While a higher SPF generally means more protection, the difference between SPF 50 and SPF 70 is minimal. SPF 50 blocks about 98% of UVB rays, while SPF 70 blocks approximately 98.6%. This slight difference may not be significant enough to justify the extra cost or potential for thicker, less-absorbable formulas often associated with higher SPFs. For most people, SPF 50 provides sufficient protection for everyday activities.
Here are some key points to remember:
- SPF 70 offers only a marginal increase in protection compared to SPF 50.
- SPF 50 is generally sufficient for everyday sun exposure.
- Always apply sunscreen liberally and reapply every two hours, especially after swimming or sweating.
Ultimately, the best SPF for you depends on your individual needs and lifestyle. Consult a dermatologist for personalized advice.