Klairs fundamental mist and watery oil drop

The Klairs fundamental line is composed of a mist, a serum, an eye gel, and an eye cream. I’ve been testing them for a while. For today’s post, I will the fundamental mist and watery oil drop. Both of them are very hydrating. Let’s start with the mist 

Klairs fundamental ampule mist

This mist is a toner/essence in a spray version. It is mainly made of humectants derived from botanical extracts. 


Butylene glycol, Luffa Cylindrica (cucumber family), Oryza sativa (rice extract), Hibiscus Esculentus fruit extract (Okra), trehalose, hyaluronic acid and Laminaria Japonica Extract (a seaweed). 

The humectants in this formula are mainly derived from plant extracts that are not fragrant with few scientific works. In general botanical extracts contain complex sugars that are humectants.

Skin-soothing ingredients

Artemisia Vulgaris (Mugwort), and Panthenol.  

Mugwort seems to be skin soothing and would induce the up-regulation (or synthesis) of filaggrin. Filaggrin is a precursor to our natural humectants in the skin. But the literature is scarce. 


Tea extract (Camellia Sinensis Leaf Water) and probably the other botanical extracts. 

The main antioxidants are the water extract from tea leaves. Tea contains polyphenols that are antioxidants. It is interesting but it would have been better to have the polyphenol.  


Ceramide NP

Ceramides are one of the building blocks of the skin barrier. They are always beneficial. 

Notorious allergen 

Mugwort could be one as the other botanical extract. But there is no fragrant component and fragrance in this formula 

My thoughts

Most of the ingredients are botanicals with a few scientific data. Therefore, I cannot judge their potential antioxidant and skin-soothing properties. However, hydration is something easy to test at home. A hydrating product should plump up the skin very rapidly but the hydration will stay for a long time without emollient and this toner is amazingly hydrating. It manages to feel lightweight while infusing the skin barrier with water. I really love it. I also find the mist very convenient to spray your face as soon as you go out of the shower. 

Klairs Fundamental Watery Oil Drop

Watery oil drop is a very hydrating serum. It feels like an oil but doesn’t have any.


Glycerin, Butylene Glycol, Oryza Sativa (Rice) Extract, Sodium Hyaluronate, Arginine, Laminaria Japonica Extract, Sorbitol. 

I am guessing that the strong humectant properties are coming from the glycerin and the rice extracts. Rice extracts are rich in starch aka sugars.   

Skin-soothing ingredients

Bifida Ferment Extract, Aspergillus/Rice Ferment Extract, Dipotassium Glycyrrhizate (licorice), Copper Tripeptide-1. I have already talked about Bidida ferment (here). 

Bifida is a bacteria that have some scientific literature (not a lot) to show that it is anti-inflammatory. Aspergillus is a fungus naturally found on rice. Fermentation is a metabolic process that oxidizes sugars, in general. Here it is done by aspergillus from rice. I tell you a bit more in my video.


Camellia Sinensis Leaf Extract, Tocopheryl Acetate or vitamin E. Nothing wrong here both are excellent antioxidants.  


Ceramide NP.  


Acetyl Hexapeptide-8 (Argireline). This peptide supposedly has a botox like effect. 

Notorious allergen

This formula is fragrance-free and looks safe. There are less botanical extracts than the mist, hence it is safer. 

My thoughts

As the Mist this serum is extremely hydrating and I love love it. Despite the name, it doesn’t have any oils but the texture is a bit reminiscent of oil. It is very pleasant. I love a very hydrating serum especially when it is colder. It is a great one that I will repurchase. If you want to know what I think of the gel and eye cream check my Instagram post: https://www.instagram.com/p/B5WN7lRosbN/.

Watch my video to know more.  

Thank you for your time. 



doi: 10.3390/ijms18091948 

PMID: 23752034 

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