Table 6. Effects of heath heather tea on cell viability, pro-collagen typeⅠC peptide production and MMP-1 secretion of HS68 cell

Heath heather (μg/mL)	Hs68 cells
	Cell viability (%)	MMP-1 (ng/mL)	pro-collagen type I C (ng/mL)
Control	100.00±0.45	14.08±1.05	4,163.12±213.13
25	99.61±3.29	11.88±1.05	3,598.66±151.06
50	95.95±2.87	8.57±0.84***	3,424.56±76.84
100	94.45±0.58	8.97±1.35**	3,343.37±184.40
200	103.09±3.95	7.34±0.74***	2,884.19±181.88

p<0.05,
p<0.01,
p<0.001.