Is a higher SPF always better?Updated 15 hours ago

Not necessarily. While higher SPF numbers do offer more protection, the increase is minimal beyond SPF 30:

• SPF 15 blocks about 93% of UVB rays

• SPF 30 blocks about 97%

• SPF 50 blocks about 98%

• SPF 100 blocks about 99%

So, while SPF 100 sounds much stronger, it only offers about 2% more protection than SPF 30. What matters more than just the SPF number is:

• Applying enough sunscreen (most people apply too little)

• Reapplying every 2 hours, or after swimming/sweating

• Choosing a broad-spectrum formula that protects against both UVA and UVB rays

Higher SPFs can also:

• Give a false sense of security, causing people to stay in the sun longer

• Be thicker or more irritating for sensitive skin

• Often cost more, without offering significantly better protection

An SPF 30+ broad-spectrum sunscreen, applied generously and consistently, is usually sufficient for daily use.

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