The Ordinary Lactic Acid 10% + HA Versus Face Facts Lactic Acid AHA Serum
Updated on April 10, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 5 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, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, 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 Lactic Acid 10% + HA 15 ingredients
Face Facts Lactic Acid AHA Serum 26 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The Ordinary Lactic Acid 10% + HA 15 ingredients
Face Facts Lactic Acid AHA Serum 26 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 Hydroxide
BufferingSodium Hyaluronate Crosspolymer
Humectant
Tasmannia Lanceolata Fruit/Leaf Extract
Antioxidant
Acacia Senegal Gum
MaskingXanthan Gum
EmulsifyingIsoceteth-20
Emulsifying
Trisodium Ethylenediamine Disuccinate
Ethylhexylglycerin
Skin Conditioning1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientWater
Skin ConditioningButylene Glycol
Humectant
Lactic Acid
Buffering
Aloe Barbadensis Leaf Water
MaskingBetaine
Humectant
PEG/PPG-17/6 Copolymer
SolventPrunus Persica Extract
CleansingYeast Ferment Extract
Skin ConditioningSorbeth-30
Emulsifying
Hydroxyethylcellulose
Emulsion StabilisingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingPhenoxyethanol
Preservative
Sodium Hydroxide
BufferingHydroxyacetophenone
Antioxidant
Allantoin
Skin Conditioning
PEG-40 Hydrogenated Castor Oil
Emulsifying
Panthenol
Skin Conditioning
Chlorphenesin
Antimicrobial
Ethylhexylglycerin
Skin ConditioningBiosaccharide Gum-1
Skin Conditioning1,2-Hexanediol
Skin ConditioningParfum
Masking
Disodium Phosphate
BufferingPolysorbate 60
Emulsifying
Sodium Phosphate
BufferingBenzyl Benzoate
Antimicrobial
Water, Butylene Glycol, Lactic Acid, Aloe Barbadensis Leaf Water, Betaine, PEG/PPG-17/6 Copolymer, Prunus Persica Extract, Yeast Ferment Extract, Sorbeth-30, Hydroxyethylcellulose, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Sodium Hydroxide, Hydroxyacetophenone, Allantoin, PEG-40 Hydrogenated Castor Oil, Panthenol, Chlorphenesin, Ethylhexylglycerin, Biosaccharide Gum-1, 1,2-Hexanediol, Parfum, Disodium Phosphate, Polysorbate 60, Sodium Phosphate, Benzyl Benzoate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterLactic 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 AcidSodium 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.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideEthylhexylglycerin (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.Â
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 preservativesÂ
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary Lactic Acid 10% + HA 15 ingredients
Face Facts Lactic Acid AHA Serum 26 ingredients
Reviews
Here's what our community thinks
The Ordinary Lactic Acid 10% + HA 15 ingredients
Not for my face but very good for my feet!
Use it once a week during tret break, really helps with fungal acne flare up
