Will my varicose veins shrink?

No. The evidence covers symptoms such as swelling and heaviness, not the appearance or size of the veins.

How does it compare with horse chestnut?

Both target venous symptoms with modest evidence. Horse chestnut has larger trials; gotu kola has better objective capillary filtration data.

Can I take it long term?

Courses of about six weeks with breaks are the sensible pattern, given the liver injury case reports.

Condition

Moderate Evidence

Effectiveness 3/5

Gotu Kola for Varicose Veins

Titrated extract of Centella asiatica at 60-120 mg/day reduces ankle oedema, leg heaviness and capillary filtration rate in chronic venous insufficiency, improving symptoms without altering the veins themselves.

Overview

For chronic venous insufficiency, the condition underlying varicose veins, a systematic review of Centella asiatica found most trials reported improvements in oedema, ankle circumference and capillary filtration rate. It also found that methodological quality was generally poor.

Both halves of that sentence should carry equal weight. The direction of effect is consistent across studies and mechanistically plausible, but small samples, weak blinding and inconsistent outcome measures mean the effect size is unreliable. One clarification matters more than any dosing detail: gotu kola addresses symptoms of venous insufficiency, not the visible veins themselves. Nothing in this literature suggests varicose veins shrink or disappear. Heaviness, aching and swelling are the realistic targets.

Verdict

Likely effective

Systematic review of chronic venous insufficiency trials found consistent improvements in oedema and capillary filtration, tempered by poor study quality.

How It Works

Varicose veins arise when valves fail and venous pressure rises, stretching the vessel wall and pushing fluid into surrounding tissue. Gotu kola's triterpenes stimulate collagen and glycosaminoglycan synthesis in the vein and capillary wall connective tissue.

A better-supported vessel wall leaks less and distends less under pressure, which plausibly reduces the heaviness and swelling that dominate the symptom picture. Measured reductions in capillary filtration rate across trials support this reading. What the mechanism cannot do is restore failed valves or reverse an already dilated superficial vein. Structural correction requires a procedure; this is symptom management on top of it.

Active constituents: Asiaticoside, madecassoside, asiatic acid
Primary target: Collagen and glycosaminoglycan synthesis in vessel walls
Symptoms addressed: Heaviness, aching, swelling and capillary leakage
Not addressed: Vein appearance, valve failure or vessel diameter
Best-fit user: Symptomatic chronic venous insufficiency alongside compression

Dosing & Protocol

Trials in venous insufficiency used 60 to 180 mg daily of total triterpenic fraction, generally for four to eight weeks. As always with this herb, the standardised triterpene figure is the dose, not the weight of the capsule.

Context	Dose	Form	Timing
Common trial range	60-120 mg daily	Total triterpenic fraction	Split into 2-3 doses with food
Higher studied dose	180 mg daily	Total triterpenic fraction	Three divided doses
Standardised extract	Check stated triterpene content	Centella asiatica extract	With meals
Assessment window	4-8 weeks, then a break	Standardised extract	Daily

1
Have the diagnosis confirmed· Before starting
A venous duplex scan establishes whether valve incompetence is the cause and whether a procedure is warranted.
2
Score symptoms, not appearance· Week 0
Rate heaviness and aching at the end of the day. Vein appearance will not change.
3
Take 60-120 mg TTF daily with food· Weeks 1-6
Split doses across the day and buy on triterpene content.
4
Combine with compression and movement· Ongoing
Graduated compression and calf-muscle activity outperform any oral agent for venous symptoms.
5
Cycle off after about six weeks· Week 6
Given the liver case reports, a break before any further course is the prudent pattern.

It will not change how your veins look

The evidence covers oedema and symptom measures. Visible varicosities require sclerotherapy, ablation or surgery to change.

Evidence

The linked systematic review pooled Centella asiatica trials in chronic venous insufficiency across roughly 500 participants. Most reported improvements in oedema, ankle circumference and capillary filtration rate, while the review graded overall methodological quality as poor.

Systematic review linked to this pairing.

A systematic review of the efficacy of Centella asiatica for improvement of the signs and symptoms of chronic venous insufficiency

Score: 7/10

2013

systematic_review

n=500

Chong NJ, Aziz Z

Most included trials reported improvements in oedema, ankle circumference and capillary filtration rate with Centella asiatica, but the overall quality of evidence was poor.

View source

Best available evidence: Systematic review, roughly 500 participants
Typical effect: Improved oedema, ankle circumference and capillary filtration
Studied dose: 60-180 mg total triterpenic fraction daily
Time to effect: 4-8 weeks
Main limitation: Poor methodological quality across included trials

Safety

Standardised oral extracts are usually well tolerated for the six to eight week courses studied. Nausea, headache and drowsiness are the common complaints; the liver case reports are the reason long continuous use is discouraged.

Cautions

Case reports of hepatotoxicity with prolonged use

Take in courses of about six weeks with breaks

Avoid in pregnancy and breastfeeding

Drowsiness alongside sedatives or alcohol

Avoid if you have existing liver disease

Interactions & Conflicts

Interactions mirror the leg swelling picture: liver loading and sedation are the two that matter, with mild effects on glucose and cholesterol reported inconsistently.

Interacts with	Severity	Mechanism	Action
Hepatotoxic drugs and supplements	moderate	Additive liver risk given case-reported hepatotoxicity	Do not stack; stop immediately at any sign of jaundice
Sedatives and alcohol	moderate	Additive drowsiness	Avoid combining, especially before driving
Horse chestnut or diosmin	low	Overlapping venotonic effects	Use one at a time so you can attribute any benefit
Diabetes medication	low	Reported mild effects on blood glucose	Monitor readings when starting or stopping

References

Chong NJ, Aziz Z. A systematic review of the efficacy of Centella asiatica for improvement of the signs and symptoms of chronic venous insufficiency. Evid Based Complement Alternat Med. 2013

Frequently Asked Questions

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