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Compound · Catechin

EGCG

Epigallocatechin Gallate (EGCG) is a catechin. Green tea catechin with antioxidant properties.

Epigallocatechin Gallate · updated 24 Oct 2026

EGCG (epigallocatechin gallate) is a catechin, the most abundant of the polyphenol catechins in green tea, and the Celyfe compound library files it as a green tea catechin with antioxidant properties. It is not carried in any Celyfe pen.

What is EGCG?

Catechins are a subgroup of flavonoid polyphenols, and EGCG is the gallate ester of epigallocatechin, the most abundant catechin in green tea leaves. The Celyfe library classes it as a catechin with an oral delivery route and the mechanism note: green tea catechin with antioxidant properties. It is not a peptide and not a regulated compound.

Is EGCG in a Celyfe pen?

No. The polyphenol that does travel in a Celyfe pen is trans-resveratrol, at 25mcg in the vehicle of the NAD+ Precision Pen. EGCG is not in any of the four pens, Celyfe does not currently sell it as a product, and Celyfe lists no EGCG reference, so this page makes no statement about research findings.

Key takeaways

  • •Epigallocatechin Gallate (EGCG) is a catechin.
  • •Library note: Green tea catechin with antioxidant properties.
  • •Library entry: not currently carried in a Celyfe pen.

At a glance

Class
Catechin
Full name
Epigallocatechin Gallate

Role in the library

Green tea catechin with antioxidant properties.

Compared with

Frequently asked questions

Sources

  1. NAD+ Precision Pen (product page)
  2. Compare: EGCG vs Quercetin
  3. Compare: NAD+ vs Resveratrol
  4. Guide: How to store research peptides
EGCG: The Most Abundant Green Tea Catechin | Celyfe