The Comparison of Sunscreen, Moisturizer, and Foundation With the Same SPF and Its Relative Reflection of UV Radiation

Sydney HookFollow

School Name

Spring Valley High School

Grade Level

10th Grade

Presentation Topic

Physiology and Health

Presentation Type

Non-Mentored

Written Paper Award

3rd Place

Abstract

The comparison of sunscreen, moisturizer, and foundation with the same SPF and its relative reflection of UV radiation. Sydney Hook Spring Valley High School, Columbia, SC Dale Soblo, Teacher, Spring Valley High School The purpose of this research was to show if pigmented cosmetics with SPF can protect skin from UV rays in the same way that a sunscreen does. It was expected that if the amount of UV rays were measured coming through a sunscreen, a tinted moisturizer, and a foundation of the same SPF, the three products would have the same relative reflection due to having the same SPF and ingredients for sun protection. This was conducted by spreading sunscreen, tinted moisturizer, and foundation of SPF 25 onto glass plates, placing them under a UV light for 2 minutes, and then measuring the UVA and UVB values coming through each plate with the different products. These methods were repeated for 30 trials, with random control trials throughout. After collecting the data, it was found that the sunscreen was most varied in its values for both UVA and UVB, as well as having the highest averages for both. The moisturizer had the lowest average for UVA and the foundation had the lowest average for UVB. An ANOVA (F (7,184)=1340.31, p<0.001) test was also conducted and showed that there was a significant difference for UVA and UVB values of the cosmetics, sunscreen, and control. However, the following Tukey test allowed the conclusion that there was no significant difference between the UVA and UVB values of the sunscreen, foundation, and moisturizer. Therefore, the hypothesis was supported and for short term use, cosmetics protect to the same degree as sunscreen.

Location

Founders Hall 142 B

Start Date

3-30-2019 11:15 AM

Presentation Format

Oral and Written

Group Project

No

COinS
 
Mar 30th, 11:15 AM

The Comparison of Sunscreen, Moisturizer, and Foundation With the Same SPF and Its Relative Reflection of UV Radiation

Founders Hall 142 B

The comparison of sunscreen, moisturizer, and foundation with the same SPF and its relative reflection of UV radiation. Sydney Hook Spring Valley High School, Columbia, SC Dale Soblo, Teacher, Spring Valley High School The purpose of this research was to show if pigmented cosmetics with SPF can protect skin from UV rays in the same way that a sunscreen does. It was expected that if the amount of UV rays were measured coming through a sunscreen, a tinted moisturizer, and a foundation of the same SPF, the three products would have the same relative reflection due to having the same SPF and ingredients for sun protection. This was conducted by spreading sunscreen, tinted moisturizer, and foundation of SPF 25 onto glass plates, placing them under a UV light for 2 minutes, and then measuring the UVA and UVB values coming through each plate with the different products. These methods were repeated for 30 trials, with random control trials throughout. After collecting the data, it was found that the sunscreen was most varied in its values for both UVA and UVB, as well as having the highest averages for both. The moisturizer had the lowest average for UVA and the foundation had the lowest average for UVB. An ANOVA (F (7,184)=1340.31, p<0.001) test was also conducted and showed that there was a significant difference for UVA and UVB values of the cosmetics, sunscreen, and control. However, the following Tukey test allowed the conclusion that there was no significant difference between the UVA and UVB values of the sunscreen, foundation, and moisturizer. Therefore, the hypothesis was supported and for short term use, cosmetics protect to the same degree as sunscreen.