{"id":1931,"date":"2026-10-14T16:02:11","date_gmt":"2026-10-14T08:02:11","guid":{"rendered":"https:\/\/uredanaturals.com\/?post_type=product&p=1931"},"modified":"2026-10-14T16:02:12","modified_gmt":"2026-10-14T08:02:12","slug":"epicatechin-ec","status":"publish","type":"product","link":"https:\/\/uredanaturals.com\/es\/producto\/epicatechin-ec\/","title":{"rendered":"Epicatechin (EC)"},"content":{"rendered":"

Ureda Naturals manufactures Epicatechin (EC)<\/strong>, a green tea-derived epicatechin extract standardized to 90%, 95%, or 98% EC on a dry basis<\/strong>. The material is supplied as an off-white powder with caffeine controlled at \u22640.1%<\/strong> for dietary supplement, functional food, beverage, and cosmetic formulation development.<\/p>\n

Product Overview<\/h2>\n

Epicatechin (EC) is a defined flavan-3-ol catechin derived from green tea. Ureda Naturals supplies standardized EC grades for formulations that require a controlled EC marker rather than a broad total-polyphenol declaration.<\/p>\n

EC is a specific compound. It is not interchangeable with EGCG, ECG, EGC, total catechins, or total tea polyphenols. Each represents a different analytical target, so the selected marker must remain consistent from purchasing and formula calculation through finished-product release.<\/p>\n

The material is supplied as an off-white powder and is described as water-soluble. Water solubility alone does not determine the clarity, sedimentation, or storage stability of a finished beverage or cosmetic formula. Those results depend on the complete formulation and manufacturing process.<\/p>\n

Product Specification<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Product name<\/td>\nEpicatechin (EC)<\/td>\n<\/tr>\n
CAS No.<\/td>\n490-46-0<\/td>\n<\/tr>\n
Source<\/td>\nGreen tea<\/td>\n<\/tr>\n
Molecular formula<\/td>\nC15<\/sub>H14<\/sub>O6<\/sub><\/td>\n<\/tr>\n
Form<\/td>\nPowder<\/td>\n<\/tr>\n
Appearance<\/td>\nOff-white powder<\/td>\n<\/tr>\n
Epicatechin content<\/td>\n90%, 95%, or 98% on a dry basis<\/td>\n<\/tr>\n
Caffeine<\/td>\n\u22640.1%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

EC Grade Selection<\/h2>\n\n\n\n\n\n\n\n
EC Grade<\/th>\nFormulation Positioning<\/th>\nSuitable When<\/th>\n<\/tr>\n<\/thead>\n
EC 90%<\/td>\nBalanced active concentration and powder loading<\/td>\nThe formula can accommodate a higher ingredient addition<\/td>\n<\/tr>\n
EC 95%<\/td>\nIntermediate active density<\/td>\nThe project requires a balance between EC concentration, loading, and cost<\/td>\n<\/tr>\n
EC 98%<\/td>\nHigh active density with lower carrier contribution<\/td>\nThe formula requires a concentrated EC input or a lower total powder addition<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For a theoretical target of 100 mg EC, the approximate ingredient quantities are:<\/p>\n\n\n\n\n\n\n\n
Selected Grade<\/th>\nApproximate Quantity Before Process-Loss Adjustment<\/th>\n<\/tr>\n<\/thead>\n
EC 90%<\/td>\n111.1 mg<\/td>\n<\/tr>\n
EC 95%<\/td>\n105.3 mg<\/td>\n<\/tr>\n
EC 98%<\/td>\n102.0 mg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Formula calculations should use the minimum contracted assay of the selected grade. Finished-product recovery and content uniformity should then be checked using the customer\u2019s actual manufacturing process.<\/p>\n

EC Compared with Other Green Tea Actives<\/h2>\n\n\n\n\n\n\n\n\n
Material<\/th>\nAnalytical Identity<\/th>\nWhy It Is Not Interchangeable with EC<\/th>\n<\/tr>\n<\/thead>\n
Epicatechin (EC)<\/td>\nA defined catechin marker<\/td>\nThe target assay is EC itself<\/td>\n<\/tr>\n
EGCG<\/td>\nA different gallated catechin<\/td>\nIt has a different molecular identity and assay target<\/td>\n<\/tr>\n
Total catechins<\/td>\nA combined group of catechin compounds<\/td>\nThe total value does not show how much EC is present<\/td>\n<\/tr>\n
Total tea polyphenols<\/td>\nA broader group of tea constituents<\/td>\nIt cannot be used to calculate or release a specific EC dose<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

