Sephora Collection Gentle Peeling Serum with Niacinamide + Exfoliating Lactic Acid Versus Sunday Riley Good Genes All-In-One Lactic Acid Treatment
Updated on October 05, 2023
Overview
What they are
These products are both reef safe . They have a total of 6 ingredients in common
Cool Features
They both contain AHA
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, parabens 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
Sephora Collection Gentle Peeling Serum with Niacinamide + Exfoliating Lactic Acid 24 ingredients
Sunday Riley Good Genes All-In-One Lactic Acid Treatment 32 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Sephora Collection Gentle Peeling Serum with Niacinamide + Exfoliating Lactic Acid 24 ingredients
Sunday Riley Good Genes All-In-One Lactic Acid Treatment 32 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDicaprylyl Carbonate
EmollientGlycerin
Humectant
Niacinamide
Smoothing
Propanediol
Solvent
Lactic Acid
Buffering
Pentylene Glycol
Skin ConditioningAmmonium Acryloyldimethyltaurate/Vp Copolymer
Squalane
Emollient
C14-22 Alcohols
Emulsion StabilisingSilica
Abrasive
Sodium Hydroxide
BufferingTrehalose
Humectant
Stearalkonium Hectorite
Gel FormingC12-20 Alkyl Glucoside
EmulsifyingGlyceryl Caprylate
EmollientTocopherol
Antioxidant
Maris Aqua
HumectantXanthan Gum
EmulsifyingPropylene Carbonate
SolventSodium Benzoate
Masking
Sodium Phytate
Phenethyl Alcohol
MaskingHydrolyzed Rhodophyceae Extract
Water, Dicaprylyl Carbonate, Glycerin, Niacinamide, Propanediol, Lactic Acid, Pentylene Glycol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Squalane, C14-22 Alcohols, Silica, Sodium Hydroxide, Trehalose, Stearalkonium Hectorite, C12-20 Alkyl Glucoside, Glyceryl Caprylate, Tocopherol, Maris Aqua, Xanthan Gum, Propylene Carbonate, Sodium Benzoate, Sodium Phytate, Phenethyl Alcohol, Hydrolyzed Rhodophyceae Extract
Water
Skin ConditioningOpuntia Tuna Fruit Extract
Skin ConditioningCypripedium Pubescens Extract
Skin ConditioningOpuntia Vulgaris Leaf Extract
Skin ConditioningAgave Tequilana Leaf Extract
AstringentArnica Montana Flower Extract
Masking
Aloe Barbadensis Leaf Extract
Emollient
Saccharomyces Cerevisiae Extract
Skin ConditioningLeuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Caprylic/Capric Triglyceride
Masking
Squalane
Emollient
Lactic Acid
Buffering
PPG-12/Smdi Copolymer
EmollientPropanediol
Solvent
Butylene Glycol
Humectant
Stearic Acid
Cleansing
Dimethicone
Emollient
Cetearyl Alcohol
Emollient
Phenyl Trimethicone
Skin Conditioning
Disiloxane
Skin Conditioning
Ceteareth-20
Cleansing
Glyceryl Stearate
Emollient
PEG-100 Stearate
Stearyl Glycyrrhetinate
Skin ConditioningGlycyrrhiza Glabra Root Extract
Bleaching
Cymbopogon Schoenanthus Oil
Masking
Potassium Hydroxide
BufferingPhenoxyethanol
Preservative
Xanthan Gum
EmulsifyingCaprylyl Glycol
Emollient
Chlorphenesin
Antimicrobial
Sodium Phytate
Water, Opuntia Tuna Fruit Extract, Cypripedium Pubescens Extract, Opuntia Vulgaris Leaf Extract, Agave Tequilana Leaf Extract, Arnica Montana Flower Extract, Aloe Barbadensis Leaf Extract, Saccharomyces Cerevisiae Extract, Leuconostoc/Radish Root Ferment Filtrate, Caprylic/Capric Triglyceride, Squalane, Lactic Acid, PPG-12/Smdi Copolymer, Propanediol, Butylene Glycol, Stearic Acid, Dimethicone, Cetearyl Alcohol, Phenyl Trimethicone, Disiloxane, Ceteareth-20, Glyceryl Stearate, PEG-100 Stearate, Stearyl Glycyrrhetinate, Glycyrrhiza Glabra Root Extract, Cymbopogon Schoenanthus Oil, Potassium Hydroxide, Phenoxyethanol, Xanthan Gum, Caprylyl Glycol, Chlorphenesin, Sodium Phytate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.
Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.
Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.
Like glycolic acid, it can:
Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.
Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.
To get results, choose products with a pH between 3-4.
Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.
Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.
When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.
Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.
Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.
Read more about some other popular AHA's here:
Learn more about Lactic AcidPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.
Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.
Research shows that squalane is non-irritating (even at 100% concentration).
In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.
The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.
Is squalane vegan?
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Is squalane an oil?
Squalane is often called an oil, but it’s technically not; it’s a hydrocarbon, meaning it’s only made of carbon and hydrogen, unlike true oils which are triglycerides made of fatty acids and glycerol.
The term “oil-free” isn’t regulated, so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils.
While some people avoid oils thinking they cause breakouts, the right kind of oil (or oil-like ingredient like squalane) can actually help balance and hydrate your skin. It’s worth testing out simple oils or squalane to see what works best for your skin.
Learn more about SqualaneWater. 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 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 GumIngredient Ratings
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When to use
Sephora Collection Gentle Peeling Serum with Niacinamide + Exfoliating Lactic Acid 24 ingredients
Sunday Riley Good Genes All-In-One Lactic Acid Treatment 32 ingredients
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