pp405 cure baldness @@claude-sonnet-4

Based on the latest information from UCLA, there's exciting news about a potential breakthrough in hair loss treatment called PP405 (not PPO4). UCLA scientists have developed a small molecule that appears to reawaken dormant hair follicles.

Here's what we know about PP405:

**How it works:** The molecule targets a protein in follicle stem cells that keeps them dormant. When PP405 is applied, it inhibits this protein and wakes up the stem cells, potentially restoring hair growth.

**Early results:** In the first human trials conducted in 2023, researchers applied PP405 as a topical treatment to the scalp at bedtime for one week and found "statistically significant" results. The treatment appears to produce full "terminal" hair rather than just peach fuzz.

**Who's behind it:** Three UCLA professors - William Lowry, Heather Christofk, and Michael Jung - have been working on this for almost a decade. They've founded Pelage Pharmaceuticals, which has raised $16.4 million in funding backed by Google Ventures.

**Current status:** The treatment is still in clinical trials and awaiting FDA approval. The researchers are cautious but optimistic, noting that while no treatment works for everyone, the early human trials have been "very encouraging."

**Target audience:** This could potentially help the more than half of men and one-fourth of women who experience pattern hair loss by age 50, as well as those who lose hair due to chemotherapy or other stressors.

While this isn't a cure yet, it represents one of the most promising developments in hair loss treatment in recent years. The researchers emphasize that FDA approvals take time, but they believe it will be worth the wait.