"It's common to experience hair thinning or hair loss as you get older. Your hair may also start falling out as a result of lifestyle habits, such as having a poor diet or overusing hot styling tools. If this is happening, you may be wondering how to grow your hair out and make it look healthier, and if essential oils can help with hair growth.
Yoram Harth, M.D., a board-certified dermatologist and the medical director of MDhair, says, "Some essential oils can trigger new hair growth and prevent future fallout by improving scalp health, making them an excellent addition to hair-loss treatments and other scalp conditions.""
https://www.eatingwell.com/article/7935181/best-essential-oils-for-hair-growth/
"When it comes to using essential oils for hair, there are plenty of beneficial choices. Whether you are looking to thicken your hair, treat dandruff and dry scalp, give your hair strength and shine, or lighten your hair naturally, essential oils are much safer and just as effective as conventional hair care products.
They are also more cost-effective — one bottle of your favorite essential oil can not only nourish your hair, but it can help reduce stress, alleviate pain and fight skin infections as well. Plus, essential oils are all-natural, which means they are free of dangerous chemicals and better for the environment and your home, too."
https://draxe.com/essential-oils/essential-oils-for-hair/
"Essential oils are extracted from plants through methods like distillation or evaporation. While essential oils are most famous for their aromatic capabilities, they also contain strong chemical properties that can be beneficial for health.
Essential oils have long been used in alternative, Eastern, and homeopathic medicines thanks to their effectiveness and low risk of side effects.
One benefit some essential oils have is improving hair health. Different oils can do everything from helping hair grow to adding strength and shine."
https://www.healthline.com/health/essential-oils-for-hair-growth#_noHeaderPrefixedContent
"While more research is needed, some evidence does exist to suggest that essential oils can help hair to grow healthier and stronger."
https://www.medicalnewstoday.com/articles/321877#best-essential-oils
Essential Oils for Your Hair
https://www.webmd.com/beauty/natural-oils