Lactoferrin is a protein found in milk. A study has found that the protein increases dermal papila proliferation, which results in increased hair growth (at least in mice). Lactoferrin therefore has potential as a hair loss treatment.
Sandalore is a perfume chemical designed to smell like Sandalwood. Amazingly though, researchers have discovered that the chemical binds to receptors in the scalp, causing the hair growth phase length to increase and an increase in IGF-1 secretion, leading to increased hair growth.