Before we get into all the details, let’s chat about a plant many of us have seen but might not fully understand: Aloe Vera. This succulent has been valued for thousands of years in traditional practices for skin care and other uses.
Today, we’ll explore its benefits, how it works, and what to watch out for, so we can all use it safely and effectively.
What Is Aloe Vera?
Aloe vera is a perennial desert plant recognized for its thick, triangular leaves. The most common type, Aloe barbadensis Miller, contains around 75 potentially active compounds, including vitamins, enzymes, minerals, sugars, saponins, salicylic acid, and amino acids. These compounds are often cited as the basis for aloe’s biological activity.
The Two Key Parts of Aloe Leaves
The leaf has two main parts that are used medicinally: the gel inside and the latex layer between the gel and the skin.
- Gel: Mostly water, it also contains polysaccharides, amino acids, lipids, sterols, and vitamins. Topically, aloe gel may help soothe minor burns and sunburn, and limited research also suggests possible benefit for acne and some inflammatory skin conditions.
- Latex: This yellow, bitter fluid contains anthraquinones and glycosides. It has traditionally been used as a laxative for constipation, but ingested aloe latex can also cause significant side effects and is not considered low-risk.
Proven Benefits of Aloe Vera
1. Supports Digestive Health
Irritable bowel syndrome (IBS) causes abdominal pain and changes in bowel habits, affecting up to 11% of people worldwide. A meta-analysis of three clinical trials with 151 patients found that Aloe improved IBS symptoms compared to a placebo, especially over short-term use (about one month). While the results are promising, larger, long-term studies are needed to confirm safety and effectiveness.
2. Skin Conditions Like Psoriasis
Some small studies suggest topical aloe may help mild to moderate psoriasis, but results across studies are mixed. It is more accurate to say aloe shows potential rather than calling it an established treatment.
3. Wound Healing
Skin protects us from dehydration and external harm, but injuries like burns or chronic ulcers can risk infection. A Cochrane review of seven studies with 347 participants found mixed results using Aloe-based gels or dressings for acute and chronic wounds. While some patients benefit, more high-quality research is needed.
4. Blood Sugar Support
Some meta-analyses suggest ingested aloe vera may improve fasting blood glucose and HbA1c in prediabetes and type 2 diabetes, especially in early or untreated cases. However, study quality and product differences limit firm conclusions, so aloe should not replace standard diabetes care.
5. Acne Improvement
A randomized trial found that topical aloe vera gel used alongside tretinoin was better tolerated and more effective than tretinoin alone in mild to moderate acne. This makes aloe a reasonable adjunct rather than a stand-alone proven acne treatment.
Possible Side Effects
As NCCIH notes, “Topical use of aloe gel is generally well tolerated.”
Topical Aloe gel is generally safe for skin, but avoid using it on open wounds. Sensitive skin may experience redness, burning, rashes, or tingling. Consuming Aloe latex can cause abdominal cramps, diarrhea, dark-colored body fluids, liver or kidney issues, low potassium, muscle weakness, and weight loss.
Internal Use Precautions
We should avoid ingested aloe, especially aloe latex, in these situations:
- Pregnancy—may increase uterine contractions and risk of miscarriage or birth defects.
- Breastfeeding, children, or people with liver/kidney issues—safety not established.
- Allergies to Liliaceae plants like garlic, onions, tulips, or lilies.
- Two weeks before surgery—may increase bleeding risk.
- People on blood sugar-lowering medications—monitor closely.
- Digestive disorders like Crohn’s disease, ulcerative colitis, or intestinal blockages.
- Hemorrhoids—could worsen symptoms.
- Avoid mixing with certain medications, such as diuretics, cardiovascular drugs, laxatives, or anticoagulants, as Aloe may interfere with effectiveness or increase side effects.
Let’s Enjoy Aloe Safely
Aloe vera is more than just a decorative plant. It may offer useful topical benefits, and some early evidence suggests possible digestive, acne, and blood sugar benefits in selected situations. But the evidence is not equally strong for all uses, and ingested products—especially latex—carry meaningful risks. The safest approach is to treat aloe as a complementary option, not a cure-all, and to check with a healthcare professional before using it internally or alongside medications.
