Acids for oily skin: choosing and using them safely

The useful choice depends on whether your concern is shine, blackheads, inflamed acne or flaky redness. An acid is an exfoliant, not a reason to strip the skin with harsh cleansers.

Salicylic acid can enter oily follicular material and loosen the mixture of sebum and dead cells that contributes to clogged pores. Glycolic, lactic and mandelic acids mainly exfoliate the skin surface; they may improve roughness or dullness but can irritate when layered with other active products.

Oily skin does not automatically mean acne, and vigorous degreasing can leave the face tight and inflamed without addressing the cause of excess sebum. Greasy areas accompanied by persistent flakes, itching or redness can occur with seborrheic dermatitis and need a different approach.

Choose one acid product and test it on a limited area. Introduce it on occasional evenings, apply a light non-comedogenic moisturiser, and use broad-spectrum sunscreen during the day. Increase use only if the skin remains comfortable.

Do not stack an acid with scrubs, peels or several acne treatments at once. If the face becomes tight, shiny from irritation, scaly or sore, stop exfoliating and use a mild cleanser plus moisturiser until it settles. Pregnancy, eczema and prescription acne treatment are reasons to check product suitability with a clinician.

Arrange a dermatology assessment if oiliness comes with painful deep spots, scarring, widespread inflammation or a sudden unexplained change. Seek prompt care for facial swelling, blistering, severe burning or eye-area exposure after using an acid.

Persistent acne may need treatment beyond cosmetics. Isotretinoin can greatly reduce sebum in selected people with severe acne, but it is a prescription medicine with specific monitoring and pregnancy precautions; it should not be treated as a routine solution for shine alone.

Describe whether you also have blocked pores, sore spots, itching or flakes. Ask whether the pattern fits acne or seborrheic dermatitis, which acid strength suits your current routine, and which active ingredients should be used on separate days.