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Updated on June 07, 2024

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 5 ingredients in common

Cool Features

They both contain AHA and BHA

Suited For

They're both likely to be good for fighting acne, 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, common allergens, oils, parabens, silicones or sulfates

What's Inside

They both contain fragrances

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Biologique Recherche Lotion P50W
The Ordinary AHA 30% + BHA 2% Peeling Solution
The Ordinary AHA 30% + BHA 2% Peeling Solution
Facial Treatment
Canadian Brand Canada

Ingredient Info

Click any item below to learn more and see relevant ingredients
ph level
3
ph level
3.6

At a glance

Click on any of the items below to learn more

Notable Ingredients

Benefits

Concerns

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Lotion P50W
Water Skin Conditioning, Solvent

Water. 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.

Gluconolactone Skin Conditioning
PHA IconGood for Skin Texture IconHelps with Anti-Aging Icon
PHAPHA Icon 2 Benefits

Gluconolactone is a PHA. PHAs are a great gentle alternative to traditional AHAs.

Niacinamide Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconGood for Minimizing Pores IconGood for Dark Spots IconHelps fight Acne IconHelps brighten skin Icon
NiacinamideNiacinamide Icon 6 Benefits

Niacinamide has emerged as an all-star ingredient due to its many benefits.

Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon
2 Benefits

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Propylene Glycol Humectant, Skin Conditioning, Solvent
0 / 0 May worsen Eczema Icon
May worsen EczemaMay worsen Eczema Icon

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

0 Com. / 0 Irr.
Disliked Full details ->
Lactic Acid Buffering, Humectant, Skin Conditioning
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
AHAAHA Icon 6 Benefits 3 Concerns

Lactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.

Ethoxydiglycol Humectant, Solvent
0 / 0

Ethoxydiglycol is a synthetic solvent.

0 Com. / 0 Irr.
Magnesium Chloride

We don't have a description for Magnesium Chloride.

Malic Acid Buffering
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

Malic Acid is an AHA derived from unripe fruit. The word "Malic" comes from the word "Malum". In Latin, "Malum" means apple.

Arctium Lappa Root Extract Skin Conditioning

Arctium Lappa Root Extract is from the burdock plant. It is an antioxidant and helps soothe skin. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells.

Cochlearia Armoracia Root Extract Masking

We don't have a description for Cochlearia Armoracia Root Extract.

Unknown Full details ->
Quillaja Saponaria Bark Extract Cleansing, Emulsifying, Foaming

We don't have a description for Quillaja Saponaria Bark Extract.

Unknown Full details ->
Arnica Montana Flower Extract Masking, Perfuming, Skin Conditioning
Fragrance Icon
FragranceFragrance Icon

Arnica Montana Flower Extract is a fragrance.

Capsicum Frutescens Fruit Extract Skin Conditioning

We don't have a description for Capsicum Frutescens Fruit Extract.

Unknown Full details ->
Phytic Acid
AHA IconHelps brighten skin IconMay worsen Rosacea Icon
AHAAHA Icon Helps brighten skinHelps brighten skin Icon May worsen RosaceaMay worsen Rosacea Icon

Phytic Acid is a gentle AHA and antioxidant. The chemical makeup makes it classified as an AHA, such as lactic acid.

Citric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

Disliked Full details ->
Sodium Lactate Buffering, Humectant

Sodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and used to adjust the pH of a product.

Allantoin Skin Conditioning, Skin Protecting, Soothing
0 / 0 Helps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon
3 Benefits

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

0 Com. / 0 Irr.
Serine Masking, Skin Conditioning

Serine is an amino acid naturally found in our body. Our bodies use amino acids to create protein.

Sulfur Antiseborrhoeic, Skin Conditioning
3 / 0 Helps fight Acne Icon
Helps fight AcneHelps fight Acne Icon

Sulfur is a commonly occurring element on Earth (and our universe!). In cosmetics, it helps kill bacteria, reduces sebum, and provides exfoliation. This makes it an effective ingredient to reduce breakouts and fight acne.

3 Com. / 0 Irr.
Vinegar

In cosmetics, vinegar is often used to help adjust the pH of a product. It is also a light exfoliant. The pH of your skin is important to maintain a healthy skin barrier.

Sodium Salicylate Preservative
BHA IconPreservative IconGood for Minimizing Pores IconMay worsen Rosacea Icon
BHABHA Icon PreservativePreservative Icon Good for Minimizing PoresGood for Minimizing Pores Icon May worsen RosaceaMay worsen Rosacea Icon

This ingredient is the sodium salt of salicylic acid, the famous anti-acne ingredient.

