When I was getting tiger stripes I found the Halo Headband Bandana worked best and slowed the sweat. Halo has discounts at times.

Recently got a Bontrager road helmet with the Wavecel. It was on sale and I needed a road helmet. I had fallen and my old helmet hit the asphalt. Anyway the Wavecel cuts down on the sun and is not hot if moving. I was surprised. I would not use it for mountain bike single track. I just use the Halo headband with the Wavecel helmet. Slows the sweat.