Aloe vera (L.) Burm.f., syn. Aloe barbadensis Miller · herb
Evidence tier: moderate
Natural wound healing and anti inflammatory agent, soothes and repairs burns, skin irritation, constipation, and supports gut lining integrity
For the topical gel, the leading explanation is that acemannan, an acetylated polysaccharide, stimulates fibroblast activity and re epithelialisation, which is consistent with the observed shortening of healing time. This is a laboratory hypothesis, not a proven mechanism in people. For the oral latex, the mechanism is not in doubt and is not benign: anthraquinones, principally aloin, irritate the colonic mucosa and drive peristalsis. That is a stimulant laxative action, with the electrolyte loss and dependency profile that action implies, and the same anthraquinones are the compounds behind the carcinogenicity concern.
Aloe is TWO products with two different verdicts, and they must never be blended. TOPICAL GEL is the defensible one. NCCIH states that clinical research suggests topical application of aloe gel may speed burn healing and reduce burn related pain, and a 2024 systematic review and meta analysis in the Journal of Burn Care and Research (PMID 38605441, nine randomised trials, Cochrane risk of bias tool version 2, GRADE applied) found aloe cut mean wound healing time in second degree burns by 3.76 days versus other topicals (95 percent CI 5.69 to 1.84 days) with no increase in infection risk. Note what the same meta analysis did NOT find: no significant difference in pain reduction, and no difference in infection. So the honest topical claim is faster healing of second degree burns, not analgesia. ORAL ALOE is a different substance and a different conversation. Aloe LATEX, the bitter yellow exudate from the outer leaf, is a stimulant laxative that the US FDA REMOVED from over the counter laxative products in 2002 for lack of safety data, a fact NCCIH states directly. It is not a cleared product with a caution attached; it was taken off the shelf. Whole leaf, non decolorized aloe vera extract is classified by the International Agency for Research on Cancer as a GROUP 2B possible human carcinogen, and the NTP rodent bioassay it rests on found intestinal tumours. NIH LiverTox carries a real aloe vera chapter with a LIKELIHOOD SCORE B, a likely but rare cause of clinically apparent liver injury, and NCCIH notes that oral aloe leaf extract has been linked to acute hepatitis after as little as three weeks of use. Oral aloe for blood sugar rests on what NCCIH calls 'a small amount of research'. There is no world in which the burn gel evidence licenses the oral product.
Topical only can be stated with any confidence: aloe gel applied to the burn or wound site, as used in the trials, typically two to three times daily. No authority establishes a safe or effective ORAL dose. The FDA removed aloe latex from over the counter laxatives in 2002, so there is no sanctioned oral laxative dose to quote, and decolorized inner leaf products have no established dose either.
Internal (gut): take 50 to 200ml of food grade inner leaf gel daily on an empty stomach. Topical: apply clear gel directly to affected skin 2 to 3 times daily. Do not use latex (outer leaf) products internally, only inner leaf gel.
Onset: ~14 days
Topical gel is safe for all populations. Oral aloe latex is a powerful stimulant laxative, appropriate only for short term constipation relief (max 1 to 2 weeks). Chronic oral use linked to electrolyte loss and potential carcinogenicity. Topical gel safe in pregnancy; oral latex must be avoided.
Pregnancy: safe
Breastfeeding: safe
Used for millennia across ancient Egypt, India, and China for skin healing and digestive soothing. One of the most extensively documented medicinal plants in traditional medicine, with unbroken recorded use spanning over 6,000 years.
Active compounds: acemannan, aloin, aloe-emodin, anthraquinones, polysaccharides
Remedies using Aloe Vera · Browse by body system · Check it against what you take
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.