Effects of Dimethylaminoethanol and Compound Amino Acid on D-Galactose Induced Skin Aging Model of Rat

Table 1

Experiment design (NS: 0.9% sodium chloride; AA: 3.48% compound amino acid; DMAE: dimethylaminoethanol).

	Group number	Pretreatment; (D-galactose, 6 weeks)	Microinjection; (once a week, 4 weeks)	Size (𝑛)
Aging groups	1	125 mg/kg·d	Negative control	10
	2	125 mg/kg·d	NS	10
	3	125 mg/kg·d	AA	10
	4	125 mg/kg·d	0.1% DMAE	10
	5	125 mg/kg·d	0.2% DMAE	10
	6	125 mg/kg·d	0.1% DMAE + AA	10
	7	125 mg/kg·d	0.2% DMAE + AA	10
Sham control	8			10