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ingestible · for spider veins

Grape Seed Extract

Reviewed by the Nimbera editorial team · Last updated May 2026

Limited evidence$10-25

How to use

Standardized extract, typically 100-300mg daily.

How it works

Antioxidants (proanthocyanidins) may strengthen blood vessels and improve circulation. Evidence is limited and mostly anecdotal.

Where to buy

Supplement stores.

Typical cost: $10-25

Safety notes

May interact with blood thinners. Honestly: limited evidence - set expectations accordingly.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

VeinDirectory clinical Q&A

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.