Paula's Choice 2% BHA: what it does and how to use it

What does BHA do?

BHA stands for beta hydroxy acid. These acids dissolve in oil and reach into pores, where they help remove dead skin and sebum, the oil your skin produces. Salicylic acid is the most common BHA in skincare. Its main practical use is unclogging pores, especially when blackheads and whiteheads are the concern. Alpha hydroxy acids, or AHAs, work more on the skin's surface by loosening the bonds between dead cells.2

Paula's Choice lists SKIN PERFECTING 2% BHA Exfoliating Toner and 2% BHA Exfoliating Toner Pads separately, because apparently even exfoliation needs a filing system. Match the name on your bottle before following directions for another format. For the current ingredient list, use your product packaging rather than treating a website as a permanent record, since formulas do not sign a lease.13

How do you use Paula's Choice BHA?

Use your bottle's directions for the amount, application method and whether to rinse. The steps below are general exfoliation guidance, rather than a product specific dosing schedule.4

1. 1Review the rest of your routine first. Prescription retinoids, retinol and benzoyl peroxide can make skin more sensitive or cause peeling; adding exfoliation can worsen dryness or breakouts.
2. 2Check your skin before applying. Do not exfoliate skin with open cuts, wounds or sunburn.
3. 3Apply gently, following the instructions for your exact product. Stronger exfoliation generally needs a less frequent schedule.
4. 4Follow exfoliation with moisturizer to replace moisture and help keep skin hydrated.
5. 5Use SPF 30 or higher sunscreen every day. Facial acids can leave skin more vulnerable to sun damage.

Can you use BHA every day?

Daily use is not a requirement. Salicylic acid can be used twice daily by many people, but that is general ingredient guidance, not an instruction to use this toner twice daily. Choose frequency around the bottle's directions, your skin type and any irritation. More aggressive exfoliation needs fewer applications, not a more ambitious calendar.24

What results should you expect?

Facial acids can make skin smoother and brighter, while BHA's pore clearing action makes blackheads and whiteheads a sensible target. Facial acids take time and regular use to work. There is no fixed results deadline to follow for this toner; judge whether the routine is helping without increasing applications simply to hurry it along.2

Who should be careful?

Dry or sensitive skin needs particular care with exfoliation. Stinging, burning, redness or irritation are reasons to stop adding exfoliation rather than increase it. Avoid aggressive exfoliation if you have darker skin or develop dark marks after acne, burns or insect bites, because it can increase pigmentation. If exfoliation causes problems or you are unsure whether it suits your skin, a dermatologist can help you choose an appropriate approach.4

Can you use BHA during pregnancy?

Salicylic acid is generally considered safe during pregnancy when used for a limited time. Ask your obstetrician or dermatologist before using a salicylic acid exfoliant while pregnant. That guidance is not permission for unrestricted daily use throughout pregnancy.5