I recently embarked on an eyebrow mission and this is what happened in my case and what discovered along the way.
1. my eyebrows were thin because I didn't realize I was always fondling and pulling on them, and any number of eyebrow hairs were coming out per day and the biggest part of my problem was me pulling them out. I didn't really even notice but then until committed to stop. I also tried a few other things.
2. using an eyebrow conditioner is worth it, keeps the follicles healthy and stops hair from falling out or breaking as much. I started using an eyebrow conditioner at the beginning when i wanted them to grow back thick and healthy, but nowadays i use a kind of expensive nighttime face moisturizer that has peptides and other good stuff that the conditioner had so i just make sure I rub some in my brows
3. actually tried this
>>18488467 as an experiment. I believe it would have worked if i stuck with it, but I found I kept getting vertigo at night and only when I dabbed that shit in my eyebrows. that means I was absorbing minoxidil into my head somehow (eyes etc) which is a serious health risk and needs to be avoided at all costs. so I stopped with the minoxidil and just stuck with the peptides and moisturiser
and finally, 4. I bought this stuff on a whim to see if it would ease up on some of my grey hairs (spoiler - it works really well). I used it on my eyebrows once and it actually managed to darken them a little and they look wwwwway thicker now. now this shampoo is a super gradual hair darkener, they say it'll take 1-2 weeks of daily use to erase a lot of grey hairs, but honestly on my eyebrows I could swear I could tell the difference after one use. I used it for a few days until I was happy and now I think if I use it a coupe times a week it'll maintain.
aside from the face moisturizer routine and the not plucking my own brows, all this stuff I did just for fun and as a little project, and I won't be doing the blending shampoo nonsense forever