I must be a bit fortunate for chest hair, even though I didn't feel that way. My hair was always thick and long, but somewhat sparsely covering the area. Nair did nothing to it, but my skin didn't get bumps when I shaved and I had to shave every other day. Now, I need to shave every week and a half or less. After 9 months on HRT it is growing slower, thinner, lighter, and with far fewer hairs. They are still bit scratchy, but I think that is due to the shaving, I'm thinking about plucking the last few that grow in dark and let the others wear down to stop being scratchy.