At a glance
- Term
- BHA (beta hydroxy acid)
- Area
- Ingredients
- Measurable from a selfie
- No
- Evidence
- Established
- Related
- AHA (alpha hydroxy acid), Salicylic acid, Comedone, Pore size
What BHA means on the label
Look for salicylic acid in the ingredient list. That's the ingredient behind the BHA label in this context. Its oil solubility lets it get into the pore, which explains its use for clogged pores and blackheads.
AHA means alpha hydroxy acid and describes water-soluble exfoliating acids. If ingredient names make a label hard to follow, the glossary explains the terms.
What the evidence supports
BHA exfoliation has established evidence for addressing concerns such as blackheads, clogged pores and oily skin. That doesn't mean everyone with a visible pore needs to add salicylic acid to their routine.
The usual 0.5 to 2 percent range describes product strength, not how often you should apply it. A higher number doesn't predict your result or mean you need to choose the top of the range.
What a photo can't tell you
A selfie can't measure BHA, tell you whether your routine contains it, or choose a suitable strength for your skin.
Pore size is a separate topic from the ingredient you might use for congestion. Don't read a number from a single photo as a fixed fact about your face, or a reason to add acid.
Review what you're already using
The free routine checker reads the products you type in and flags duplicate actives and ordering mistakes; no photo is needed.
In How to safely exfoliate at home, the American Academy of Dermatology recommends reviewing your existing products before exfoliating. Exfoliation can worsen dryness when combined with products that already make skin peel or feel sensitive.
Apply moisturizer after exfoliating, and avoid exfoliating sunburned skin or open wounds. Ask a dermatologist if you're unsure whether exfoliation suits your skin.
Questions people ask
- What does BHA stand for in skincare?
- BHA stands for beta hydroxy acid, which usually refers to salicylic acid on the label of an exfoliating skincare product.
- What is BHA used for?
- BHA is an oil-soluble exfoliant used for blackheads, clogged pores and oily skin. Its oil solubility lets it get into pores.
- Can a selfie tell me which BHA strength to use?
- No. A selfie can't select a suitable concentration for your skin. The usual product range is 0.5 to 2 percent.
Written from the measurements and ingredient facts on this site, then checked for the usual mistakes. Not medical advice.
Related pages
The closest pages in this section, picked by topic rather than by date.
- aha meaning: What alpha hydroxy acids doLearn aha meaning, how these acids smooth texture and fade marks, why they increase sun sensitivity, and what a selfie can't measure.
- Comedone meaning: Blackheads, whiteheads and photosComedone meaning explained: how blocked pores form blackheads and whiteheads, what a selfie can measure, and where acne treatments fit.
- Benzoyl peroxide meaning: what it does for acneUnderstand benzoyl peroxide meaning, how acne washes and creams work, why stronger isn't always better, and what a selfie can actually measu
- broad spectrum meaning: What the sunscreen label tells youLearn broad spectrum meaning, why UVA and UVB coverage matters alongside SPF, and why a selfie can't measure your sunscreen's protection.