Joanna and Marta Krupa in bikinis (Santa Monica - 8/7)

You can tell that Joanna Krupa really cares about her sister Marta because she knows to liberally apply sunscreen on her body before she lays out in the blistering hot sun. Joanna also knows that it's important to use a sunscreen that provides both UV-A and UV-B protection. The role of sunscreen is to absorb and reflect the sun's rays so they don't burn or damage your skin, so Joanna knows it's important to use one with an SPF (Sun Protection Factor) of at least 30, which absorbs 98% of the sun's rays. Interestingly, as Joanna could tell you, SPF protection doesn't increase proportionately with the designated SPF number, so while SPF 30 absorbs 97% of the sun's rays, SPF 50 absorbs just slightly more (98%). As such, it's important to reapply sunscreen every two hours, no matter how high the SPF. Thanks Joanna! You've been a big help!

*20 Joanna Krupa bikini pictures total in the gallery:

  • Joanna Krupa Sister Bikini 1
  • Joanna Krupa Sister Bikini 2
  • Joanna Krupa Sister Bikini 3
  • Joanna Krupa Sister Bikini 4
  • Joanna Krupa Sister Bikini 5
  • Joanna Krupa Sister Bikini 6
  • Joanna Krupa Sister Bikini 7
  • Joanna Krupa Sister Bikini 8
  • Joanna Krupa Sister Bikini 9
  • Joanna Krupa Sister Bikini 10
  • Joanna Krupa Sister Bikini 11
  • Joanna Krupa Sister Bikini 12
  • Joanna Krupa Sister Bikini 13
  • Joanna Krupa Sister Bikini 14
  • Joanna Krupa Sister Bikini 15
  • Joanna Krupa Sister Bikini 16
  • Joanna Krupa Sister Bikini 17
  • Joanna Krupa Sister Bikini 18
  • Joanna Krupa Sister Bikini 19
  • Joanna Krupa Sister Bikini 20
[Pacific Coast News]

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