MIRU
Evidence recordApplied to skin
Sunscreen / SPF
Answer
One of the best-studied things you can do in relation to keeping skin looking younger over time. The prevention step that’s hard to beat.
Check the formulaEvidence grade
Strong
Several consistent, relevant sources or an authoritative synthesis support this bounded claim.
Where it stops
Not stated in this record yet
Sources
Sources · 1
- Design
- Randomized controlled trial
- Duration
- 4.5 years
- Reported numbers
- 24%, 95% CI 0.59–0.98
- Measured outcome
- skin aging
- Studied formulation
- broad-spectrum SPF 15+, daily
Finding
RCT, 4.5 years: daily-sunscreen group showed 24% less skin aging than discretionary use (OR 0.76, 95% CI 0.59–0.98).