Sorbitol Humectant, Masking, Skin Conditioning
0 / 0 Helps hydrate Dry Skin Icon
Helps hydrate Dry SkinHelps hydrate Dry Skin Icon

Sorbitol is a sugar alcohol. It is a hydrating and moisturizing agent created from the reduction process of glucose.

0 Com. / 0 Irr.
Tea-Lactate Humectant, Skin Conditioning

We don't have a description for Tea-Lactate.

Unknown Full details ->
Urea Buffering, Humectant, Skin Conditioning
Helps hydrate Dry Skin IconGood for Skin Texture IconMay worsen Eczema IconMay worsen Rosacea Icon
2 Benefits 2 Concerns

Urea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.

Sodium Benzoate Masking, Preservative
Preservative Icon
PreservativePreservative Icon

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Disliked Full details ->
Sodium Bisulfite Antioxidant, Preservative
Antioxidant IconPreservative Icon
AntioxidantAntioxidant Icon PreservativePreservative Icon

Sodium Bisulfite is an antioxidant and is a preservative.

Unknown Full details ->
AHA 30% + BHA 2% Peeling Solution
Glycolic Acid Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 7 Benefits 2 Concerns

Glycolic Acid is arguably the most famous AHA with research to back up its benefits. Its main role is to peel the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.

Water Skin Conditioning, Solvent

Water. 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.

Aloe Barbadensis Leaf Water Masking

Aloe Barbadensis Leaf Water is an aqueous solution of the steam distillate obtained from the leaves of the aloe, Aloe barbadensis, Liliaceae.

Sodium Hydroxide Buffering

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

Daucus Carota Sativa Extract Perfuming, Skin Conditioning
Fragrance Icon
FragranceFragrance Icon

Daucus Carota Sativa Extract is created from parts of the carrot plant. The orange and edible carrot itself is the root.

Unknown Full details ->
Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Cocamidopropyl Dimethylamine Emulsifying

Cocamidopropyl Dimethylamine comes from the fatty acids of coconut oil. It is an emulsifier, meaning it helps stabilize and mix ingredients.

Disliked Full details ->
Salicylic Acid Masking, Preservative, Skin Conditioning
BHA IconPreservative IconGood for Oily Skin IconGood for Minimizing Pores IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconCan worsen Dry Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
BHABHA Icon PreservativePreservative Icon 5 Benefits 4 Concerns

Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.

Potassium Citrate Buffering

We don't have a description for Potassium Citrate.

Unknown Full details ->
Lactic Acid Buffering, Humectant, Skin Conditioning
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
AHAAHA Icon 6 Benefits 3 Concerns

Lactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.

Tartaric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

Tartaric Acid is an AHA. It can help to improve skin texture, reduce large pores, heal scars, and brighten skin. It can cause irritation and worsen rosacea.

Citric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

Disliked Full details ->
Panthenol Skin Conditioning
0 / 0 Helps reduce irritation Icon
Helps reduce irritationHelps reduce irritation Icon

Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.

0 Com. / 0 Irr.
Sodium Hyaluronate Crosspolymer Humectant, Skin Conditioning
Hyaluronic Acid Icon
Hyaluronic AcidHyaluronic Acid Icon

Sodium Hyaluronate Crosspolymer is a type of hyaluronic acid. In fact, it is modified version of hyaluronic acid.

Tasmannia Lanceolata Fruit/Leaf Extract Antioxidant, Skin Conditioning
Antioxidant Icon
AntioxidantAntioxidant Icon

Tasmannia Lanceolata Fruit/Leaf Extract is an antioxidant.

Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon
2 Benefits

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.
Pentylene Glycol Skin Conditioning, Solvent

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

Xanthan Gum Emulsifying, Emulsion Stabilising, Gel Forming

Xanthan 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.

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Polysorbate 20 Emulsifying
0 / 0 Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.

0 Com. / 0 Irr.
Very Disliked Full details ->
Trisodium Ethylenediamine Disuccinate

Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.

Potassium Sorbate Preservative
Preservative Icon
PreservativePreservative Icon

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

Disliked Full details ->
Sodium Benzoate Masking, Preservative
Preservative Icon
PreservativePreservative Icon

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Disliked Full details ->
Ethylhexylglycerin Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

1,2-Hexanediol Skin Conditioning, Solvent

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

Caprylyl Glycol Emollient, Humectant, Skin Conditioning

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent
Loved

Water. 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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
Humectant, Skin Conditioning, Skin Protecting
Loved

Glycerin 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 Glycerin
Buffering, Humectant, Skin Conditioning
Loved

Lactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.

Benefits of Lactic Acid are that it can help to reduce large pores and reduce the effects of aging. Some potential downsides are that it can be bad for dry skin, cause irritation, worsen eczema, and worsen rosacea.

