Jeune Skin Care: Ask the Experts

Jeune Skin Care
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Jeune Skin Care Aestheticians

Q. What is the difference between SPF 15 and SPF 30?

woman applying sunscreen, UW Health Transformations Jeune Skin Care, Madison, WisconsinA. SPF (Sun Protection Factor) measures the amount of UV protection you receive from a sunscreen. To determine the protection level of a sunscreen, multiply the SPF rating by the amount of time it takes to develop reddened skin due to sun exposure.
This will vary individually. For example, if an individual reddens after 10 minutes in the sun, and is wearing SPF 15 (10 minutes x 15 = 150), the same degree of reddening would require 150 minutes. If the individual is wearing SPF 30 (10 minutes x 30 = 300), the same degree of reddening would require 300 minutes.
To receive the best protection, you should plan on reapplying your sunscreen every two hours while you are outdoors.
Now Available at UW Health Transformations: Anthelios SPF 40 with Mexoryl SX
Mexoryl™ SX is the new sun filter in the only sunscreen formulas that have been specifically approved by the FDA for protection against short UVA rays.
Benefits include:
  • High UVA protection
  • SPF 40
  • High photostability (resists losing efficacy in the sun)
  • Dry finish texture (non-greasy)
  • Suitable for sensitive skin
  • Fragrance-free, PABA-free