The Ordinary Salicylic Acid 2% Anhydrous Solution Versus The Ordinary Lactic Acid 5% + HA
Updated on March 04, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe . They have a total of 1 ingredients in common
Suited For
They're both likely to be good for dry skin, brightening skin, oily skin and reducing pores
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 Salicylic Acid 2% Anhydrous Solution 9 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
The Ordinary Salicylic Acid 2% Anhydrous Solution 9 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.
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.
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 GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary Salicylic Acid 2% Anhydrous Solution 9 ingredients
The Ordinary Lactic Acid 5% + HA 15 ingredients
Reviews
Here's what our community thinks
The Ordinary Salicylic Acid 2% Anhydrous Solution 9 ingredients
I made this work eventually.
I was intrigued when I first saw this product as most salicylic acid treatments that I’ve seen are in water based formulas. I however have dry AND acne prone skin so finding acne fighting + moisturizing products can be a little challenging. This did technically work for me as I did notice an improvement with pore appearance and blackheads, but it was also too easy for Show more
Started using this product around 3-4 months ago. I have noticed a complete transformation in my acne. I had been using products with “fatty alcohols” (Cerave), and unfortunately broke out.. bad. I had a ton of deep painful spots, majority on my chin and forehead. This product completely cleared/healed those spots within one month of use. Since then I have noticed, if I do get a spot, it appears Show more
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
