Possible Clues:

• Hair care brand with a Miracle Rescue line
• Maker of Miracle Rescue hair products
• Head & Shoulders sister brand
• Curl Perfection purveyor
• Rival of L'Oréal
• Procter & Gamble product line
• Big name in hair care
• Pro-V hair care brand
• Procter & Gamble hair-care line
• Prell alternative