Obagi Nu-Derm Healthy Skin Protection SPF 35 provides broad-spectrum UVA/UVB protection. It helps prevent sunburn from UVB radiation and protects against long-UVA rays linked to deep premature skin-aging. It contains 9% micronized zinc oxide – the highest concentration compared to major competitors – and provides the best UVA coverage available. It also contains octyl methoxycinnamate, a non-irritating UVB-fighting ingredient. Ideal for everyday use.