Table of Contents
Neem is a fast-growing tree that can reach a height of 15– 20 metres (49– 66 feet), and hardly ever 35– 40 m (115– 131 ft). It is deciduous, shedding much of its leaves during the dry winter season. The branches are broad and spreading. The relatively thick crown is roundish and may reach a diameter of 20– 25 m (66– 82 feet). The neem tree is comparable in look to its relative, the chinaberry (Melia azedarach).
The opposite, pinnate leaves are 20– 40 cm (8– 16 in) long, with 20 to 30 medium to dark green brochures about 3– 8 cm (1 +1 ⁄ 4– 3 +1 ⁄ 4 in) long. The terminal leaflet typically is missing out on. The petioles are short.
White and fragrant flowers are set up in more-or-less drooping axillary panicles which are up to 25 cm (10 in) long. The inflorescences, which branch as much as the third degree, bear from 250 to 300 flowers. An individual flower is 5– 6 mm (3⁄16– 1⁄4 in) long and 8– 11 mm (5⁄16– 7⁄16 in) wide. Protandrous, bisexual flowers and male flowers exist on the same specific tree.
The fruit is a smooth (glabrous), olive-like drupe which varies fit from lengthen oval to nearly roundish, and when ripe is 14– 28 mm (1⁄2– 1 +1 ⁄ 8 in) by 10– 15 mm (3⁄8– 5⁄8 in). The fruit skin (exocarp) is thin and the bitter-sweet pulp (mesocarp) is yellowish-white and very fibrous. The mesocarp is 3– 5 mm (1⁄8– 1⁄4 in) thick. The white, difficult inner shell (endocarp) of the fruit encloses one, rarely two, or 3, extended seeds (kernels) having a brown seed coat.
The neem tree is often confused with a comparable looking tree called bakain. Bakain also has actually toothed leaflets and similar looking fruit. One difference is that neem leaves are pinnate however bakain leaves are two times- and thrice-pinnate. 
Neem is a tree. The bark, leaves, and seeds are utilized to make medication. Less frequently, the root, flower, and fruit are also used.
Neem leaf is used for leprosy, eye disorders, bloody nose, intestinal worms, stomach upset, loss of appetite, skin ulcers, diseases of the heart and capillary (heart disease), fever, diabetes, gum disease (gingivitis), and liver issues. The leaf is also used for birth control and to cause abortions.
The bark is utilized for malaria, stomach and intestinal tract ulcers, skin diseases, pain, and fever.
The flower is utilized for reducing bile, controlling phlegm, and dealing with digestive tract worms.
The fruit is used for hemorrhoids, digestive worms, urinary system conditions, bloody nose, phlegm, eye disorders, diabetes, injuries, and leprosy.
Neem twigs are utilized for cough, asthma, hemorrhoids, intestinal tract worms, low sperm levels, urinary disorders, and diabetes. People in the tropics sometimes chew neem twigs instead of utilizing toothbrushes, but this can trigger illness; neem twigs are typically infected with fungi within 2 weeks of harvest and ought to be prevented.
The seed and seed oil are utilized for leprosy and digestive tract worms. They are also used for birth control and to trigger abortions.
The stem, root bark, and fruit are used as a tonic and astringent.
Some individuals use neem straight to the skin to treat head lice, skin diseases, injuries, and skin ulcers; as a mosquito repellent; and as a skin softener.
Inside the vaginal area, neem is utilized for contraception.
Neem is likewise used as an insecticide. 
Neem is most likely belonging to the Indian subcontinent and to dry areas throughout South Asia. It has actually been introduced to parts of Africa, the Caribbean, and numerous counties in South and Central America. The plant has actually long been utilized in Ayurvedic and folk medicine and is utilized in cosmetics and in organic farming applications. 
