Rosemary's Benefits For Skin & Hair Care + How To Use It At Home

mbg Contributor By Melanie St. Ours
mbg Contributor
Melanie St. Ours is an author and clinical herbalist living in the Baltimore, Maryland area, who works with clients from all over the world through her private practice, Psyche & Soma. She specializes in both women's and mental health, and has been featured in Reader's Digest, Vice, and Parade.
Medical review by Roxanna Namavar, D.O.
Doctor of Osteopathic Medicine & Psychiatrist
Roxanna Namavar, D.O. is an adult psychiatrist focusing on integrative health. She completed her residency training at the University of Virginia Health-System and currently has a private practice in New York City.
Rosemary's Benefits For Skin & Hair Care + How To Use It At Home

Rosemary's use in medicine and religious ritual dates back to antiquity, and we have evidence that the plant was highly valued in Egypt, Greece, and Rome—part of the lore was for the beautification of the skin and hair. Here, everything you need to know about the plant with regards to hair and skin.

Rosemary in skin care.

Rosemary's antioxidant and antibacterial properties make it especially well suited for skin care, especially for acne. Whole-plant extract has been shown not only to reduce the inflammation associated with acne but to directly fight the bacterium that causes acne outbreaks. In addition to the benefits of applying rosemary topically to acne-prone skin, consuming rosemary by mouth has been shown to afford the skin some protection from UV damage (still—don't skip your mineral sunscreen!).

If you have acne-prone skin, a simple toner made from witch hazel, rosewater, and rosemary can soothe inflammation and stop breakouts.

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Rosemary Witch Hazel Toner

Ingredients

  • ¼ cup fresh rosemary
  • ½ cup witch hazel hydrosol (alcohol-free)
  • ¼ cup rosewater

Method

  1. Add all ingredients to a small saucepan and bring to a simmer. As soon as small bubbles start to form, turn the heat off and cover the pot with a lid. Let steep until cool to the touch.
  2. Strain the finished infusion and store in a clean and labeled glass jar. Use within 2 months.
  3. To apply: Pat into clean skin twice per day, or apply to clean skin with a spritzer bottle.
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Rosemary oil for hair and scalp.

Both Western herbal traditions and modern scientific evidence show that rosemary is a valuable herb for people focusing on hair and scalp health. A 2015 randomized comparative trial found that rosemary essential oil was just as effective as minoxidil (brand name Rogaine) for reversing hair loss caused by androgens, which is the most common cause of lasting hair loss for healthy adult men and women.

To attempt to get a similar benefit from rosemary essential oil that you'd get from minoxidil, replicate the concentration used in the 2015 study by making a 2% dilution of rosemary essential oil in a base of jojoba oil or aloe vera gel. Apply the mixture to your scalp every night, and stick with this regimen for at least six months—that's how long it took for study participants to achieve results. Of course, talk to your doctor before trying anything different from your routine.

However, if the results don't work for you, you should know that not everybody agrees that rosemary oil is good for hair loss. Integrative dermatologist Cybele Fishman, M.D., said while she has not found it effective for hair loss, "it is an impressive antifungal."

Regardless, regularly treating your scalp with an anti-inflammatory, antibacterial, and hydrating treatment (thanks to the aloe or jojoba base) is good practice. Or if your hair is on the drier side, and you're looking to clean the scalp regularly, you might consider an apple cider rinse, combined with rosemary.

Hair & Scalp Treatment With Rosemary

Ingredients

  • 12 drops rosemary essential oil (verbenone chemotype)
  • 1 fluid ounce (30 mL) jojoba oil or aloe vera gel

Method

  1. Combine rosemary essential oil and the jojoba oil or aloe vera in a small jar or bottle.
  2. Shake to combine, and label the bottle clearly.
  3. To apply: Massage 1 to 2 teaspoons of the mixture into the scalp in the evening.
  4. Leave on at least 8 hours before shampooing.
  5. If using aloe vera gel, store in the fridge and use within 1 week.
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Rosemary & Apple Cider Vinegar Hair Rinse

Ingredients

  • 1 cup apple cider vinegar
  • ½ cup fresh rosemary sprigs, loosely packed
  • ¼ cup dried rosemary leaves
  • 2 cups water

Method

  1. Add apple cider vinegar and fresh rosemary to a glass jar and let steep for 2 to 3 weeks, until the rosemary leaves lose their bright green color and the vinegar takes on an herbal fragrance. (Mason jars work well, but use a plastic lid. Vinegar can erode the standard rubber and metal lids.)
  2. Once the vinegar is finished steeping, remove the fresh rosemary sprigs and make a decoction of dried rosemary to add to the vinegar.
  3. For the decoction, add 2 cups water and ¼ cup dried rosemary leaves to a small saucepan and bring to a boil. Turn the heat down to a simmer and cook until the volume is reduced by half. Remove from the heat and allow the mixture to cool before straining.
  4. Add the strained rosemary decoction to the jar of infused vinegar. Label the jar, including the date and ingredients. Store at room temperature away from bright light up to 1 year, but use within 3 months for best results.
  5. When you're ready to use the treatment, measure out ¼ cup into a plastic container that's safe to take into the shower or bath. Before shampooing your hair, pour the treatment generously over your scalp and roots. Massage it into your hair thoroughly, then shampoo and condition as normal.
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Rosemary: Should you use the whole plant or essential oil?

Essential oils are a vital part of herbal medicine. But remember, essential oils are just one of the many types of beneficial compounds produced by plants. Nature doesn't produce them in concentrated form, and healing traditions from around the world mostly relied on whole plants subjected to only minimal processing in the form of cooking, extracting in liquid, or drying. Many of these techniques extract the essential oils of a plant along with other beneficial compounds.

When only the concentrated rosemary essential oil will do, use it. Otherwise, it's much more sustainable to use the whole plant. Besides, rosemary is easy to grow—and there's nothing more potent or satisfying than making remedies with herbs you've grown yourself!

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