The Ordinary AHA 30% + BHA 2% Peeling Solution Versus COSRX The AHA BHA PHA LHA 35 Peel
Updated on October 29, 2024
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 9 ingredients in common
Cool Features
They both contain AHA, BHA and hyaluronic acid
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
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
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
COSRX The AHA BHA PHA LHA 35 Peel 27 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
COSRX The AHA BHA PHA LHA 35 Peel 27 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Glycolic Acid
Buffering
Water
Skin ConditioningAloe Barbadensis Leaf Water
MaskingSodium Hydroxide
BufferingDaucus Carota Sativa Extract
Perfuming
Propanediol
SolventCocamidopropyl Dimethylamine
EmulsifyingSalicylic Acid
Masking
Lactic Acid
Buffering
Tartaric Acid
Buffering
Citric Acid
Buffering
Panthenol
Skin Conditioning
Sodium Hyaluronate Crosspolymer
Humectant
Tasmannia Lanceolata Fruit/Leaf Extract
Antioxidant
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningXanthan Gum
EmulsifyingPolysorbate 20
Emulsifying
Trisodium Ethylenediamine Disuccinate
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Ethylhexylglycerin
Skin Conditioning1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientGlycolic Acid, Water, Aloe Barbadensis Leaf Water, Sodium Hydroxide, Daucus Carota Sativa Extract, Propanediol, Cocamidopropyl Dimethylamine, Salicylic Acid, Lactic Acid, Tartaric Acid, Citric Acid, Panthenol, Sodium Hyaluronate Crosspolymer, Tasmannia Lanceolata Fruit/Leaf Extract, Glycerin, Pentylene Glycol, Xanthan Gum, Polysorbate 20, Trisodium Ethylenediamine Disuccinate, Potassium Sorbate, Sodium Benzoate, Ethylhexylglycerin, 1,2-Hexanediol, Caprylyl Glycol
Water
Skin ConditioningGlycolic Acid
Buffering
Lactic Acid
Buffering
Potassium Hydroxide
BufferingGluconolactone
Skin Conditioning
Mandelic Acid
Antimicrobial
Dipropylene Glycol
MaskingPanthenol
Skin Conditioning
Salicylic Acid 2%
Masking
Methylpropanediol
Solvent1,2-Hexanediol
Skin ConditioningOctyldodeceth-16
EmulsifyingCitric Acid
Buffering
Hydroxyethylcellulose
Emulsion StabilisingPentylene Glycol
Skin ConditioningSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingCyanocobalamin
Skin ConditioningPolyacrylate Crosspolymer-6
Emulsion StabilisingHydroxypropyl Starch Phosphate
Ethylhexylglycerin
Skin ConditioningCapryloyl Salicylic Acid
Exfoliating
Polysorbate 60
Emulsifying
Disodium Phosphate
BufferingSodium Phosphate
BufferingTocopherol
Antioxidant
Allantoin
Skin Conditioning
Hydrolyzed Hyaluronic Acid
Humectant
Water, Glycolic Acid, Lactic Acid, Potassium Hydroxide, Gluconolactone, Mandelic Acid, Dipropylene Glycol, Panthenol, Salicylic Acid 2%, Methylpropanediol, 1,2-Hexanediol, Octyldodeceth-16, Citric Acid, Hydroxyethylcellulose, Pentylene Glycol, Sodium Polyacryloyldimethyl Taurate, Cyanocobalamin, Polyacrylate Crosspolymer-6, Hydroxypropyl Starch Phosphate, Ethylhexylglycerin, Capryloyl Salicylic Acid, Polysorbate 60, Disodium Phosphate, Sodium Phosphate, Tocopherol, Allantoin, Hydrolyzed Hyaluronic Acid
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Glycolic Acid is arguably the most famous AHA with a ton of research to back up its benefits.
Its main role is to remove the top layer of dead skin cells, allowing newer skin cells to emerge.
Specifically, AHAs work by breaking down the structural "glue" holding the old skin cells in place. Getting rid of the old skin cells allows skin to regenerate newer skin cells in its place. A build up of dead skin cells can lead to tired and dull looking skin.
Due to this, glycolic acid helps with:
Fun fact: Glycolic acid increases skin hydration by playing a role in creating molecules that create hyaluronic acid naturally.
When starting glycolic Acid, it is normal to feel slight stinging.
The pH value and concentration of glycolic acid play a role in the effectiveness of the product. Concentrations between 5-20% glycolic acid have been shown to be effective in clinical studies.
Recent studies have shown Glycolic Acid may protect the skin against UV damage. However, you should always wear SPF, especially when using exfoliants.
Read more about some other popular AHA's here:
Learn more about Glycolic AcidWater. 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 WaterSalicylic 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.
This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.
Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.
In general, Salicylic Acid is a great ingredient for oily acne-prone skin.
While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Learn more about Salicylic AcidLactic 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 AcidCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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 even out skin tone.
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.
Read more about some other popular AHA's here:
Learn more about Citric AcidPanthenol 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 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.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolEthylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
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
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
COSRX The AHA BHA PHA LHA 35 Peel 27 ingredients
Reviews
Here's what our community thinks
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
The best exfoliator i ever tried. I think it's the best choice for those who has stubborn blackheads, because it literally melts them away. People with sensitive skin should be cautious, because it's an intense product and maybe too harsh for sensitive and dry skin types. I would highly recommend to use a deeply hydrating mask and restore skin's barrier after the procedure, because as I said Show more
Very good but beware it’s very strong. It says use once or twice a week but I would recommend once very 2 or three weeks. If it’s too strong for you, use the Glycerin Acid Toner 7%. After that don’t put any toner. Pair it up with Hyaluronic acid of your choice and a very moisturizing cream in the night time and you’re all set :)
COSRX The AHA BHA PHA LHA 35 Peel 27 ingredients
Love this. I use it every 2 weeks in the evenings. The next morning my skin looks and feels great. Does exactly what it is supposed to do.