Active Substances of Azadirachta indica L. (Neem)
Azadirachta indica L. (neem) shows therapeutics function in health management due to abundant source of different types of active ingredients. The most important active constituent is azadirachtin and the others are nimbolinin, nimbin, nimbidin, nimbidol, sodium nimbinate, gedunin, salannin, and quercetin. Leaves consist of active ingredients such as nimbin, nimbanene, 6-desacetylnimbinene, nimbandiol, nimbolide, ascorbic acid, n-hexacosanol and amino acid, 7-desacetyl-7-benzoylazadiradione, 7-desacetyl-7-benzoylgedunin, 17-hydroxyazadiradione, and nimbiol. quercetin and ß-sitosterol, polyphenolic flavonoids, were cleansed from neem fresh leaves and were understood to have anti-bacterial and antifungal properties and seeds hold important constituents consisting of gedunin and azadirachtin. 
Residence of Neem:
Neem, due to its prospective homes, has been utilized in Ayurvedic medicine for more than 4000 years. Neem products have a number of residential or commercial properties and might have applications in various fields making neem a green treasure.
- It may have anti-allergenic activity
- It might have anti-dermatic activity and may be practical for skin diseases like acne eczema, psoriasis
- It may have anti-inflammatory activity
- It might have antipyretic activity (fever-reducing)
- It might have anti-scabies activity and might be handy for scabies, a scratchy skin problem
- It might have anti-diabetic activity
- It might have an anti-cancer capacity
- It may have diuretic activity and may help the body eliminate extra fluid (by making more urine)
- It may have an insecticidal activity and might help in ruining or managing pests
- It might have larvicidal activity and might help in eliminating larval pests
- It may have nematocidal activity and may assist to kill nematodes (worms that live in soil)
- It might have anti-microbial activity and might help combat infection. 
Potential health advantages of neem
Although clinical research into neem remains in its starting phases, it reveals guarantee for numerous elements of health, including blood sugar level management, as well as benefits for your hair, skin, teeth, liver, and kidneys.
Bear in mind that further human studies are required.
May promote hair health
Neem seed extract consists of azadirachtin, an active compound that may fight parasites that affect hair and skin, such as lice. Azadirachtin works by disrupting parasite growth and disrupting reproduction and other cellular processes.
In a study that tested the efficacy of a neem-based shampoo on head lice in kids, leaving hair shampoo in the hair for 10 minutes killed the lice while being gentle on the skin.
Neem extract and nimbidin, a substance found in neem oil, may likewise treat dandruff due to its anti-inflammatory and antimicrobial properties. Dandruff and scalp irritation may result from fungal accumulation on the scalp.
Might boost oral and oral health
Chewing neem bark to promote oral health is a typical practice in India.
Neem’s antiseptic, anti-inflammatory, antioxidant, and immune-boosting residential or commercial properties might promote oral health. Although more research study is required, studies show that neem might alleviate discomfort and aid treat gingivitis, periodontitis, and tooth decay.
Additionally, test-tube research studies recommend that neem might decrease germs’s capability to colonize the surface area of your teeth, therefore reducing plaque formation.
Plus, in a 21-day research study including 45 individuals with gingivitis, neem mouthwash was found to be as efficient as chlorhexidine mouthwash– a heavy duty prescription mouthwash– at decreasing gum bleeding and plaque.
Might help liver and kidney health
Neem’s antioxidant and anti-inflammatory residential or commercial properties might assist fight oxidative stress, which may in turn promote liver and kidney health.
Oxidative tension is triggered by an accumulation of unstable particles called complimentary radicals. Although your body naturally produces free radicals as a by-product of metabolic process, external sources increase their presence.
Some drugs, consisting of cancer medication, pain relievers, and antipsychotics, might add to oxidative tension, resulting in tissue damage in your liver and kidneys.
Surprisingly, one research study on rats found that neem leaf extract reduced liver damage caused by high-dose acetaminophen.
Another rat research study showed similar impacts, recommending that neem extract enhanced kidney tissue damage caused by chemotherapy medication.
