Tame Frizz and smooth hair with this for effortless messy wavesTame frizz and smooth hair with this set for effortless messy waves.Since she has naturally "frizzy" hair, Annette Vartanian (@vintagesplendor) needs smoothing products that can tame her waves. That's why she uses OI Shampoo, OI Conditioner, OI All In One Milk and a finishing touch of OI Oil to achieve her signature look. Shop this set of 4 OI hair products to get Annette's effortless waves and watch her hair tutorial here.