Supplements may support skin in some milder cases of acne but are not a substitute for dermatology evaluation, diagnosis, or clinician-directed care for moderate-to-severe, scarring, or hormonal acne. Seek prompt medical care for any sudden severe widespread inflammatory acne with fever, joint pain, or general illness (possible rare severe inflammatory acne or infection), or for skin lesions that look infected (spreading redness, warmth, fluctuance, or significant pus) — these may need urgent care or antibiotics. Book a dermatology visit for moderate-to-severe inflammatory acne, nodulocystic or cystic acne (high scarring risk), acne that has not responded to over-the-counter or basic topical care after 2-3 months, scarring or post-inflammatory hyperpigmentation, sudden onset of severe acne in adulthood, or acne accompanied by hirsutism, irregular periods, hair loss, or other signs that could suggest a hormonal condition such as PCOS. Evaluation may include skin exam, assessment of acne type and severity, hormonal evaluation when indicated, and discussion of topical retinoids, topical or oral antibiotics, hormonal therapy, or isotretinoin when appropriate. Evidence-based care often includes consistent skincare with non-comedogenic products, prescribed topical retinoids and benzoyl peroxide, topical or oral antibiotics for inflammatory disease, hormonal therapy in selected patients, and isotretinoin for severe or scarring disease; zinc, omega-3, probiotics, vitamin A, DIM, and nicotinamide have been studied as adjuncts within that framework. Disclose all supplement use to your prescriber if you are pregnant, planning pregnancy, or could become pregnant (preformed vitamin A and isotretinoin are teratogenic), or if you take antibiotics, hormonal therapy, or other prescription medication.