Bryan Johnson uses a scalp massager three times a day to stimulate blood flow when applying hair growth serum.

“I shampoo all out these serums and then do the Blueprint scalp treatment letting it sit for two min.”

“hair serum, scalp massage”

“then I put a cap on my head for hair growth”

“I use it three times a day. So, when I apply things to my hair, like a growth serum I use this to massage my scalp, it stimulates blood flow.”