Personal Finance & Credit Evening Primrose Oil for Acne: Dosage for Hormones, Cysts, Scars, 8 months ago 0 Evening primrose oil (EPO) is a popular supplement for hormonal acne, cystic breakouts, and post-acne marksbut the... Read More Read more about Evening Primrose Oil for Acne: Dosage for Hormones, Cysts, Scars,