What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethyl Isosorbide
SolventEthoxydiglycol
HumectantAlpha-Arbutin
Antioxidant
Lactic Acid
Buffering
Pentylene Glycol
Skin Conditioning
Ferulic Acid
Antimicrobial
Sodium Hyaluronate
Humectant
4-Butylresorcinol
Antioxidant
Hydroxyethylcellulose
Emulsion StabilisingTriethanolamine
BufferingPEG/PPG-17/6 Copolymer
SolventIsoceteth-20
EmulsifyingXanthan Gum
EmulsifyingLecithin
Emollient
Sclerotium Gum
Emulsion StabilisingPullulan
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningTrisodium Ethylenediamine Disuccinate
Water, Dimethyl Isosorbide, Ethoxydiglycol, Alpha-Arbutin, Lactic Acid, Pentylene Glycol, Ferulic Acid, Sodium Hyaluronate, 4-Butylresorcinol, Hydroxyethylcellulose, Triethanolamine, PEG/PPG-17/6 Copolymer, Isoceteth-20, Xanthan Gum, Lecithin, Sclerotium Gum, Pullulan, Phenoxyethanol, Ethylhexylglycerin, Trisodium Ethylenediamine Disuccinate
Water
Skin ConditioningPropylene Glycol
Humectant
Butylene Glycol
Humectant
Glycerin
Humectant
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Aloe Barbadensis Leaf Extract
Emollient
Ascorbic Acid
Antioxidant
Niacinamide
Smoothing
Centella Asiatica Extract
Cleansing
Kojic Acid
Antioxidant
Dipotassium Glycyrrhizate
Humectant
Polysorbate 20
Emulsifying
Hyaluronic Acid
Humectant
Neopentyl Glycol Diheptanoate
EmollientFerulic Acid
Antimicrobial
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningHydroxyethylcellulose
Emulsion StabilisingXanthan Gum
EmulsifyingTocopheryl Acetate
Antioxidant
4-Butylresorcinol
Antioxidant
Water, Propylene Glycol, Butylene Glycol, Glycerin, 3-O-Ethyl Ascorbic Acid, Aloe Barbadensis Leaf Extract, Ascorbic Acid, Niacinamide, Centella Asiatica Extract, Kojic Acid, Dipotassium Glycyrrhizate, Polysorbate 20, Hyaluronic Acid, Neopentyl Glycol Diheptanoate, Ferulic Acid, Phenoxyethanol, Ethylhexylglycerin, Hydroxyethylcellulose, Xanthan Gum, Tocopheryl Acetate, 4-Butylresorcinol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
This ingredient is also known as rucinol. It's an antioxidant and one of the best-studied tyrosinase inhibitors (skin brightener) in cosmetic chemistry.
This ingredient works in a few complimentary ways:
In head-to-head biochemical assays, it outperformed kojic acid, arbutin, and even hydroquinone at slowing melanin production.
Clinically, 0.1% has shown to improve melasma visibly after just 4 weeks. Another liposome-encapsulated version performed similarly well and an Indian study on 0.3% showed significant melasma reduction over 8 weeks with no adverse events reported.
This ingredient is generally well-tolerated. A very small amount of people have experienced mild dryness or peeling at a higher concentration (0.3%).
According to a manufacturer, this ingredient is sensitive to air. Good formulations should account for this to keep your rucinol effective.
Be sure to also check out Thiamidol, another "hydroquinone alternative".
Learn more about 4-ButylresorcinolEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinFerulic Acid is a plant based antioxidant that can be naturally found in the cell walls of grains like rice, oats, and corn. It has antioxidant and antimicrobial properties, and has the ability to boost the performance of other antioxidants as well.
A well-known study found that adding Ferulic Acid to a solution of Vitamins C and E doubled the photoprotection of skin. This is why you'll often see it paired with Vitamin C or Vitamin E serums rather than sold on its own.
A 2025 review of 18 human studies found that using Ferulic Acid (0.5-1%) daily for one to three months showed improvements in:
As far as allergies go, Ferulic acid is generally well-tolerated but can cause an allergic reaction in very rare cases. It's also worth noting that Ferulic acid is often extracted from plant sources like rice bran or wheat bran, so be sure to path test if you have known grain allergies.
Outside of skincare, researchers are also looking into Ferulic Acid for its potential benefits in areas like diabetes, Alzheimer's, and heart health.
Learn more about Ferulic AcidHydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
This ingredient helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.
This ingredient can also be found in pill medicines to help our bodies digest other ingredients.
Learn more about HydroxyethylcellulosePhenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Learn more about PhenoxyethanolWater. 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 WaterXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan Gum