However, research studies in humans are needed.
May improve skin health
Neem seed oil is rich in fatty acids, including oleic, stearic, palmitic, and linoleic acids. Jointly, these fatty acids have been shown to have anti-inflammatory, antioxidant, and antimicrobial properties that promote healthy skin.
Bear in mind that while Ayurvedic medicine– an Indian conventional healing system– uses neem to deal with psoriasis and eczema, extremely few clinical studies support these claims.
Historically, neem has actually been used to deal with acne, lower blemishes, and enhance skin flexibility.
Undoubtedly, studies recommend that neem oil’s anti-bacterial residential or commercial properties fight acne.
A test-tube research study showed that neem oil may aid long-lasting acne treatment when contributed to solid lipid nanoparticles (SLNs), a new kind of drug formulation that provides a steady release of active components.
All the same, research study in people is necessary.
Ulcer and injury healing
Animal studies recommend that neem leaf extract speeds up wound recovery through an increased inflammatory action and the development of new members vessels.
In a 2013, 34-day case study, applying 100 mg of neem oil topically two times everyday totally healed persistent skin ulcers.
In another study, 6 individuals with digestive tract ulcers took 30 mg of neem extract orally two times daily. After 10 days, acid secretion had actually decreased considerably, and after 10 weeks, the ulcers were nearly entirely healed.
Yet, this was a relatively little study. More human research is required.
Other possible advantages
Neem may have a number of other health benefits, though results are blended, and further studies in people are necessary.
Neem consists of active substances called limonoids. A research study in mice discovered that limonoids might be as reliable at targeting malaria-infected cells as conventional treatments utilizing chloroquine.
Nevertheless, some test-tube studies show no favorable impact of neem extract on malaria results.
Bear in mind that neem is not commonly utilized to treat malaria at this time.
Neem has actually likewise been considered as an option to a birth control due to its antifertility impacts. A vasectomy is a surgery that disinfects individuals with testicles by stopping the release of sperm.
Animal studies note that neem may debilitate and eliminate sperm with no long-lasting effects.
Some animal studies show that neem leaf extract may be a candidate for brand-new diabetes medications.
That’s because neem extract may help revive cells that produce insulin– the hormonal agent that helps control blood glucose– and lower blood sugar level levels.
All the same, human research studies are lacking.
Although neem appears to have numerous therapeutic results, outcomes are undetermined given that they’re based on test-tube and animal research study with extremely few human studies. 
Most parts of the neem tree are awfully bitter, with the exception of its flowers. White and fragile, neem flowers with their off-white buds are almost too pretty to be eaten and unbelievably restorative. The flowers have a sweet, almost mystical jasmine like scent during the night and bloom once in the afternoon and after that again in the evening. During the monsoon, you’ll see a bunch of them spread right under the tree. Also known as Vepampoo in Tamil, these neem flowers can be utilized fresh, dried or in a powdered form. They’re used frequently in the South to cook a number of dishes: flower rice, pachadi, rasam, lentils and more. They’re typically dry roasted and sprinkled on top of the meal to garnish as well.Neem flowers can be used to deal with anorexia, queasiness, belching and intestinal tract worms. Ayurveda recommends neem leaves benefit the eyes and useful in treating skin disease and headaches. They’re utilized in aromatherapy because of their soothing impact. A 2008 study also found the alcoholic extract of the neem flowers to be a reliable contraceptive.
Advantages of neem leaves: Neem flowers can be utilized to treat anorexia, nausea, belching and digestive worms.
