What can you compare?

DetailThe Ordinary US SolutionPaula's Choice BHA
Strength2% salicylic acidExact product strength needs checking
FormatWater based serumExact product texture needs checking
Formula detailsContains glycerin and saccharide isomerate; alcohol free and oil freeExact ingredient list needs checking
Price and size$6.70 USD for 30 mlCurrent price and size need checking
Routine placementBrand routine advice: once daily in the evening, after cleansing and before moisturizerFollow the exact product's directions
1

The Ordinary costs $6.70 for 30 ml, so the bottle does not need a luxury backstory. Compare cost for the same volume before deciding which bottle offers better value.1

Which should you choose?

Choose The Ordinary if you want this specifically priced 2% serum for oily or acne prone skin. For Paula's Choice, check the exact bottle before choosing it for strength, texture or value, because a brand name is not an ingredient list. Neither product can be named the gentler or more effective option from the information available.1

Salicylic acid unclogs pores and exfoliates skin, making it especially useful for blackheads and whiteheads. Mild acne can often be treated at home. Deep, painful lumps or acne that leaves scars need a dermatologist rather than another bottle comparison.23

How do you use The Ordinary?

  1. 1Test a small amount on one or two small treatment areas for three days before wider use.
  2. 2Cleanse, then apply a thin layer across the affected area, not only individual spots.
  3. 3Follow with moisturizer. The Ordinary's routine advice places the serum in the evening.
  4. 4Start with one application daily. Although the US acne directions allow gradual increases to two or three applications daily, reduce use to once daily or every other day if dryness or peeling becomes bothersome.
  5. 5Wear sunscreen during the day.
14

How long should you give it?

For acne treatment generally, fewer breakouts can appear within 4 to 8 weeks, with clearing around 16 weeks if treatment works for you. These are general expectations, not a timetable specific to either bottle. Use one acne treatment consistently for 6 to 8 weeks before adding another. If blemishes persist after that, or your skin is not clearing within a few months, see a dermatologist.23

Who should be careful?

The Ordinary advises against combining this serum with other acids, retinoids or peptides, and its exfoliating effects may not suit sensitive skin. If you use prescription acne medication, ask your doctor before adding salicylic acid. Combining it with treatments such as benzoyl peroxide or tretinoin can cause substantial irritation.14

Do not apply salicylic acid to broken, irritated or infected skin. Speak to your doctor before using it if you are pregnant, planning pregnancy or breastfeeding. Tell your doctor about salicylic acid allergies, aspirin use, and kidney or liver disease.5

Reduce frequency if dryness or irritation develops, and contact a doctor if irritation or stinging is severe or persistent. Stop using salicylic acid and seek immediate medical help for hives, throat tightness, trouble breathing, faintness or swelling of the face, lips or tongue.45

Where this answer comes from

  1. 1Salicylic Acid 2% Solutiontheordinary.com
  2. 2Adult acne treatment dermatologists recommendaad.org
  3. 3How to treat different types of acneaad.org
  4. 4Salicylic Acid Topical: MedlinePlus Drug Informationmedlineplus.gov
  5. 5Salicylic Acid Topical: MedlinePlus Drug Informationmedlineplus.gov