Mary & May Vitamin C + Bifida Lotion Versus Simple Skincare Kind To Skin Hydrating Light Moisturiser
This brightening moisturizer is formulated around Bifida Ferment Lysate and Niacinamide to brighten dull-looking skin and strengthen the skin barrier.
This barrier-repair moisturizer is formulated around Panthenol and Borago Officinalis Seed Oil to strengthen the skin barrier and hydrate skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCaprylic/Capric Triglyceride
MaskingBifida Ferment Lysate
Skin ConditioningGlycerin
HumectantNiacinamide
SmoothingCetearyl Alcohol
EmollientDipropylene Glycol
HumectantAscorbic Acid
AntioxidantButylene Glycol
HumectantGlyceryl Stearate Se
EmulsifyingCetyl Ethylhexanoate
EmollientPolyglyceryl-3 Methylglucose Distearate
EmulsifyingTromethamine
BufferingHydroxyacetophenone
AntioxidantCarbomer
Emulsion StabilisingButyrospermum Parkii Butter
Skin ConditioningPalmitic Acid
EmollientStearic Acid
CleansingPanthenol
Skin ConditioningParfum
MaskingTocopheryl Acetate
Antioxidant1,2-Hexanediol
Skin ConditioningAdenosine
Skin ConditioningCaprylyl Glycol
EmollientDisodium EDTA
Pentylene Glycol
Skin ConditioningSodium Hyaluronate
HumectantSodium Hyaluronate Crosspolymer
HumectantHydrolyzed Hyaluronic Acid
HumectantHyaluronic Acid
HumectantEthylhexylglycerin
Skin ConditioningHydrolyzed Sodium Hyaluronate
Skin ConditioningWater, Caprylic/Capric Triglyceride, Bifida Ferment Lysate, Glycerin, Niacinamide, Cetearyl Alcohol, Dipropylene Glycol, Ascorbic Acid, Butylene Glycol, Glyceryl Stearate Se, Cetyl Ethylhexanoate, Polyglyceryl-3 Methylglucose Distearate, Tromethamine, Hydroxyacetophenone, Carbomer, Butyrospermum Parkii Butter, Palmitic Acid, Stearic Acid, Panthenol, Parfum, Tocopheryl Acetate, 1,2-Hexanediol, Adenosine, Caprylyl Glycol, Disodium EDTA, Pentylene Glycol, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Ethylhexylglycerin, Hydrolyzed Sodium Hyaluronate
Water
Skin ConditioningGlycerin
HumectantParaffinum Liquidum
EmollientPolyglyceryl-3 Methylglucose Distearate
EmulsifyingCetyl Palmitate
EmollientDimethicone
EmollientPanthenol
Skin ConditioningTocopheryl Acetate
AntioxidantBorago Officinalis Seed Oil
EmollientPantolactone
HumectantBisabolol
AntioxidantSodium Lactate
BufferingLactic Acid
BufferingSerine
MaskingUrea
BufferingSorbitol
HumectantAllantoin
Skin ConditioningSodium Chloride
MaskingPotassium Hydroxide
BufferingCarbomer
Emulsion StabilisingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingCetyl Alcohol
EmollientPentylene Glycol
Skin ConditioningDisodium EDTA
Methylparaben
PreservativePropylparaben
Preservative2-Bromo-2-Nitropropane-1,3-Diol
PreservativeMica
Cosmetic ColorantTitanium Dioxide
Cosmetic ColorantWater, Glycerin, Paraffinum Liquidum, Polyglyceryl-3 Methylglucose Distearate, Cetyl Palmitate, Dimethicone, Panthenol, Tocopheryl Acetate, Borago Officinalis Seed Oil, Pantolactone, Bisabolol, Sodium Lactate, Lactic Acid, Serine, Urea, Sorbitol, Allantoin, Sodium Chloride, Potassium Hydroxide, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetyl Alcohol, Pentylene Glycol, Disodium EDTA, Methylparaben, Propylparaben, 2-Bromo-2-Nitropropane-1,3-Diol, Mica, Titanium Dioxide
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
Learn more about CarbomerDisodium 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 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 PanthenolPentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
Learn more about Pentylene GlycolPolyglyceryl-3 Methylglucose Distearate is a plant-derived emulsifier whose only job is to keep the oily and watery parts of a formula blended so it doesn't separate into layers.
It's compatible with a wide-range of active ingredients and especially good at making emulsions survive heat/freeze cycles.
Typical use concentrations range from 2-3% and it works across a pH of 4.5-8.5.
This ingredient has been found safe to use in cosmetics and has a low irritation profile.
Because it's build on stearic acid, it may not be fungal acne safe. Stearic acid is a C18 fatty acid that falls within the range (C11-24) that Malassezia can feed on.
Learn more about Polyglyceryl-3 Methylglucose DistearateTocopheryl Acetate is a stable, shelf-friendly form of vitamin E.
Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.
It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.
One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.
Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.
Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.
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.
Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.
The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.
Most leave-on skincare keeps it at the lower end, often between 0.5-1%.
Learn more about Tocopheryl AcetateWater. 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