Topical zinc, primarily as zinc oxide, acts as a physical barrier against UV radiation, a primary driver of skin aging (photoaging). It also possesses anti-inflammatory, antimicrobial, and antioxidant properties that aid in wound healing and maintaining the skin barrier. By protecting against UV damage and supporting skin repair, it helps preserve skin structure and function, a key component of healthspan.
Verdict
A foundational tool for preserving long-term skin health and preventing photoaging.
HEALTHSPAN IMPACT
Moderate
RISK LEVEL
Very Low
EVIDENCE GRADE
A
MONTHLY COST
$5 - $25
Protocol
- Apply a thin layer of zinc oxide (10-40%) cream or sunscreen to sun-exposed skin daily.
- Use zinc pyrithione (1-2%) shampoo 2-3 times per week for scalp health.
- Apply zinc oxide ointment to minor skin irritations or wounds as needed.
Flags
- Avoid use on deep or puncture wounds without medical advice.
- Rarely, may cause minor skin irritation, redness, or itching.
- Zinc pyrithione is for external use only and should not be ingested.