- AHA 30%
- Azelaic Acid
- Glycolic Acid Toner
- Lactic Acid 5%
- Lactic Acid 10%
- Mandelic Acid
- Salicylic Acid 2%
- Salicylic Acid Anhydrous Solution
- Salicylic Acid Masque
There are currently 9 acids by The Ordinary. The newest acids are The Ordinary Salicylic Acid 2% which was finally reformulated after numerous years and the Salicylic Acid Anhydrous Solution.
How many acids should I buy?
I recommend that you only buy 1 or 2 acids because they have a lot of conflicts and only one acid should be used in a routine.
Products You Can & Cannot Use With The Ordinary Acids
The Ordinary currently recommends avoiding using the following products in the same routine. You can use in alternate routines or on different days.
- Copper Peptides
- EUK134 0.1%
- Peptides
- Niacinamide Powder
- Direct Acids
- Pure/Ethylated Vitamin C
- Retinoids
You can find all The Ordinary acid conflicts here. Always check The Ordinary website instructions before using any products because the information is regularly updated.
Patch Testing
Always patch test products, especially acids and do not rush into using them every day. Start slowly. Read the patch testing guide on The Ordinary website.
Can The Ordinary acids be used around the eyes?
Avoid the eye area when using acid. It is important to patch test these products before using them and to start using them slowly.
The Ordinary Acids
You can find more information including FAQs about each product and reviews by the Deciem Addicts
The Ordinary AHA 30% Peeling Solution
- Targets
- Dullness
- Textural Irregularities
- Use once or twice a week
The Ordinary Azelaic Acid Suspension
- Brightens
- Evens skin tone
- Textural Irregularities
- Antioxidant Support
- When & How: PM after water solutions
- Patch testing is highly recommended
- Avoid the eye area.
The Ordinary Glycolic Acid
- Brightens skin
- Radiant Even Tone
- Use in the evening after cleansed skin and before serums.
- Patch testing is highly recommended
- Avoid the eye area.
Lactic Acid 5% + HA
- Fine lines
- Textural Irregularities
- Evens Tone
- Apply directly on dry, cleansed skin followed by creams/oils and preferably in the evenings only.
- Patch testing is highly recommended
- Avoid the eye area.
Lactic Acid 10% + HA
- Fine lines
- Texture Irregularities
- Evens Tone
- Apply directly on dry, cleansed skin followed by creams/oils and preferably in the evenings only.
- Patch testing is highly recommended
- Avoid the eye area.
Mandelic Acid 10% + HA
- Dullness
- Uneven Tone
- Textural Irregularities
- When & How: use preferably in the evening before creams/oils.
- Patch testing is highly recommended
- Avoid the eye area.
Salicylic Acid 2% Solution
- Fights acne
- Evens Skintone
- Spot treatment or Entire Face
- Use in the morning or evening after cleansing
- Patch testing is highly recommended
- Avoid the eye area.
The Ordinary Salicylic Acid Anhydrous Solution

- Fights acne
- Evens Skintone
- Use in the morning or evening after cleansing and before oils/creams
- Patch test
The Ordinary Salicylic Acid Masque
- Lacklustre Tone
- Textural Irregularities
- Patch testing is highly recommended
- Avoid the eye area.
FAQS about The Ordinary Acids
These questions have been asked and answered by The Ordinary on Social Media.
Which one is best to help clear blackheads? You may wish to explore Salicylic Acid 2% Masque.
Which acids can help with boxcars rolling or ice pick scar? You may wish to explore Glycolic Acid 7% Toning Solution.
Can I interchangeably use the Salicylic acid 2% solution along with the Niacinamide 10% + Zinc 1%? Yes, you can use them together!
Can I use salicylic acid solution with Niacinamide+Zinc, Natural Moisturizing Factors and Rose Hip Seed Oil? Yes, you can.
Which acid would you recommend for an intermediate user? An intermediate user has had experience using Salicylic Acid or derivative products before.
How often weekly do we use the BHA salicylic acid 2%? It can be used up to once daily or less frequently depending on your skin tolerance.
I have dry skin so I can use acids? We’d recommend applying test patches to see how your skin likes the formulation.
