Zinc Oxide
What is Zinc Oxide?
Zinc Oxide is a sunscreen ingredient that protects the skin from harmful UVA and UVB radiation. It provides uv protection, physical/mineral protection and broad spectrum benefits. It's particularly beneficial for addressing sun damage, photoaging and sunburn. among other skin concerns. Results are typically seen in the immediate protection (while applied). It is most effective at a concentration of 5-25%. As a physical sunscreen filter, it sits on top of the skin and reflects UV rays away.
Perfect For
Oily: Highly beneficial - helps regulate sebum production and reduces breakouts
Dry: Neutral effect on dry skin
Sensitive: Neutral effect on sensitive skin
Combination: Depends on specific formulation and application technique
Mature: Neutral effect on mature skin
Key Benefits
Core Competencies
Ingredient Interactions
Works well with: antioxidants, niacinamide, hyaluronic acid, peptides
Avoid combining with: potential irritants, ingredients that break down UV filters
Notes: Apply as final step in morning routine; allow chemical sunscreens to bond with skin before sun exposure
References
Strength: Strong - Multiple clinical trials
Key Studies:
• Seité S, et al. Photodermatology, Photoimmunology & Photomedicine (2010): Study on broad-spectrum protection
• Rigel DS, et al. Journal of the American Academy of Dermatology (2018): Research on skin cancer prevention
• Hughes MC, et al. Journal of Clinical Oncology (2013): Study on long-term sunscreen use and cancer risk
Mechanisms:
• Physical filters reflect and scatter UV radiation
• Chemical filters absorb UV radiation and convert to heat
• Prevents DNA damage from UV exposure
• Reduces oxidative stress from sun exposure