Aloe Vera - A Mini Review | Open Access Journals

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Aloe Vera - A Mini Review

Gayathri P*

MNR College of Pharmacy, Sangareddy, Medak District, Telangana, India

*Corresponding Author:
Gayathri P
MNR College of Pharmacy, Sangareddy, Medak District, Telangana, India
Tel: +919701764943

Received date: 28/08/2016; Accepted date: 02/09/2016; Published date: 30/09/2016

Visit for more related articles at Research & Reviews: Journal of Chemistry


Aloe Vera is a characteristic item that is currently a day much of the time utilized as a part of the field of cosmetology. In spite of the fact that there are different signs for its utilization, controlled trials are expected to decide its genuine adequacy. The aloe Vera plant, its properties, instrument of activity and clinical uses are quickly explored in this article.


Aloe Vera, herbal medicine, skin


Aloe vera (syn. Aloe barbadensis Mill., Fam. Liliaceae), otherwise called Barbados or Curaçao Aloe, has been utilized as a part of customary and society solutions for a great many years to treat and cure an assortment of maladies. Inspite of the fact that the plant is local to northern parts of Africa, it has quickly spread over the world since its development is simple. An imperative qualification must be made between the firmly diuretic and laxative latex got from the pack sheath cells and the reasonable adhesive gel. The plant has been utilized by Egyptians, Assyrians, and Mediterranean human advancements, and additionally in Biblical times. An assortment of aloe animal types are still utilized as a part of people prescriptions of Africa and Asia. Seekers in the Congo apparently rub their bodies free adhesive gel to diminish sweat; some African tribes apply the gel for constant conjunctivitis; the gel is utilized as a part of India for the treatment of asthma. [1-10]


Aloe vera is a succulent plant with thick, plump, serrated, lanceolate-formed leaves of green-greyish shading. Aloe Vera inward gel is gotten from the lower leaves of the plant by cutting the leaf open. The gel is clear, unscented, and bland and ought to be free of leaf skin or yellow parts. No reliable institutionalization has been built up, yet the International Aloe Science Council (IASC), an exchange relationship of globally based aloe makers and advertisers, obliges adherence to specific for the item to be certified.10 Other arrangements incorporate a hydrophilic cream containing 0.5% aloe vera gel and an emulsion comprising of 30% aloe Vera gel (Figure 1).


Figure 1: Aloe vera leaf.


Figure 2: Aloe vera plant.

Chemical Composition

The aloe gel predominantly comprises of water (99.1%) and mesophyll cells (0.9% dry matter), which can be isolated into 3 particular portions: cell divider, micro particles, and fluid gel [accounting for 16.2%, 0.7%, and 83.1% of dry mash (w/w), respectively]. The transcendent sugar part is mannose as mannose-6-phosphate36 in each of the 3 divisions [20.4% in cell divider, 32.2% in micro particles, and 62.9% in the fluid gel (% of aggregate sugars)], trailed by different sugars in changing focuses relying upon the portion. By and large, the 5 impartial sugars (i. e, arabinose, xylose, mannose, galactose, glucose) represent 69.2% of the aggregate sugars in the gel.37 Muco polysaccharides are mostly present as acemannan [a exceedingly acetylated, β-1-4-connected polysaccharide (> 1kDa) made for the most part of mannose] with different side chain glycosylation patterns.38 The anthra quinone substance ought to be beneath 50 ppm and is viewed as a debasement from the leaf concentrate of aloe vera.7 Other fixings incorporate different amino acids, proteins, and vitamins, which have not been evaluated. The IASC keeps up a confirmation program, in which "entire aloe vera leaf gel" needs to stick to the accompanying details: solids (0.46%–1.31%); pH (3.5–4.7); calcium(98.2–448 mg/L); magnesium (23.4–118 mg/L; malic corrosive (817.8–3,427.8 mg/L); acemannan in crude materials (≥ 5% by dry weight); isocitrate ( ≤ 5% for inward leaf by dry weight); crude materials powder content (≤ 40%); aloin (≤ 10 ppm in 0.5% aloe vera solids answer for oral utilization). Quality items ought to contain high sums (95%) of unadulterated aloe vera gel.39 One method for evaluating aloe polysaccharides is a colorimetric test, which has been proposed for use in quality control of business products.40 Quality control and recognizable proof of business aloe vera items has additionally been proficient by atomic attractive reverberation spectrometry. [11-20]

