July 2023 in “Journal of Natural Remedies” Shell ginger contains kavalactones that promote hair growth and have anti-cancer, anti-inflammatory, and anti-obesity effects.
44 citations,
January 2007 in “Biological & pharmaceutical bulletin” Black pepper leaf extract contains compounds that can block testosterone effects and promote hair growth.
2 citations,
August 2022 in “Animals” Essential oils may improve dogs' health and melatonin can help with their sleep and anxiety, but both should be used carefully.