Neem Twigs and Bark
If you were born in India, you would have seen people chew away at a neem branch. For many years now, a neem branch is what people used as a make-do toothbrush. It battles germs, keeps the alkaline levels in your saliva, keeps bacteria at bay, treats swollen gums and also gives you whiter teeth. The branch likewise shreds into threads, practically like bristles that also ruin and prevent plaque.Neem OilNeem oil that’s extracted from neem seeds is abundant in medicinal residential or commercial properties which are what makes it a terrific active ingredient in cosmetics and other beauty products: soaps, hair oil, hand wash, soap etc. It can treat a lot of skin diseases and is known to be an outstanding mosquito repellent. You can mix it with coconut oil and apply it over your body also. It is thought that in India, little kids are fed neem oil as a type of cure-all. Besides being such a great Ayurvedic therapist, neem oil can be used to secure other plants. It can also be used in creams, soaps and other cosmetic items. Here are some excellent uses of neem oil you might have missed:.
- Say no to blackheads: Take 2-3 drops of neem oil, dilute it with water and use this mix on your blackheads. Apply this regularly to eliminate blackheads and avoid them from returning.
- Anti-ageing: Neem oil is extremely nourishing and can be added to your face packs. It likewise assists ageing skin, any kind of skin irritation and itching.
- For excellent hair: Take some neem oil and rub it into the scalp, leave it in for a while and wash. Neem oil can reinforce your hair, avoid hair fall and deal with dandruff. 
People most regularly use neem in hair and skin care products. Some people take neem extract capsules, but there is not presently sufficient research study to state whether they have any medical benefits.
The oil is yellow or brown and smells of garlic or sulfur. If consumed, it has a strong bitter taste.
Little research is readily available on neem’s result on hair health, however anecdotal proof suggests that it might be practical for:.
Dandruff: Neem is a popular active ingredient in numerous anti-dandruff shampoos. Although there has been no research study to support its usage, neem is an anti-inflammatory and an anti-microbial, which may help reduce the symptoms associated with dandruff.
Lice: The outcomes of a small study showed that neem is a reliable anti-lice and anti-nit representative. The research study just checked 12 children with lice, however all were completely lice- and nit-free after treatment with a neem-based hair shampoo. No lice were present for 7– 10 days after treatment, and there were no adverse effects.
Oral products, consisting of mouthwashes, toothpastes, and tooth powders, can likewise contain neem. Neem can decrease pain from tooth pain and improve dental health by cleaning up the teeth and gums and reducing gingivitis. 
Prospective uses of Neem for Cancer:
Flavonoids and other chemicals found in neem may play a role against the worsening of cancer. Several research studies recommend that high flavonoids may help stop the development of cancer. Neem and its extracts have a potential action against a vast array of cancer cells in people that consist of cancers of the skin, breast, lung, oral, stomach, liver, colon, and prostate. Nevertheless, far more comprehensive research is required to show its potential use. Furthermore, cancer is a severe condition and you need to consult a certified physician for its medical diagnosis and treatment.
Prospective uses of Neem for Infections:
Viral infections: Neem might aid with dengue fever by perhaps stopping the growth of the dengue infection. It may hinder the replication of the coxsackie B infection, a group of infections that triggers conditions varying from indigestion to full-fledged infections in human beings. Neem leaf has actually typically been utilized for viral illness such as chickenpox and smallpox too. However, more studies are required to prove such claims.
Bacterial infections and Skin infections: Current studies have actually focused on anti-bacterial activities of neem in the mouth, particularly in gum illness and tooth cavities.
Neem is likewise thought to be very reliable in handling scabies, but sufficient clinical data does not exist for human research studies.
Because neem might have prospective antimicrobial residential or commercial properties, it may be helpful for various skin problems and diseases such as acne, eczema, and other skin conditions. Neem oil may likewise aid with psoriasis signs. However, more research is needed to back up such claims.
Fungal infections: Studies have actually shown that neem might have antifungal characteristics, which may aid with fungal infections like athlete’s foot, ringworm and candida fungus, commonly called as a yeast infection or thrush-causing organism. Thrush is a fungal infection that can occur in the mouth, throat or other parts of the body. However, more research study is required. 
