I was on Hair Signals (liquid Folligen) for about 2 month and I lost faith due to the following reasons...
While the big 3 has given me visible and consistent results, when I began Hair Signals, I felt like I was exploring Mars because unlike minoxidil or finasteride which initiated huge shed waves, Folligen/Hair Signals just wasn't designed to react that way. Instead, it burned my scalp upon application and left burnt holes/blackheads/inflammed tiny scabs/green residues on my hairline. At first, this burning sensation upon application inspired confidence, however upon daily usage, this soon became an annoying hassle. The inflammation eventually went away but the way the product left entrenched green residues/crystallized particles on my hairline daily did not.
Upon inquiring on this wonderful forum, I downgraded my dosage to drops. However, upon continuous usage of this product daily, I noticed the product continues to taint my pillows, my hat, and attracted worried questions from onlookers and families. There is also a very strong men's cologne scent that is attached to this product, I'd describe this scent ranges from rotten eggs to turn of the mill big fashion corporate cologne scents depending on the eye of the beholder.
Not a very incognito product.
I have no doubt there are good science behind Copper Peptides. However, I could no longer stand Folligen/Hair Signals' unfriendly smell. One could only bear with a great product for so much until it become ridiculously difficult to utilize. If you are having a hard time trying to fit minoxidil into your daily schedule. My advise is don't pick up Folligen. I am certain my experiences with Folligen is not singular, as other members on this forum will concur.
Best of luck!!