, Limonene, Citral
Cyclopentasiloxane
Emollient
Dimethicone
Emollient
Disiloxane
Skin Conditioning
Trisiloxane
Skin Conditioning
Argania Spinosa Kernel Oil
Emollient
C12-15 Alkyl Benzoate
AntimicrobialPEG-10
HumectantTocopheryl Acetate
Antioxidant
Rosa Canina Fruit Oil
Emollient
Camellia Japonica Seed Oil
Emollient
Oenothera Biennis Oil
Emollient
Silk Powder
Skin ConditioningParfum
Masking
Citronellol
Perfuming
Limonene
Perfuming
Hexyl Cinnamal
Perfuming
Butylphenyl Methylpropional
Perfuming
Linalool
Perfuming
Cyclopentasiloxane, Dimethicone, Disiloxane, Trisiloxane, Argania Spinosa Kernel Oil, C12-15 Alkyl Benzoate, PEG-10, Tocopheryl Acetate, Rosa Canina Fruit Oil, Camellia Japonica Seed Oil, Oenothera Biennis Oil, Silk Powder, Parfum, Citronellol, Limonene, Hexyl Cinnamal, Butylphenyl Methylpropional, Linalool
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
You may know this ingredient as argan oil. Argan Oil has antioxidant, hydrating, and soothing properties.
Studies have shown argan oil can help fight again radical damage from the sun. This makes it effective at preventing hyperpigmentation.
Large amounts of vitamin E found in argan oil helps the skin retain water. Argan oil also contains fatty acids such as linoleic acid, oleic acid, and palmitic acid. It is also a good source of lipids.
Another benefit of argan oil is skin-soothing. It can help reduce inflammation-related skin symptoms.
Argan Oil is effective at regulating sebum production in pores. This can make it effective at treating hormonal acne.
Traditionally, argan oil was used for its antibacterial and antifungal properties. However, argan oil contains fatty acids that may make it not fungal-acne safe.
Argan Trees are native to Morocco.
Learn more about Argania Spinosa Kernel OilButylphenyl Methylpropional is a synthetic fragrance. You might know it as "lilial". The scent of this ingredient is floral-like and similar to the scent of lily flowers.
In March of 2022, the EU banned this ingredient in both rinse-off and leave-on products. This is because research found Butylphenyl Methylpropional to disrupt fertility in rats.
This ingredient is also a known EU allergen, meaning it is likely to cause an allergic reaction. Irritated skin can be damaging.
We always recommend speaking with a professional if you have any concerns or questions about this ingredient.
Learn more about Butylphenyl MethylpropionalC12-15 Alkyl Benzoate is made up of Benzoic Acid and long chain alcohols. It has a low molecular weight.
C12-15 Alkyl Benzoate is an emollient and texture enhancer. Due to its solubility, it is often used in sunscreens to help evenly distribute active ingredients.
As an emollient, C12-15 Alkyl Benzoate helps soften and hydrate your skin. Emollients create a film on your skin that traps moisture within.
This ingredient has been reported to cause eye irritation.
Learn more about C12-15 Alkyl BenzoateCitronellol is used to add fragrance/parfum to a product. It is often derived from plants such as roses. In fact, it can be found in many essential oils including geranium, lavender, neroli, and more. The scent of Citronellol is often described as "fresh, grassy, and citrus-like".
Since the Citronellol molecule is already unstable, Citronellol becomes irritating on the skin when exposed to air.
Citronellol is a modified terpene. Terpenes are unsaturated hydrocarbons found in plants. They make up the primary part of essential oils.
Citronellol is not able to be absorbed into deeper layers of the skin. It has low permeability,
Citronellol is also a natural insect repellent.
Learn more about CitronellolCyclopentasiloxane, or D5, is a silicone used to improve texture of products and trap moisture.
D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.
It is also an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.
Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.
Learn more about CyclopentasiloxaneHexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.
This ingredient is a known EU allergen and may sensitize the skin. The EU requires this ingredient to be listed separately on an ingredients list.
Hexyl Cinnamal is not water soluble but is soluble in oils.
Learn more about Hexyl CinnamalLimonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term '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.
Learn more about LimoneneLinalool 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 ParfumIngredient Ratings
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