Neem capsules have blood-purifying residential or commercial properties that have assisted many individuals to get healthier and radiant skin. In this situation, many people experience diseases triggered by their weak body immune systems. However neem capsules have actually assisted these patients get a strong immune system by taking these neem capsules under a medical professional’s guidance. Neem capsules act as blood cleansers in our bodies. And likewise improves the metabolic process in our body. 
What Are the Side Effects of Neem?
Consuming a supplement like neem may have potential negative effects. These negative effects may prevail or serious. Due to lack of research study, little is understood about the safety of short-term or long-term use of neem; nevertheless, there are some possible issues and side effects.
Topical usage (placed on skin) can trigger:
Allergic dermatitis (skin inflammation).
Dermatitis on the scalp (utilized by a specific with loss of hair).
Neem oil must not be taken in orally.
- Oral consumption can result in:
- Encephalopathy (scattered disease of the brain that impacts its function or structure)
- Seizures and coma 
May Cause Kidney Damage
A study reports of a case of acute kidney failure in a specific after taking a Chinese natural medication. The medication, according to the report, contained neem as one of the primary ingredients (1 ). Though no direct link had actually been established in between neem consumption and kidney damage, it is necessary to be careful. The trend of poisonous kidney injuries with respect to natural medications is likely to continue (1 ). For this reason, exercise care.
Some believe that excess intake of neem might likewise harm the liver. There is no research study to support this. However to be on the safe side, if you have liver problems, please consult your medical professional prior to consuming neem.
May Lower Blood Sugar Level Way Excessive
In a study, a mix of neem and durability spinach (a kind of spinach discovered in China) was found to have hypoglycemic homes.
Though the hypoglycemic impacts of neem seem desirable, if you are on medications for decreasing blood glucose, please contact your medical professional before consuming neem.
Physicians recommend percentages of neem oil for people with diabetes as it controls blood sugar level levels. But, when taken in excess, the drop may end up being extreme. Hypoglycemia may trigger dizziness and weakness (tiredness).
May Lead To Decreased Fertility
In rat research studies, the administration of neem flower extracts blocked ovulation partly. Though neem could be used as an antifertility representative when needed, it may likewise reduce fertility even when not desired.
In research studies done on rats, mice, bunnies, and guinea pigs, neem was discovered to lower male fertility. In male rats, this reduction was as much as 67% in simply 6 weeks. Nevertheless, neem didn’t appear to stop sperm production.
Some professionals theorize that farmers use neem pesticides to trigger infertility in the bugs so that they do not multiply, resulting the exact same in individuals who expose themselves to these pesticides. These pesticides are known to interfere with the instructions of the sperms and take a toll on the immune system. Nevertheless, research is lacking in this aspect.
May Cause Miscarriage
In animal research studies, neem extracts were discovered to cause pregnancy. The extracts could terminate a pregnancy without any visible negative effects in both rodents and monkeys. Though this could be desirable for someone looking to terminate the kid, for those who are expecting to develop, neem consumption might not be recommended.
Some theories mention that too much exposure to neem may cause the body immune system to end up being hyper. This might lead the body to turn down the sperm cells and eject them from the conceived embryo. Nevertheless, there is insufficient information to corroborate this.
May Cause Allergies
A research study goes over a case of allergic contact stomatitis (swelling of the mouth) after the intake of neem leaves once each week for 3 consecutive weeks.
Though neem is most commonly utilized for dealing with allergic reactions and rashes, its extreme usage might cause allergies. We need more research to even more understand the other allergies making use of neem may trigger.
May Result In Infant Deaths
Research studies have actually revealed that neem could be hazardous to babies. Doses of neem oil (as little as 5 ml) had led to infant deaths.
Animal research studies likewise revealed the toxicity of neem oil at dosages as low as 12 to 24 ml per kg of body weight.
Though the pollutants in neem oil could be responsible for these impacts (and not neem itself), more research is required. Neem leaves or their extracts should not be consumed for longer periods. Anecdotal reports state kidney failure in patients who took in neem leaf teas as a treatment for malaria.
