After 4 months using sandalore I'm a little disappointed. At first the new growth was obvious, I had lots of short dark hairs growing on the edges of my bald spot, contrasting with my 1-inch-long mostly gray hair. (I had been using minoxidil for years, sandalore was the only change.)
That was at 6 weeks, now those sandalore hairs are all growing strong and blending in, but I don't see new short hairs any more. It's like sandalore woke up some recently deceased follicles but the rest of my bald spot refuses to join the party, no matter how long I continue using it.
Still, a 3-inch-wide bald spot is better than 4 inches. And the scattering of new hair in the middle of the spot gives Toppik something to hang onto and do a better concealing job.
I'll continue with the nightly sandalore/minoxidil mixture, but I may try going to twice per day, or adding microneedling. I'm hopeful the clinical trials going on in the UK publish results soon so we'll get a better idea of optimal dosage, frequency, and delivery vehicle.