Katie Couric Media contributor and OB GYN Dr. Mary Claire Haver says patients often ask if they should use a vaginal moisturizer or a lubricant and there's a big difference. What Can You Use Instead of Lube? What You Should Use To Treat Vaginal Dryness Vaginal Lubrication: Vaginal Dryness, Vaginal Health, and More Moisturisers vs lubricantswhat's the difference for comfort? The Womens Health Clinic