Aloe is really two ingredients. The mild inner gel, taken by mouth, shows modest signals for lowering blood sugar and cholesterol, and applied to skin it speeds healing of burns and minor wounds. The bitter outer juice is a strong laxative but carries the clearest hazards. Which part is used matters most. (Full Review)

Protocol

Form

Purified inner gel

Decolorized, latex-free for oral use

Dose

100–300 mg/day gel complex

Or ~15 mL purified gel twice daily before meals

Timing

Before meals, split twice daily

Any latex laxative taken at bedtime

Time to effect

Laxative effect

6–12 hours

After an effective latex dose

Glucose & lipids

4–8 weeks

Oral inner gel

Burn & wound healing

Days to a few weeks

Topical gel

Benefits

High: Relief of occasional constipation

Medium: Improved blood sugar control, improved blood lipids, burn and minor wound healing, oral and periodontal health

Low: Relief of irritable bowel syndrome symptoms, systemic antioxidant and anti-inflammatory effects

Speculative: Immune modulation and healthspan, metabolic and weight support

Contraindications

Pregnancy and breastfeeding (oral latex/whole-leaf)

Children under 12

Inflammatory bowel disease (Crohn's, ulcerative colitis)

Bowel obstruction

Undiagnosed abdominal pain

Kidney disease (eGFR below 30)

Allergy to Liliaceae-family plants

Stop 2 weeks before surgery

Key Interactions

Glucose-lowering drugs (insulin, sulfonylureas)

Digoxin

Diuretics (thiazides, loop agents)

Warfarin (and sevoflurane during surgery)

Other stimulant laxatives (senna, bisacodyl)

Any oral medication (separate by 2 hours)

Glucose-lowering supplements (berberine, cinnamon, bitter melon, chromium)

Licorice

Other herbal laxatives (cascara, rhubarb)

Risk & Side Effects

High: Gastrointestinal cramping and diarrhea, electrolyte depletion and potassium loss

Medium: Colorectal tumor signal from non-decolorized whole-leaf extract, additive blood-sugar lowering and drug interactions

Low: Idiosyncratic liver injury, allergic contact dermatitis, kidney impairment with chronic high-dose latex

Speculative: Unknown long-term effects of chronic oral gel use

Monitoring

Marker	Target	Why
Fasting blood glucose (FBG)	75–86 mg/dL	Tracks the main metabolic benefit
Glycated hemoglobin (HbA1c)	< 5.4%	Average blood sugar over ~3 months
Lipid panel (LDL, HDL, triglycerides)	LDL < 100 mg/dL; HDL > 55 mg/dL; triglycerides < 90 mg/dL	Tracks lipid benefit
Potassium	4.0–4.5 mmol/L	Detects latex-related depletion
Kidney function (eGFR, creatinine)	eGFR > 90 mL/min/1.73 m²	Flags vulnerability to electrolyte/renal effects
Liver enzymes (ALT, AST)	ALT < 25 U/L; AST < 25 U/L	Screens for rare liver injury

Cadence: Glucose markers and lipids at 8–12 weeks, then every 3–6 months; potassium and kidney function every 3–6 months with chronic latex, diuretics, or digoxin; liver enzymes if symptoms appear.

Qualitative Assessment

Bowel regularity: More comfortable, regular bowel movements without cramping or dependence.
Digestive comfort: Reduced bloating, urgency, or IBS-type discomfort.
Energy and well-being: Stable daytime energy without dehydration or lightheadedness.
Skin and wound response: Faster, less painful healing of minor burns or wounds where gel is applied.

Aloe vera for Health & Longevity

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment