Does rosemary help hairgrowth?
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The Efficacy of Rosemary for Hair Growth
Rosemary and Hair Growth: An Overview
Rosemary (Rosmarinus officinalis) has been traditionally used for various medicinal purposes, including hair and scalp treatments. Recent studies have explored its potential in promoting hair growth, with promising results.
Rosemary Extracts and Hair Growth in Animal Models
Methanolic Extracts and Hair Lotion
A study formulated a 1% hair lotion using methanolic extracts of rosemary and tested it on C57BL/6 mice. The lotion showed significant hair growth-promoting activity compared to a standard 2% minoxidil treatment. The presence of proteins, amino acids, fats, oils, steroids, glycosides, phenolic compounds, flavonoids, volatile oil, and vitamins in the extract contributed to its efficacy1.
Rosemary Essential Oil
Another study investigated the effects of 3% rosemary essential oil on hair growth in C57BL/6 mice. The results indicated that rosemary oil significantly stimulated hair regrowth, with faster hair regrowth and increased hair follicle number, depth, and dermal thickness compared to control groups. The study also noted a decrease in mast cell numbers, which is associated with reduced inflammation and improved hair growth conditions2.
Combined Herbal Extracts
A study that included rosemary as part of a combined herbal extract (with Gardenia, Mentha arvensis, and Lavender) also demonstrated significant hair growth promotion in C57BL/6 mice. The herbal extract group showed faster hair regrowth and increased enzyme activities related to hair growth, comparable to the effects of 3% minoxidil3.
Rosemary Oil vs. Minoxidil in Human Trials
A clinical trial compared the efficacy of rosemary oil with 2% minoxidil in treating androgenetic alopecia (AGA) over six months. Both treatments resulted in a significant increase in hair count at the six-month mark, with no significant difference between the two groups. However, rosemary oil had fewer side effects, such as scalp itching, compared to minoxidil, suggesting it as a viable alternative for hair growth treatment5.
Rosemary's Protective Properties
In addition to promoting hair growth, rosemary extracts have been shown to protect hair from UV-induced damage. The key compounds responsible for this protective effect include polyphenols like rosmarinic acid and abietane diterpenes such as carnosic acid. These compounds act as antioxidants, safeguarding hair proteins and peptides from UV damage4.
Conclusion
The research indicates that rosemary, whether in the form of methanolic extracts, essential oil, or combined herbal extracts, can effectively promote hair growth. It shows comparable efficacy to minoxidil, a standard hair growth treatment, but with fewer side effects. Additionally, rosemary's antioxidant properties provide added benefits in protecting hair from environmental damage. These findings support the potential of rosemary as a natural and effective alternative for hair growth treatments.
Sources and full results
Most relevant research papers on this topic
Evaluation of Herbal Hair Lotion loaded with Rosemary for Possible Hair Growth in C57BL/6 Mice
The 1% herbal hair lotion incorporating rosemary extract shows significant hair growth promoting activity, making it a potential alternative to commercial hair growth promoters with undesirable effects.
Non-RCT
Animal StudyThe Promoting Effect of Rosemary Oil on Hair Growth by Gross and Histological Observation in C57BL/6 Mice
Rosemary oil effectively stimulates hair growth in an animal model, with faster regrowth and higher hair follicle number and thickness compared to saline and jojoba oil groups.
RCTAnimal StudyEffects of Herbal Extracts on Hair Growth Promotion in Experimental Animal Model
Herbal extracts, such as Gardenia, Mentha arvensis, Rosemary, and Lavender, show hair-growth promoting activity equal to minoxidil in an animal model.
RCTAnimal Study
Rigorous JournalThe key phytochemistry of rosemary (Salvia rosmarinus) contributing to hair protection against UV
Rosemary extracts, primarily composed of polyphenols and abietane diterpenes, effectively protect hair from UV-induced peptide and protein damage.
In Vitro StudyRosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial.
Rosemary oil is as effective as minoxidil 2% in treating androgenetic alopecia, with no significant difference in hair count at 3-month and 6-month endpoints.
RCTInvestigation of rosemary herbal extracts (Rosmarinus officinalis) and their potential effects on immunity.
Rosemary herbal extracts show potential as dietary ingredients with immunomodulatory functionality, but more human studies are needed to confirm this.
A Six-Month, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Safety and Efficacy of a Nutraceutical Supplement for Promoting Hair Growth in Women With Self-Perceived Thinning Hair.
Nutrafol® Women's Capsules effectively promote hair growth and overall hair quality in women with self-perceived thinning hair, addressing micro-inflammation, stress, and oxidative damage.
RCTreview on “pharmacological, phytochemical, and medicinal properties of rosmarinus officinalis (Rosemary)”
International use of natural medicinal drugs has been increasing in the last few centuries. In developing international locations, many people were using other natural remedies to meet their fitness care desires. On the opposite facet, developing countries had to make a bigger interest in medicinal herbs. The most vital difficulty in natural medicine is that their market is inadequate regulated, and very restricted statistics have been presented regarding the safety and efficacy of medicinal herbs. there's almost no side impact within the use of herbal merchandise. natural medicines provide harmless and efficient use.Rosemary consists huge form of phytochemicals along with the impact of dietary antioxidative and chemopreventive rosemary phytochemical on the feature of human drug efflux transporter Pglycoprotein and multidrug resistance protein 1 .The effect of natural phytochemical found in rosemary inclusive of carnosic acid , carnosol , rosemarinic acid , and ursolic acid and different many additives. Rosemary appears to boom blood circulation while applied to the scalp, which would possibly assist hair follicles develop. Rosemary extract may additionally help guard the pores and skin from solar harm.
Rigorous JournalMechanism of action of herbs and their active constituents used in hair loss treatment.
Herbs and their active constituents stimulate hair growth through various mechanisms, while inhibitory mechanisms inhibit hair growth.
Commonly used hair oils in the Black community: a narrative review in their use to treat androgenetic alopecia
Hair oils, such as castor oil and pumpkin oil, have become increasingly popular in the Black community for treating androgenetic alopecia.
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