The compounds in neem are known to trigger signs of Reye’s syndrome in babies when exposed to neem oil. The consumption of the tiniest dosage can be fatal for babies.
Inadequate Evidence For The Following:
There is less information and research study about the following adverse effects. These have only been verified by anecdotal proof. However, if you experience any of these negative effects after ingesting neem, please stop use and consult your doctor.
May Cause Stomach Irritation
Excess inhalation or consumption of neem may trigger indigestion or stomach irritation. More research study is required to comprehend how this takes place.
May Overstimulate Your Body Immune System
Intake of neem or neem-based products can improve the body immune system. However, heavy dosages of neem (specifically in clients with ailments) might overstimulate the immune system and trigger complications.
Patients who have gone through organ transplants might likewise require to keep away from neem. The leaves are thought to engage with immunosuppressant medications during surgical treatments.
However, there is insufficient information in this regard.
The advantages of neem are comprehensive and wonderful. When taken in the needed quantities, it can promote your overall health. However, if you exceed the advised dosage, it may cause kidney damage, considerably lower blood sugar levels, cause lowered fertility, trigger allergic reactions, cause miscarriage, overstimulate the immune system, and cause stomach inflammation. It can also be toxic to infants. Thus, caution is highly encouraged when consuming it. However, consisting of 2 to 3 neem leaves or 4 ml of neem juice in your regular helps gain its advantages. 
When taken by mouth: Neem bark extract is potentially safe for a lot of adults when used short-term. Dosages of approximately 60 mg daily for approximately 10 weeks have been used securely. Neem is potentially risky when taken by mouth in large dosages or for extended periods of time. It might hurt the kidneys and liver.
When applied to the skin: Neem oil or cream is possibly safe when applied to the skin for as much as 2 weeks.
When used inside the mouth: Neem leaf extract gel is potentially safe when applied inside the mouth for up to 6 weeks. Pregnancy: Neem oil and neem bark are most likely risky when taken by mouth during pregnancy. They can trigger a miscarriage.
Breast-feeding: There isn’t adequate dependable info to know if neem is safe to use when breast-feeding. Stay on the safe side and prevent usage.
Kids: Neem extract hair shampoo is possibly safe in kids when applied one or two times to the head for 10 minutes, then rinsed with warm water. Taking neem seeds and seed oil by mouth is likely hazardous in children. Major negative effects in infants and children can take place within hours after taking neem oil. These major adverse effects consist of throwing up, diarrhea, sleepiness, seizures, loss of consciousness, coma, and death.
” Auto-immune diseases” such as multiple sclerosis (MS), lupus (systemic lupus erythematosus, SLE), rheumatoid arthritis (RA), or other conditions: Neem might cause the immune system to become more active. This might increase the symptoms of auto-immune illness. If you have among these conditions, it’s best to avoid using neem.
Lowered ability to have children (infertility): There is some proof that neem can harm sperm. It may also reduce fertility in other ways. If you are trying to have kids, avoid using neem.
Organ transplant: There is a concern that neem might decrease the impact of medications that are utilized to prevent organ rejection. Do not utilize neem if you have had an organ transplant.
Surgical treatment: Neem may reduce blood glucose levels. There is a concern that it might disrupt blood glucose control throughout and after surgical treatment. Stop using neem a minimum of 2 weeks prior to an arranged surgical treatment. 
Neem is an unique plant in that all its parts– its leaves, flowers, seeds, fruit, root, and bark– show medical residential or commercial properties.
Although clinical research study on this supplement is still in its early stages, evidence suggests that it may treat dandruff, lice, gingivitis, and dental plaque, as well as promote wound recovery.
However, dose info is presently unknown, and a lack of policy implies that lots of neem items aren’t evaluated for security and purity. Therefore, it’s best to talk with a health care expert prior to trying any neem item.