Purified Astaxanthin from Haematococcus pluvialis Promotes Tissue Regeneration by Reducing Oxidative Stress and the Secretion of Collagen In Vitro and In Vivo

Figure 1

Cell viability of UVB with HPE and HPA 24 hr treatments in a MTT assay. (a) Human skin HaCaT and Hs68 cells were seeded in 96-well microliter plates at a density of cells/well and exposed to UVB at 5, 15, 30, and 50 mJ/cm². Cells were treated with 1, 5, 25, 50, and 100 μg/ml of (b) HPE and (c) HPA for 24 hrs. Cells were exposed to 5, 15, 30, and 50 mJ/cm² and treated with 1, 5, 25, 50, and 100 μg/ml of (d) HPE and (e) HPA for 24 hrs. The data is shown as a (SD) for three independent experiments: .

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