Table 2.

Incidence of Histological Observation After 30 Days

Parameter examined	Ideal	Group 1: 3D printed keratin	Group 2: keratin cream	Group 3: no treatment	Group 4: 3D printed keratin + Halofuginone
Hyperkeratosis	Absent	1/6	4/6	1/6	1/6
Epidermal hyperplasia	Absent	0/6	0/6	0/6	0/6
Hair follicle	Present	6/6	5/6	6/6	4/6
Apocrine glands	Present	6/6	6/6	6/6	6/6
Smooth muscle	Present	0/6	2/6	3/6	2/6
Collagen orientation	Normal (+3)	0/6	0/6	0/6	0/6
	Abnormal (+2)	0/6	0/6	0/6	0/6
	Abnormal (+1)	5/6	6/6	6/6	5/6
Inflammation	Absent	1/6	2/6	3/6	2/6
Vascular proliferation	Absent	0/6	1/6	0/6	1/6

3D, three-dimensional.