Baseline

After 8 weeks

Observed effect

Paired t test p-value

Effect Size (ES)

Mean

(SD)

Mean

(SD)

Mean

(SD)

Total, n = 40

Surface spot

59.24

(14.67)

55.97

(14.03)

3.28

(6.09)

0.0016

0.22

Wrinkles

12.13

(7.94)

10.22

(6.75)

1.92

(5.94)

0.0479

0.24

Texture

476.08

(255.08)

397.43

(212.42)

78.66

(132.81)

0.0006

0.31

Pores

241.93

(105.72)

219.53

(92.52)

22.41

(42.58)

0.0019

0.21

Red Area

116.28

(26.90)

116.29

(33.71)

-0.02

(32.97)

0.9975

-0.00

30 - 50 years, n = 25

Surface spot

55.85

(14.34)

53.23

(14.61)

2.63

(5.61)

0.0278

0.18

Wrinkles

8.15

(4.82)

8.48

(6.27)

-0.33

(5.07)

0.7452

−0.07

Texture

364.08

(165.23)

346.01

(186.62)

18.07

(69.82)

0.2081

0.11

Pores

211.04

(102.77)

207.71

(97.81)

3.33

(22.72)

0.4704

0.03

Red Area

111.68

(28.13)

108.13

(24.82)

3.55

(20.37)

0.3927

0.13

50 - 65 years, n = 15

Surface spot

64.89

(13.88)

60.53

(12.10)

4.36

(6.89)

0.0280

0.31

Wrinkles

18.78

(7.74)

13.11

(6.71)

5.67

(5.47)

0.0013

0.73

Texture

662.76

(273.34)

483.11

(231.09)

179.64

(152.62)

0.0004

0.66

Pores

293.42

(92.13)

239.22

(82.35)

54.20

(49.32)

0.0008

0.59

Red Area

123.93

(23.64)

129.89

(42.34)

-5.96

(47.49)

0.6347

−0.25