Not only does it help exfoliate the skin, it helps strengthen the skin's barrier. When applied, lactic acid helps the skin create ceramides.

Lactic acid is an over-the-counter chemical exfoliant that comes from the fermentation of lactose — a carbohydrate found in milk.

Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.

Read more about some other popular AHA's here:

Learn more about Lactic Acid
Buffering, Masking
Disliked

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.

Read more about some other popular AHA's here:

Learn more about Citric Acid
Masking, Preservative
Disliked

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

Sodium Benzoate is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Learn more about Sodium Benzoate

Ingredient Ratings

Here's what our community thinks of the ingredients in these two products.

Lotion P50W
15
4
3
5
liked
mixed
disliked
not rated
AHA 30% + BHA 2% Peeling Solution
12
5
6
2
liked
mixed
disliked
not rated

When to use

64 Routines
28% use in am
72% use in pm
84% use every day
When to use See routines that use it ->
1,581 Routines
13% use in am
87% use in pm
43% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Biologique Recherche Lotion P50W 27 ingredients

Lotion P50W hasn't been rated yet.
Rate it now

The Ordinary AHA 30% + BHA 2% Peeling Solution 25 ingredients

3.9 /5
from 40 ratings
Great Value (5) Doesn't Work (3) Irritating (3) Works Well (2) Light Scent (2) Strong Scent (2)
BrodyTosi's avatar

BrodyTosi

5 months ago · Sensitive Skin
Review

Speaking anecdotally, please be very well informed and careful if you choose to use this product. While this product contains both AHA and BHA...

Speaking anecdotally, please be very well informed and careful if you choose to use this product. While this product contains both AHA and BHA chemical exfoliants I will be emphasizing its AHA content as a potential safety/irritant concern to the skin. Alpha hydroxy acids in this concentration can very easily over-exfoliate by stripping corneocytes from, or desquamating, the outermost stratum corneum of the epidermis. While this product formulation is vague about specific AHA composition of “30%”, The Ordinary’s website states that glycolic acid is the primary alpha hydroxy acid in their formula. Current clinical research (and the FDA) has established a general consensus that the concentration of AHAs for safe routine use in over the counter products is approximately in the figure range of 2-10%. For reference, dermatologists with over 8 years of medical and residency training perform chemical peels with glycolic acid ranging in concentration anywhere from 20-70% depending on intended penetration of the stratum corneum. With that said, there are some individuals with skin who can tolerate this level of exfoliation, but my personal philosophy is that less is more with chemical exfoliants. If you are thinking about using this product please do your due diligence and look into open-access research on chemical exfoliants, consider all exfoliant options side-by-side/if a chemical exfoliant is right for you, and understand your skin’s sensitivity level before jumping to one product.

cgi's avatar

cgi

5 months ago · Oily Skin
Review

one of my fav chemical exfoliators. i recommend this for people with oily/acne-prone skin, those with dry or sensitive types should probably...

one of my fav chemical exfoliators. i recommend this for people with oily/acne-prone skin, those with dry or sensitive types should probably avoid.

NOTES: please be careful with this. i’ve seen so many people use this product incorrectly and would end up getting a bad reaction (like literally burning their face). then leave bad review without having used it properly. this is a CHEMICAL exfoliating peel, it will sting but it should NEVER burn. if it does, your skin either cannot handle it or it was applied wrong.

here’s how to make sure it’s being used correctly:
- don’t use it with any clashing ingredients in your other products. (ex: vitamin C)
- don’t use it if you have open wounds (picked pimples)
- make sure your skin is completely dry before application, only use 2-3 drops or enough to cover your face.
- it should be a thin red layer, not thick, or you’ll burn your skin.
- AVOID APPLYING ON EYE AREA
- do NOT leave it on for more than 10 minutes, even if you don’t feel anything. you will completely strip and damage your skin.
- make sure to use sunscreen every morning while using this.

i use this once a week at night time after i cleanse my face. i first started to notice a difference after a couple weeks of use, my breakouts were disappearing and it reduced the bumps on my skin. it does an excellent job of improving skin texture and removing blackheads/blemishes. my skin always feels so smooth after use. it helped a lot of my dark spots and acne scars fade. i also love how cheap this is, a holy grail under $10.

the only things i don’t like about this is the sensation and smell. it doesn’t hurt (no skincare product should anyway) but it does sting, which is to be expected of. it has a weird smell to it, i’m not sure how to describe it but it’s not bad. i personally don’t mind fragrance as it doesn’t bother my sense of smell or irritate my skin. this product could be irritating to others though. it all entirely depends on your skin.