Cos De BAHA Lactic Acid 12.5% Face Peel Serum with HA Versus The Ordinary Lactic Acid 5% + HA
Updated on March 04, 2025
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 3 ingredients in common
Cool Features
They both contain AHA
Suited For
They're both likely to be good for anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
Cos De BAHA Lactic Acid 12.5% Face Peel Serum with HA 11 ingredients
The Ordinary Lactic Acid 5% + HA 15 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Cos De BAHA Lactic Acid 12.5% Face Peel Serum with HA 11 ingredients
The Ordinary Lactic Acid 5% + HA 15 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningLactic Acid
Buffering
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningPropanediol
SolventSodium Hyaluronate Crosspolymer
Humectant
Tasmannia Lanceolata Fruit/Leaf Extract
Antioxidant
Acacia Senegal Gum
MaskingXanthan Gum
EmulsifyingIsoceteth-20
Emulsifying
Trisodium Ethylenediamine Disuccinate
Sodium Hydroxide
BufferingEthylhexylglycerin
Skin Conditioning1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientIngredients 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 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 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 Propanediol1,2-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
Cos De BAHA Lactic Acid 12.5% Face Peel Serum with HA 11 ingredients
The Ordinary Lactic Acid 5% + HA 15 ingredients
Reviews
Here's what our community thinks
Cos De BAHA Lactic Acid 12.5% Face Peel Serum with HA 11 ingredients
Texture: Very lightweight. Absorbed easily.
Scent: No scent
Performance: I use this when I feel my skin is rough textured. Hydrating.
Pros: Slightly higher strength than The Ordinary (10%)
Cons: Oily free ingredient list but it makes my fingers slippery, my gel type moisturizer just running off my fingers.
WRP/WNRP: WNRP
The Ordinary Lactic Acid 5% + HA 15 ingredients
Holy grail for real. This stuff works instantly overnight to sooth acne and balance skin tone/texture. Everytime I do some damage picking at my skin, this serum basically undoes it all. Fantastic for maintenance whilst purging acne, I use this in rotation with the inkey list BHA serum and they have resurfaced and evened out all my fungal acne, going to move onto the 10% for clearing up my scars Show more
🤍 been using this for 2 years now, and i've really seen significant changes in my skin—especially with hyperpigmentation and texture ♡ however, it can be a bit irritating since i have sensitive skin, and it feels a little harsh when i combine it with the niacinamide 10% + zinc from the ordinary too. so, on my heavier days where my skin is extra sensitive, i skip this serum and just use moisturizer Show more
