Topical minoxidil should work well for your eyebrows. With consistent steady use, those vellus hairs should thicken and darken over time. It’s not medically approved for anywhere but the scalp, but that doesn’t mean it doesn’t work elsewhere. Hell, many men have used it to grow facial hair with good...
I agree with Ritchie. From the provided pictures I don’t see any blatant indication of hairloss. To be honest, your hairline looks a lot like mine did at 20, and guess what? It still looks the same at 33. Just keep an eye on it. Nothing to worry about, yet at least :)
Yes they can. Those miniature hairs indicate that your responding to the finasteride and minoxidil. As long as you continue treatment those hairs should continue to grow and slowly but surely thicken.
I agree, you really should start taking action now if you hope to save what you have. You don’t want to end up a year down the line, with significantly less hair, asking yourself: what if.