Camellia sinensis leaf extract

Camellia sinensis leaf extract is a botanical ingredient derived from the leaves of the green tea plant. It is standardised for its polyphenol content, particularly epigallocatechin gallate (EGCG), which is the most abundant catechin. The extract is widely used in dietary supplements for its antioxidant properties and is one of the most familiar and commercially understood gummy actives across EU and US markets.

Brands use Camellia sinensis leaf extract in gummy formats to position products around energy and vitality, weight and metabolism, and daily wellness. Its low cost tier and good gummy applicability make it an accessible ingredient for private-label ranges. Because it is a botanical on the EFSA on-hold list, no authorised health claims exist under Reg. (EU) 432/2012, so claim coverage must come from co-formulated nutrients such as Vitamin C or Magnesium.

Origin and history

Camellia sinensis is the plant species from which all true teas — green, black, white, and oolong — are produced. Native to East Asia, it has been cultivated for thousands of years, with green tea consumption traditionally associated with health and longevity in Chinese and Japanese cultures. The leaves are harvested, steamed or pan-fired to prevent oxidation, then dried to produce green tea.

Industrial production of Camellia sinensis leaf extract involves solvent extraction (typically water or ethanol) of dried green tea leaves, followed by concentration and standardisation to a specified EGCG content. The extract is then spray-dried or freeze-dried into a powder suitable for encapsulation, tableting, or incorporation into gummy formulations. Decaffeinated versions are also available for brands targeting evening or sensitive-consumer segments.

Scientific overview

Camellia sinensis leaf extract contains a complex mixture of polyphenols, primarily catechins such as epigallocatechin gallate (EGCG), epicatechin gallate (ECG), and epigallocatechin (EGC). These compounds are potent antioxidants that scavenge free radicals and chelate transition metals. EGCG is the most studied catechin and is believed to be responsible for many of the extract's biological activities. The extract also contains caffeine (typically 2-4% by weight), theanine, and other methylxanthines.

Bioavailability of catechins is relatively low due to extensive first-pass metabolism and efflux transport. Co-administration with Vitamin C or piperine may enhance absorption, though this is formulation-dependent. The extract is heat-stable and soluble in gummy matrices, making it suitable for standard gummy manufacturing processes. Standardisation to EGCG content (typically 45-98% polyphenols) ensures batch-to-batch consistency.

Manufacturing watchpoints include potential oxidation of catechins during processing, which can reduce potency and cause discolouration. The bitter taste of catechins requires moderate masking, typically achieved with fruit flavours or sweeteners. Cost-per-mg is low, making it an economical active for high-volume gummy production. Decaffeinated versions are available but may have slightly different solubility profiles.

Camellia sinensis leaf extract is one of the most familiar and commercially understood gummy actives across EU and US markets. Brands position it around antioxidant support, energy and vitality, weight and metabolism, and daily wellness. Its low cost tier and good gummy applicability make it an accessible ingredient for private-label ranges, particularly for brands targeting health-conscious consumers seeking natural, plant-based ingredients.

From a formulation and manufacturing perspective, Camellia sinensis leaf extract is heat-stable and soluble in gummy matrices, which simplifies processing. The mild botanical taste requires moderate masking, typically achieved with fruit flavours or sweeteners. Standardisation to EGCG content ensures batch-to-batch consistency, and the extract is compatible with standard gummy manufacturing equipment. Decaffeinated versions are available for brands targeting evening or sensitive-consumer segments.

For pack copy, brands must adhere to strict claim discipline. Because Camellia sinensis leaf extract is a botanical on the EFSA on-hold list, no authorised health claims exist under Reg. (EU) 432/2012. Claim coverage must come from co-formulated nutrients such as Vitamin C (for antioxidant protection) or Magnesium (for energy metabolism). DAT reviews all claim wording per project to ensure compliance with EU and UK regulations. No disease claims, no "anti-inflammatory" wording, and no certification promises on pack until confirmed per project and batch.