Detailed answer

During perimenopause, hormonal changes can lead to increased sebum production and clogged pores, resulting in whiteheads. To address this, a toner containing salicylic acid is beneficial. Salicylic acid is a beta-hydroxy acid that exfoliates the skin and helps to unclog pores by dissolving excess oil and dead skin cells. Look for toners with a concentration of 1-2% salicylic acid. Additionally, opt for toners that are specifically formulated for acne-prone or oily skin, as they often contain ingredients like witch hazel or tea tree oil that can further help to control oil production and reduce inflammation. It's important to avoid toners with alcohol, as they can be drying and irritating to the skin. Remember to patch test any new toner before applying it to your entire face, and consult with a dermatologist if you have any concerns.