Dry lips can often be a sign of certain vitamin deficiencies. The most common deficiencies associated with dry lips include: B Vitamins: Deficiencies in B vitamins, particularly B2 (riboflavin), B3 Zara What Your Lips Say About Your Health! Dark, dry, swollen, or cracked lips can reveal more than you think from vitamin deficiencies to gut imbalance. Nourish your body from within with Vitamin C Deficiency Symptoms You Should Never Ignore Dr. Sethi If you've been feeling run down or noticing unusual changes in your body, this video is a must watch. Follow @doctor.sethi for The Impact of Vitamin Deficiencies on Oral Manifestations in Children Vitamin B Deficiency: How It Affects Your Mouth and Causes Angular Cheilitis Your Perfect Smile