Ran GHK-Cu sub-q twice weekly for sixteen weeks stacked with fin 1mg and minox 5% topical. Honest take: the Wnt pathway angle is real, but actual regrowth was maybe 5-10% better than fin plus minox alone. Measured density at weeks 8 and 16 with a derma scale, not vibes. Worth it if you’re already locked into the combo and have the budget, but don’t expect it to fix anything fin wasn’t already handling. Still running it because the data showed something, but manage expectations.