UCLA scientists found a molecule — PP405 — that wakes up sleeping hair follicles and tells them, “Do your job.” Research/Science 5/12/2025
PP405 is a promising molecule that may reactivate dormant hair follicles, potentially offering a new treatment for hair loss. It is in phase 2 trials, with possible availability between 2027 and 2030.
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5 / 71 resultscommunity Molecule PP405: A Research Team Backed By Google Ventures Has Discovered One Of The Most Promising Solutions For Hair Loss To Date
PP405 is a promising new treatment for hair loss that activates dormant stem cells in hair follicles, potentially bypassing the effects of DHT. It is currently in phase 2 trials and could be available between 2027 and 2030, but it is not considered a definitive cure.
community New molecule PP405 vs exercise
PP405 targets hair follicle stem cells differently than exercise-induced lactate, suggesting exercise alone may not replicate its benefits. Minoxidil and finasteride are recommended alongside exercise for hair regrowth, with additional suggestions like spicy food and infrared exposure.
community Update for PP405 - phase 2b underway
PP405 is advancing to Phase 2b trials, showing promise from Phase 2a. It may be available in 3-6 years, with trials using a topical gel.
community My summation of PP405 - looks promising
PP405 shows promise for hair regrowth by manipulating stem cell characteristics and lactate dehydrogenase, with Phase 2a trials pending. Google Ventures' $15M investment suggests confidence, but results and market availability remain uncertain.
community Confused why people are calling PP405 a cure...it never claimed to be able to undo miniaturization or revert vellus back to terminal hairs. It seems to be more of a growth stimulant like minoxidil.
PP405 is not a cure for hair loss but may reactivate dormant hair follicles, similar to minoxidil. It is unlikely to help with miniaturized or vellus hairs and is still in trial phases, with availability expected around 2030.
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