No it’s not similar..
I just read The Limitations of TrichoStem® Treatment
TrichoStem® cannot bring back lost hair follicles, nor can it activate “dead” hair follicles. It can only work on existing hair follicles that are still active and present on the head, as well as thicken thinned out hair that is almost invisible.
TrichoStem® is more effective on patients experiencing hair loss and hair thinning, as opposed to severe hair loss patients who exhibit a completely smoothed scalp and total frontal hair loss”
https://www.trichostem.com/why-trichostem-hair-regeneration/trichostem-technology/
Trichostem doesn’t regenerate lost or dead follicles like the hair follicles in the donor area it’s like plasma (PRP) there is a limitation