Updated on April 16, 2025
Overview
What they are
These products are both cruelty-free and reef safe toners. They have a total of 8 ingredients in common
Cool Features
They both contain PHA
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, 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
S.NATURE Aqua Oasis Toner 25 ingredients
ISOI PHA First Tonic Essence 27 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
S.NATURE Aqua Oasis Toner 25 ingredients
ISOI PHA First Tonic Essence 27 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDipropylene Glycol
MaskingButylene Glycol
Humectant
Glycerin
Humectant
1,2-Hexanediol
Skin Conditioning
Betaine
Humectant
Panthenol
Skin Conditioning
Allantoin
Skin Conditioning
Carica Papaya Fruit Extract
Skin ConditioningGluconolactone
Skin Conditioning
Xylitylglucoside
Humectant
Anhydroxylitol
Humectant
Xylitol
Humectant
Sodium Hyaluronate
Humectant
Glucose
Humectant
Papain
Skin ConditioningHydroxypropyltrimonium Hyaluronate
Sodium Acetylated Hyaluronate
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Hyaluronic Acid
Humectant
Hydrolyzed Sodium Hyaluronate
Skin Conditioning
Sodium Hyaluronate Crosspolymer
Humectant
Potassium Hyaluronate
Skin ConditioningGlyceryl Acrylate/Acrylic Acid Copolymer
HumectantPvm/Ma Copolymer
Emulsion StabilisingWater, Dipropylene Glycol, Butylene Glycol, Glycerin, 1,2-Hexanediol, Betaine, Panthenol, Allantoin, Carica Papaya Fruit Extract, Gluconolactone, Xylitylglucoside, Anhydroxylitol, Xylitol, Sodium Hyaluronate, Glucose, Papain, Hydroxypropyltrimonium Hyaluronate, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Potassium Hyaluronate, Glyceryl Acrylate/Acrylic Acid Copolymer, Pvm/Ma Copolymer
Water
Skin ConditioningGlycerin
Humectant
Betaine
Humectant
Vitis Vinifera Fruit Extract
Skin ConditioningCitrus Aurantium Dulcis Fruit Extract
MaskingPyrus Malus Fruit Extract
Skin Conditioning
Citrus Australasica Fruit Extract
Antioxidant
Citrus Limon Fruit Extract
Masking
Castanea Crenata Shell Extract
Skin ConditioningSalix Alba Bark Extract
Astringent
Centella Asiatica Extract
Cleansing
Gluconolactone
Skin Conditioning
Euterpe Oleracea Fruit Extract
Vaccinium Angustifolium Fruit Extract
Skin Protecting
Phyllanthus Emblica Extract
Skin ConditioningVaccinium Macrocarpon Fruit Extract
AstringentAllantoin
Skin Conditioning
Panthenol
Skin Conditioning
Xanthan Gum
EmulsifyingCitrus Aurantium Bergamia Fruit Oil
Masking
Calendula Officinalis Flower Extract
Masking
Butylene Glycol
Humectant
1,2-Hexanediol
Skin Conditioning
Arginine
Masking
Scutellaria Baicalensis Root Extract
AstringentPaeonia Suffruticosa Root Extract
Skin ProtectingGlycyrrhiza Glabra Root Extract
Bleaching
Water, Glycerin, Betaine, Vitis Vinifera Fruit Extract, Citrus Aurantium Dulcis Fruit Extract, Pyrus Malus Fruit Extract, Citrus Australasica Fruit Extract, Citrus Limon Fruit Extract, Castanea Crenata Shell Extract, Salix Alba Bark Extract, Centella Asiatica Extract, Gluconolactone, Euterpe Oleracea Fruit Extract, Vaccinium Angustifolium Fruit Extract, Phyllanthus Emblica Extract, Vaccinium Macrocarpon Fruit Extract, Allantoin, Panthenol, Xanthan Gum, Citrus Aurantium Bergamia Fruit Oil, Calendula Officinalis Flower Extract, Butylene Glycol, 1,2-Hexanediol, Arginine, Scutellaria Baicalensis Root Extract, Paeonia Suffruticosa Root Extract, Glycyrrhiza Glabra Root Extract
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.Â
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesÂ
Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinBetaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
This ingredient is best for improving hydration and soothing irritated skin. Studies also show it helps even out skin tone.
Fun fact: Betaine is naturally created in the skin and body. The kind found within cosmetic products can be either plant-derived or synthetic.
Learn more about BetaineButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolGluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs.
When applied, Gluconolactone has the same affect on skin as AHAs such as lactic acid. It helps dissolve the dead skin cells in the top layer of your skin. This improves texture and brightens the skin.
PHAs are more gentle than AHAs due to their larger structure. They do not penetrate as deeply as AHAs and take a longer time to dissolve dead cells. Studies show PHAs do not cause as much irritation.
Gluconolactone has some interesting properties:
In a 2004 study, Gluconolactone was found to prevent UV damage in mouse skin cells and has not been found to increase sun sensitivity. However, we still recommend wearing SPF daily.
This ingredient is is an created by reacting gluconic acid with an alcohol.
Learn more about GluconolactoneGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinPanthenol 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 PanthenolWater. 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 WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
S.NATURE Aqua Oasis Toner 25 ingredients
ISOI PHA First Tonic Essence 27 ingredients
