Free to read · nothing for sale · no ads, no sponsors · funded by donation

Open Source Apothecary At Home

Open Source Apothecary At Home / The herbs

Aloe vera

Two different medicines in one plant, and only one of them should go on your skin. — Aloe vera

remedy
Aloe vera Aloe vera — hand-drawn plate, stylised. Not for identification — use a field guide and verify with a second source before eating any wild plant.

Aloe vera contains two distinct preparations and confusing them is the main mistake.

The inner gel — the clear mucilage in the centre of the leaf — is a soothing topical for minor burns, sunburn and irritated skin. It has randomised trial evidence in burn healing and in radiation-induced skin reactions, and it is one of the better-evidenced topical plant preparations in this handbook. It is also a laxative if eaten in quantity.

The latex or "aloin" layer — the yellow sap just under the rind — is a stimulant laxative (aloin, an anthraquinone) and is the reason whole-leaf aloe juice causes cramping and diarrhoea. Oral aloe latex is a genuine purgative and is not a casual supplement, and long-term anthraquinone laxative use is associated with dependence and electrolyte problems. In 2002 the US removed aloe laxative ingredients from the market over insufficient safety data.

So: gel on the skin, gel in a drink sparingly, latex not at all as a casual remedy.

Growing it is easy and it is the right plant for a windowsill — bright light, gritty free-draining soil, water sparingly. Overwatering kills more aloe than cold does.

What the studies found

Meta-Analysis2024Journal of burn care & research : official publication of the American Burn Association

Effects of Aloe vera on Burn Injuries: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Burn injuries cause severe pain, infection risks, psychological distress, financial burdens, and mortality, necessitating effective care.
PubMed 38605441 ↗
Meta-Analysis2023International journal of molecular sciences

Abiotic Stress in Crop Production.

Finally, this review provides information about the response to abiotic stress in major European crop plants-wheat, sugar beet, maize, potatoes, barley, sunflowers, grapes, rapeseed, tomatoes, and apples.
PubMed 37047573 ↗
Meta-Analysis2022Advances in skin & wound care

Second-Degree Burns and Aloe Vera: A Meta-analysis and Systematic Review.

Topical aloe vera usage for second-degree burn wound healing demonstrated significantly faster time to healing compared with other treatments.
PubMed 36264753 ↗
Meta-Analysis2021Journal of advanced nursing

Effects of Aloe vera in adults with mucocutaneous problems: A systematic review and meta-analysis.

AV might have beneficial effects in reducing pain scores and the severity of mucocutaneous problems compared with placebo, especially with limited mild to moderate adverse effects.
PubMed 33336470 ↗
Meta-Analysis2017The Cochrane database of systematic reviews

Antiseptics for burns.

It was often uncertain whether antiseptics were associated with any difference in healing, infections, or other outcomes.
PubMed 28700086 ↗

Growing it

| | | |---|---| | Life | Succulent perennial | | Propagation | Offsets ("pups") — the easy route | | Light | Bright light; a south windowsill is ideal | | Soil | Gritty, free draining — cactus mix | | Water | Sparingly. Let it dry out between waterings | | Hardiness | Not winter hardy here — bring it in | | Harvest | Cut outer leaves at the base; use the gel fresh |

Overwatering is the main killer. Keep it above about 5 C, in a pot with drainage, and ignore it more than you think.

Preparation

Topical gel — cut an outer leaf, stand it cut-end down for 10 minutes to drain the yellow latex, then split and apply the clear gel directly.

Draining the latex first matters — it is the irritant and laxative part.

After sunburn or a minor burn — apply fresh gel, repeatedly. The trial evidence is for topical burn use.

Preserving gel — blend with a little vitamin C or vitamin E and refrigerate; use within a week.

Juice — use inner-gel juice, not whole-leaf. Check the label; whole-leaf products contain aloin.

Do not use oral aloe latex as a laxative.

Cautions and interactions

When this is not a self-care problem — get help

Related

Sources

  1. Effects of Aloe vera on Burn Injuries: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Journal of burn care & research : official publication of the American Burn Association 2024; doi:10.1093/jbcr/irae061 PubMed 38605441
  2. Abiotic Stress in Crop Production. International journal of molecular sciences 2023; doi:10.3389/fpls.2022.887103 PubMed 37047573
  3. Second-Degree Burns and Aloe Vera: A Meta-analysis and Systematic Review. Advances in skin & wound care 2022; doi:10.1097/01.ASW.0000875056.29059.78 PubMed 36264753
  4. Effects of Aloe vera in adults with mucocutaneous problems: A systematic review and meta-analysis. Journal of advanced nursing 2021; doi:10.1111/jan.14653 PubMed 33336470
  5. Antiseptics for burns. The Cochrane database of systematic reviews 2017; doi:10.1002/14651858.CD002106.pub4 PubMed 28700086