SPF 20. Clinically Shown to: Lock-in moisture; restore visibly healthier lips in 3 days. No. 1 doctor recommended brand. Lips are the most fragile skin on the body, making them susceptible to dryness and sunburn. Neosporin Lip Health daily hydration therapy is clinically shown to restore visibly healthier lips in 3 days by reducing dryness, and it contains SPF 20 to protect against sunburn. Its penetrating formula replenishes essential lipids and contains emollients, vitamins, and a peptide that nourish and help strengthen the lips. Plus, the unique formula is clinically shown to lock-in moisture. For nighttime nourishment, try Neosporin Lip Health Overnight Renewal Therapy.