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Rosemary is a fairly familiar plant, easy to find many, narrow, striped leaves with a very pleasant, warm scent, often used in culinary, cosmetic production. Now let’s learn some interesting facts about the essential oil of this plant.
What is rosemary essential oil?
Rosemary essential oil is mainly extracted from the leaves and flowers of the rosemary plant (Rosmarinus officinalis), a branching shrub that is very common in the Mediterranean region, known by its beautiful name “dewdrops”. of the sea”, belongs to the mint family similar to basil, lavender.
Rosemary essential oil is made from a number of methods such as steam distillation or solvent extraction, has a light, warm aroma a bit like ginger, when it is first distilled, the essential oil is usually colorless or slightly yellow. darken later .
With steam distillation, people will put the ingredients in a sealed vessel, then cook it, the steam will carry the essential oil through the condenser, condensing into a liquid mixture.
Since essential oils cannot dissolve in water and are often heavier or lighter than water, after removing water and impurities, pure essential oils can be obtained.
If using the solvent extraction method, the finished product will have a very high purity , but it may contain residual solvent impurities, so the finished product is usually not used in therapy.
Normally, for essential oils extracted from flowers, people will use a stream of hot humid air to push the essential oil out of the flower, and let the essential oil absorb into a solid absorbent such as activated carbon, then it will be desorbed with a solvent. volatile lips, from which pure essential oils will be obtained.
Uses of rosemary essential oil
According to Doctor Nguyen Thuong Hanh – Specializing in General Internal Medicine – Emergency Resuscitation, and also an Inspector at Oncology Hospital, Ho Chi Minh City, rosemary essential oil has some of the following uses.
- Improves oral health : Rosemary oil has antibacterial properties, which help prevent oral diseases such as tooth decay by eliminating Streptococcus sobrinus bacteria (a type of bacteria that causes tooth decay), periodontitis, gingivitis and plaque. cling.
- Helps to relax, reduce stress : The scent of rosemary essential oil has the ability to reduce cortisol, a hormone released by the body when we are stressed and stressed. Cortisol can upset hormone balance and disrupt metabolism, leading to mental and physical health problems.
- Deodorant : Because of its warm, pleasant aroma, rosemary essential oil is often used to produce essential oil products, room sprays, shower gels, candles and perfumes to help deodorize effectively.
- Respiratory diseases : In addition to its deodorizing effect, rosemary essential oil has also been shown to relieve congestion of the larynx, often used to treat diseases such as colds, sore throats, respiratory allergies. ,… thanks to the eucalyptol and camphor compounds present in the composition.
How to make rosemary essential oil at home
Ingredients for making rosemary essential oil
- 6 sprigs of fresh rosemary (you can also use dried rosemary, but fresh rosemary contains more minerals such as vitamins A, C, iron, calcium, .. than dried rosemary, and should be purchased at flower shops. good reputation.)
- 1 cup olive oil (jojoba, almond,…depending on use)
- Utensils: Stove, pot, sieve, cup, glass bottle with tight lid.
How to make rosemary essential oil
- Step 1: Prepare materials and tools . Wash the rosemary and remove the leaves from the stem. Wash tools and dry.
- Step 2: Cook rosemary, filter and cool . Pour olive oil into a pot, add rosemary to low heat.
- Step 3: Stir continuously for about 5-10 minutes until the oil is hot and the rosemary scent rises.
Finished product
Rosemary essential oil can be used for beauty purposes such as hair care, skin care or room steaming, deodorant, etc. However, you should note that it should be stored in the refrigerator and protected from the sun because the oil is essential. This is very perishable.
With just a few simple steps, you can make rosemary essential oil, it’s that simple, isn’t it? Hopefully, the article has brought you useful information about the effects of rosemary essential oil as well as how to make this essential oil.
>> Where to buy fresh and dried rosemary leaves in HCMC?
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