Mechanism of action

Incitement of macrophage and fibroblast movement, expanded collagen and proteoglycan synthesis.Mannose-6-phosphate ties to development element receptor on fibroblasts and improves their activityMacrophage actuation through expanded nitric oxide synthase action by acemannan, prompting arrival of fibrogenic cytokines. Upregulation of phagocytosis and fungicidal movement of macrophages by acemannan95 Acemannan and other cell divider biomaterial may advance steadiness of development components and drag out incitement of granulation tissue48,80 Restraint of Thromboxan A2. May advance hypoglycemic impact by normalizing film bound protein exercises of phosphatases and hydrolases and expanded glucose metabolism; potential dynamic mixes incorporate the phytosterols lophenol, cycloartenol and their alkylated derivatives Mitigating impact of plant sterols like lupeol, campesterol, and β-sitosterol through bradikinase activation, prostaglandin F2 and E2, and in addition thromboxane A2 inhibitionand hindrance of IL-10 secretion Inhibitory impact on arrival of receptive oxygen species from human neutrophils by decreasing intracellular free calcium levels Increment in mRNA articulation of metalloproteinases and plasminogen activator may prompt angiogenic action in endothelial cells91[21-30]

Clinical Uses

Seborrheic dermatitis, psoriasis vulgaris, genital herpes, skin burns, diabetes (type 2), HIV infection, cancer prevention, ulcerative colitis, wound healing (results of aloe on wound healing are mixed with some studies reporting positive results and others showing no benefit or potential worsening), pressure ulcers, mucositis, radiation dermatitis, acne vulgaris lichen planus, frostbite, aphthous stomatitis, and constipation.

Pregnancy and breastfeeding: Oral aloe is not recommended during pregnancy due to theoretical stimulation of uterine contractions, and in breastfeeding mothers, it may sometime cause gastrointestinal distress in the nursing infant. [31-40]

Used for treating animal diseases

Speeding up of twisted recuperating in mice and rats; lessening of radiation-affected skin responses in illuminated mice and rats; counteractive action of dynamic dermal ischaemia brought about by blazes and frostbite in rats and guinea pigs; antidiabetic in sort 2 diabetic and insulin-safe mice; chemo preventive in skin papillo magenesis in mice; calming in mice; improvement of safe responsiveness in chicks and mice; enhancement of UV-impelled resistant concealment in mice; advancement of gastric ulcer mending in rats; assurance of liquor dehydrogenase and decrease of blood ethanol fixations in rats; diminishment of salmonella-intervened irritation in mice; cancer prevention agent and cholesterol-bringing down impacts in matured rats [41-60].

Adverse effects

Topical utilization of aloe vera arrangements has been viewed as sheltered as surveyed by the Cosmetic Ingredient Review Expert Panel. However, a few case reports of the improvement of extreme touchiness responses and contact dermatitis in light of topically connected aloe gel arrangements have been published. This unfavourably susceptible response has been ascribed much of the time to anthraquinone defilements in the gel. Macrophage penetration and emesis has been seen in canines treated intravenously with acemannan. Oral use of aloe vera gel may bring down blood glucose levels and upgrade the movement of antidiabetic treatments. No genotoxic impacts have been watched taking after oral organization of an aloe vera inward leaf gel (Qmatrix® by Aloecorp, Inc., which is an institutionalized internal gel extricate that has not been warmed after extraction from the leaf) to rats after 90 days. An essential element for antagonistic impacts is the virtue of the aloe vera gel utilized, since anthraquinones like aloin may be identified with the advancement of excessive touchiness reactions. [61-80].

Cosmetic uses of aloe Vera

• Prevents Signs of Aging

• Moisturizes Skin

• Reduces Acne and Helps Lighten Blemishes

• Helps with Sunburns And Reduces Tan

• Heals External Wounds and Insect Bites

• Reduces Stretch Marks

• Promotes Hair Growth

• Reduces Dandruff

• Maintains pH Balance of the Scalp

• Conditions Hair

• Reduces Inflammation

• Eases Heartburn and Acid Reflux

• Reduces Cholesterol and Regulates Blood Sugar

• Maintains Oral Health

• Builds Immunity

• Lowers Risk of Cancer

• Helps in Treating Haemorrhoid


Taking everything into account, the utilization of aloe Vera gel or its segments for the treatment of an assortment of conditions and infections needs promote clinical confirmation through very much composed studies with characterized aloe extricates and coordinating fake treatment controls. Presently (June 2012), 5 national and universal clinical studies are recorded by the United States National Institutes of Health clinical trial database with a noteworthy accentuation on the utilization of aloe Vera in the treatment of wounds.122 This shows the logical hugeness of aloe Vera gel and the need to build up it as a substantial treatment choice for wounds. Be that as it may, the utilization of aloe Vera gel in topical applications has broadly been affirmed in the clinical studies as protected.