Modern Chemistry By Boots Modern Chemistry Restore Hydrogel Sleep Mask Versus TONYMOLY Mask Melt Multi-Zone Firming Overnight Mask
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
HumectantDipropylene Glycol
HumectantNiacinamide
SmoothingCaprylic/Capric Triglyceride
MaskingCetyl Ethylhexanoate
EmollientCeratonia Siliqua Gum
EmollientChondrus Crispus
MaskingChondrus Crispus Powder
AbrasiveHydroxyacetophenone
AntioxidantGlyceryl Stearate
EmollientPEG-100 Stearate
SurfactantBetaine
HumectantButylene Glycol
HumectantHydrolyzed Collagen
EmollientCellulose Gum
Emulsion StabilisingCaprylyl Glycol
EmollientPotassium Chloride
Sodium Polyacrylate
Absorbent1,2-Hexanediol
Skin ConditioningHydrolyzed Hyaluronic Acid
HumectantButyrospermum Parkii Butter
Skin ConditioningHydrogenated Polydecene
EmollientEthylhexylglycerin
Skin ConditioningSucrose
HumectantAdenosine
Skin ConditioningTrideceth-6
EmulsifyingIsopentyldiol
HumectantC11-13 Isoparaffin
SolventDipotassium Glycyrrhizate
HumectantTrifolium Pratense Flower Extract
AstringentCollagen Extract
Skin ConditioningDisodium EDTA
Water, Glycerin, Dipropylene Glycol, Niacinamide, Caprylic/Capric Triglyceride, Cetyl Ethylhexanoate, Ceratonia Siliqua Gum, Chondrus Crispus, Chondrus Crispus Powder, Hydroxyacetophenone, Glyceryl Stearate, PEG-100 Stearate, Betaine, Butylene Glycol, Hydrolyzed Collagen, Cellulose Gum, Caprylyl Glycol, Potassium Chloride, Sodium Polyacrylate, 1,2-Hexanediol, Hydrolyzed Hyaluronic Acid, Butyrospermum Parkii Butter, Hydrogenated Polydecene, Ethylhexylglycerin, Sucrose, Adenosine, Trideceth-6, Isopentyldiol, C11-13 Isoparaffin, Dipotassium Glycyrrhizate, Trifolium Pratense Flower Extract, Collagen Extract, Disodium EDTA
Water
Skin ConditioningGlycerin
HumectantButylene Glycol
HumectantMethylpropanediol
SolventNiacinamide
SmoothingCaprylic/Capric Triglyceride
MaskingCetyl Ethylhexanoate
EmollientCeratonia Siliqua Gum
EmollientDipropylene Glycol
HumectantChondrus Crispus Powder
AbrasiveTrehalose
HumectantHydroxyacetophenone
AntioxidantChondrus Crispus
MaskingBetaine
HumectantErythritol
HumectantButyrospermum Parkii Butter
Skin ConditioningCaprylyl Glycol
EmollientChondrus Crispus Extract
Skin ConditioningJojoba Esters
EmollientGlyceryl Stearates
EmollientHydroxypropyl Methylcellulose
Emulsion StabilisingCetyl Alcohol
EmollientStearyl Alcohol
EmollientGlyceryl Stearate
EmollientCellulose Gum
Emulsion StabilisingPotassium Chloride
Sodium Stearoyl Glutamate
CleansingHelianthus Annuus Seed Wax
Skin ConditioningXanthan Gum
EmulsifyingAdenosine
Skin ConditioningSucrose
HumectantPolyglycerin-3
Humectant1,2-Hexanediol
Skin ConditioningDipotassium Glycyrrhizate
HumectantTocopherol
AntioxidantCollagen Extract
Skin ConditioningAcetyl Hexapeptide-8
HumectantDisodium EDTA
Water, Glycerin, Butylene Glycol, Methylpropanediol, Niacinamide, Caprylic/Capric Triglyceride, Cetyl Ethylhexanoate, Ceratonia Siliqua Gum, Dipropylene Glycol, Chondrus Crispus Powder, Trehalose, Hydroxyacetophenone, Chondrus Crispus, Betaine, Erythritol, Butyrospermum Parkii Butter, Caprylyl Glycol, Chondrus Crispus Extract, Jojoba Esters, Glyceryl Stearates, Hydroxypropyl Methylcellulose, Cetyl Alcohol, Stearyl Alcohol, Glyceryl Stearate, Cellulose Gum, Potassium Chloride, Sodium Stearoyl Glutamate, Helianthus Annuus Seed Wax, Xanthan Gum, Adenosine, Sucrose, Polyglycerin-3, 1,2-Hexanediol, Dipotassium Glycyrrhizate, Tocopherol, Collagen Extract, Acetyl Hexapeptide-8, Disodium EDTA
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.
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 preservatives
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineBetaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration.
Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte.
Some studies suggest betaine may support making skin tone more even.
Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability.
Betaine is also known as trimethylglycine.
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 GlycolThis ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients.
Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL).
In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!).
Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo.
Shea butter also contains vitamins A and E which may contribute to antioxidant activity.
While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement.
This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize.
Learn more about Butyrospermum Parkii ButterCaprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.
Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.
In practice, that translates to a long shelf life and a consistently elegant skin feel.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.
Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.
This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.
This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%.
Learn more about Caprylic/Capric TriglycerideCaprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolCellulose Gum is a water-soluble polymer that comes from cellulose. It is used to change the texture of a product and to help stabilize emulsions.
As an emulsifier, cellulose gum specifically thicken the texture of water-based products.
This ingredient is considered hypoallergenic and non-toxic. Cellulose Gum can be found in cosmetics, food, and other household goods such as paper products.
Learn more about Cellulose GumCeratonia Siliqua Gum is extracted from the seeds of the carob tree. You might know this ingredient as Carob Gum or Locust Bean Gum. It is used to stabilize other ingredients and improve the texture of products.
Carob gum is made up of long-chain polysaccharides. This makes it a natural thickener.
Yes! This ingredient comes from the seeds of a tree. The name 'Locust Bean Gum' can be misleading.
Learn more about Ceratonia Siliqua GumCetyl Ethylhexanoate is an emollient ester. It comes from cetearyl alcohol and 2-ethylhexanoic acid.
Cetyl Ethylhexanoate is an emollient that adds a velvety feel to skin without being greasy or oily. Emollients help trap moisture into your skin, keeping your skin soft and hydrated.
Chondrus Crispus is a red algae native to the northern Atlantic ocean.
It is rich in antioxidants. The polysaccharides, peptides, and amino acid content helps moisturize skin.
Antioxidants present in chondrus crispus include lutein and zeaxanthin. Lutein has the ability to filter blue light from screens.
Learn more about Chondrus CrispusChondrus Crispus Powder is an exfoliant.
Collagen extract is derived from parts of animals. It has skin conditioning properties and is mostly comprised of glycine, proline, and hydroxypoline. These are amino acids.
While our skin does have collagen, this ingredient is not used by the skin for anti-aging. Applying collagen topically has not been linked to helping with collagen loss in skin. All the benefits of collagen are related to hydration.
This ingredient will not increase sun sensitivity, but you should always wear sunscreen during the day.
Learn more about Collagen ExtractDipotassium Glycyrrhizate comes from licorice root.
Extracts of licorice have demonstrated to have antibacterial, anti‐inflammatory, antiviral, antioxidant properties.
One component, glabridin, has extra potent antioxidant and soothing properties. It has also been found to block pigmentation from UVB rays in guinea pigs.
Licorice Root also contains a flavonoid. Flavonoids are a natural substance from in plants. Flavonoids also have antioxidant properties.
Another component, glycyrrhizin, has been found to have anti-inflammatory and antimicrobial benefits. This may make licorice root extract effective at treating acne. However, more research is needed to support this.
Liquiritin is one of the flavone compounds found in licorice. It has been found to help lighten skin by preventing tyrosinase from reacting with tyrosine. When the two react, protein is converted to melanin. Melanin is the substance in your body that gives your features pigmentation.
Licorice root is native to Southern Europe and Asia. It has been used in traditional Chinese medicine to help with respiratory issues.
Learn more about Dipotassium GlycyrrhizateDipropylene Glycol is a synthetically created humectant, stabilizer, and solvent.
This ingredient helps:
Dipropylene glycol is technically an alcohol, but it belongs to the glycol family (often considered part of the ‘good’ alcohols). This means it is hydrating and gentle on skin unlike drying solvent alcohols like denatured alcohol.
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 GlycolDisodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
Learn more about Disodium EDTAGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinGlyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.
Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.
This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.
A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.
Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateHydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.
Though naturally occuring in Norwegian spruce needles, this ingredient is usually synthetically created.
This ingredient is not irritating or sensitizing. Recent research also suggests it may have skin-brightening effects through tyrosinase inhibition.
Learn more about HydroxyacetophenoneNiacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Learn more about NiacinamideWe don't have a description for Potassium Chloride yet.
Sucrose is a natural sugar found in fruits, vegetables, and nuts. It is the main constituent of white sugar.
In skincare, sucrose is a humectant and can be a mild exfoliant.
Sucrose is hydrophilic, meaning it attracts water. This makes it an effective humectant and helps hydrate the skin.
Studies show sugars may worsen acne-prone skin due to it disrupting the skin's natural biome. We recommend speaking with a professional if you have any concerns.
In some products such as body scrubs, sucrose is used as an gentle exfoliant.
The term 'sucrose' comes from the french word for sugar, 'sucre'.
Learn more about SucroseWater. 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