Tretinoin is one of the most studied prescription retinoids for acne. It speeds up skin cell turnover, which helps clear pores before they become inflamed breakouts, supports smoother texture, and can gradually fade the look of post-acne marks over time. That makes it especially useful for stubborn comedonal acne (clogged pores, blackheads, and whiteheads), rough or uneven texture, and recurring breakouts — including the hormonal breakouts that show up alongside PCOS-pattern symptoms.
At Oana, Tretinoin is custom compounded in 0.025%, 0.05%, and 0.1% strengths so your provider can match the formula to your skin goals, acne severity, and tolerance. It's compounded with niacinamide by default, and can be compounded without niacinamide if you request a simpler formula.