1. Discourages Hair Loss and Boosts Growth
A randomized comparative trial published in 2015 looked at the effectiveness of rosemary oil on hair loss due to androgenetic alopecia (AGA) compared to a common conventional form of treatment (minoxidil 2%). For six months, 50 subjects with AGA used rosemary oil while another 50 used minoxidil. After three months, neither group saw any improvement, but after six months, both groups saw equally significant increases in hair count. So the natural rosemary oil performed as well hair loss remedy as the conventional form of treatment and also caused less scalp itching compared to the minoxidil as a side effect.
Animal research also demonstrates rosemary’s ability to inhibit DHT in subjects with hair regrowth disrupted by testosterone treatment.
2. Improves Memory
Rosemary helped people become more alert.
After inhaling the vapor of rosemary oil and lemon oil in the morning, and lavender and orange oils in the evening, various functional assessments were conducted and all patients displayed significant improvement in personal orientation in relation to cognitive function with no unwanted side effects. Overall, the researchers concluded that “aromatherapy may have some potential for improving cognitive function, especially in AD patients.”
3. Liver Boosting
Traditionally used for its ability to help with gastrointestinal complaints, rosemary is also a fantastic liver cleanser and booster. It’s an herb known for its choleretic and hepatoprotective effects. In case you’re not impressed, let me define these two qualities. First, being described as “choleretic” means that rosemary is a substance that increases the amount of bile secreted by the liver. Hepatoprotective means the ability of something to prevent damage to the liver.
Animal research reveals that rosemary (and olive) leaf extracts provide liver protective benefits to animal subjects with chemically-induced liver cirrhosis. Specifically, the rosemary extract was able to inhibit the unwanted functional and tissue changes to the liver that result from cirrhosis.
4. Lowers Cortisol
A study was conducted out of Meikai University, School of Dentistry in Japan that evaluated how five minutes of lavender and rosemary aromatherapy affected the salivary cortisol levels (the “stress” hormone) of 22 healthy volunteers.
Upon observing that both essential oils enhance free radical scavenging activity, they also discovered that both greatly reduced cortisol levels, which protects the body from chronic disease due to oxidative stress.
5. Cancer Fighting
In addition to being a rich antioxidant, rosemary is also known for its anti-cancer and anti-inflammatory properties. One of rosemary’s main active components is carnosol. According to a recent article published in the journal Cancer Letters, “Carnosol has been evaluated for anti-cancer property in prostate, breast, skin, leukemia, and colon cancer with promising results.” In addition, carnosol appears to have “a selective toxicity towards cancer cells versus non-tumorigenic cells and is well tolerated when administered to animals.”(14)
In other words, carnosol acts like a military sniper who only takes out his enemy target and doesn’t damage neighboring cells, unlike the chemotherapy nuclear-bomb approach that kills everything along its path.
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