Table 1.

Comparison of the mean scores for skin parameters during 12 weeks of azelaic and pyruvic acid treatment.

Parameters	Before treatment			After treatment
	M	SE	95% CI	M	SE	95% CI
Pyruvic acid group (n = 60)
Oiliness	45.94	2.49	[41.02, 50.86]	27.85	2.82	[22.26, 33.43]
Peeling	15.66	0.23	[15.20, 16.11]	14.72	0.34	[14.04, 15.39]
Porosity	0.31	0.01	[0.30, 0.33]	0.23	1.61	[− 2.96, 3.42]
Moisture T	29.95	1.44	[27.11, 32.79]	30.28	1.35	[27.62, 32.95]
Moisture U	31.03	1.15	[28.76, 33.31]	32.68	1.17	[30.37, 35.00]
SHVSS	2.60	0.06	[2.47, 2.73]	1.47	0.07	[1.34, 1.60]
Azelaic acid group (n = 60)
Oiliness	49.58	2.49	[44.66, 54.51]	36.72	2.82	[31.13, 42.30]
Peeling	15.60	0.23	[15.15, 16.05]	14.75	0.34	[14.07, 15.42]
Porosity	0.35	0.01	[0.33, 0.36]	2.56	1.61	[− 0.63, 5.75]
Moisture T	27.65	1.44	[24.81, 30.49]	28.30	1.35	[25.63, 30.97]
Moisture U	33.02	1.15	[30.74, 35.29]	34.22	1.17	[31.90, 36.53]
SHVSS	2.57	0.06	[2.44, 2.69]	1.50	0.07	[1.37, 1.63]