From EC Selection to Finished-Product Performance<\/h2>\n\n\n\n\n\n\n\n\n\n
Raw-Material Factor<\/th>\nCustomer Process Step<\/th>\nObservable Risk<\/th>\nBuyer Action<\/th>\n<\/tr>\n<\/thead>\n
EC assay grade<\/td>\nWeighing and dosing<\/td>\nIncorrect active loading<\/td>\nCalculate from the minimum assay of the selected grade<\/td>\n<\/tr>\n
Particle-size or flow differences<\/td>\nDry blending<\/td>\nSegregation or fill variation<\/td>\nUse geometric dilution and blend-uniformity checks<\/td>\n<\/tr>\n
Wetting and dispersion behavior<\/td>\nBeverage premix<\/td>\nFloating particles, haze, or sediment<\/td>\nTest the complete formula rather than water alone<\/td>\n<\/tr>\n
pH, minerals, proteins, and fibers<\/td>\nLiquid formulation<\/td>\nPrecipitation or loss of clarity<\/td>\nScreen pH and ingredient addition order<\/td>\n<\/tr>\n
Heat and holding time<\/td>\nRTD processing and storage<\/td>\nColor drift or EC recovery change<\/td>\nCheck the product after thermal processing and storage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Dry Blends, Capsules, and Tablets<\/h3>\n

EC is often used at a controlled inclusion level because the selected grade contains a high proportion of the target marker. When the EC addition is small compared with the total batch, differences in particle size, bulk density, flow, or electrostatic behavior between EC and the carrier system can increase the risk of segregation.<\/p>\n

    \n
  • Prepare a controlled EC pre-blend using geometric dilution.<\/li>\n
  • Avoid charging a small amount of EC directly into the full batch.<\/li>\n
  • Control transfer distance, vibration, and hopper residence time.<\/li>\n
  • Sample the beginning, middle, and end of the blend.<\/li>\n
  • Confirm blend uniformity or content uniformity using EC as the marker.<\/li>\n<\/ul>\n

    If EC results vary across the blend, the buyer should review the pre-blend ratio, addition sequence, mixing time, transfer conditions, and powder-flow behavior.<\/p>\n

    Powder Beverages and Sachets<\/h3>\n

    A water-only beaker test is not a substitute for a full-formula beverage evaluation. Acidulants, minerals, proteins, fibers, sweeteners, flavors, and other botanical ingredients can change wetting, dispersion, haze, sedimentation, color, and recovery.<\/p>\n

    A useful beverage pilot should record:<\/p>\n

      \n
    • Wetting and dispersion time<\/li>\n
    • Visible undissolved particles<\/li>\n
    • Haze or loss of clarity<\/li>\n
    • Sediment after a defined holding period<\/li>\n
    • Color immediately after reconstitution and after storage<\/li>\n
    • EC recovery in the finished beverage<\/li>\n<\/ul>\n

      Liquid and Ready-to-Drink Products<\/h3>\n\n\n\n\n\n\n\n\n\n
      Manufacturing Stage<\/th>\nObservable Result<\/th>\nFormulation Decision<\/th>\n<\/tr>\n<\/thead>\n
      Premix and addition<\/td>\nFloating particles, clumps, or slow wetting<\/td>\nUse a premix or staged addition when required<\/td>\n<\/tr>\n
      pH adjustment<\/td>\nColor change, haze, or precipitation<\/td>\nDefine a suitable pH operating range<\/td>\n<\/tr>\n
      Mineral or protein addition<\/td>\nSediment, flocculation, or loss of clarity<\/td>\nReview ingredient compatibility and addition order<\/td>\n<\/tr>\n
      Thermal processing<\/td>\nColor change or altered EC recovery<\/td>\nConfirm compatibility with the selected heat profile<\/td>\n<\/tr>\n
      Holding and storage<\/td>\nSediment, color drift, or assay change<\/td>\nReview packaging and storage conditions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Cosmetic Formulations<\/h3>\n

      EC can be used in the development of serums, emulsions, masks, and other cosmetic formats. Clear or translucent products require particular attention to color, haze, precipitation, pH compatibility, and storage stability.<\/p>\n

      For opaque emulsions, the main checks may include compatibility with polymers, surfactants, oils, minerals, preservatives, and the selected pH range. The same EC grade may perform acceptably in an opaque emulsion but require additional formulation work for a clear serum.<\/p>\n

      Quality Documentation for Commercial Qualification<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Quality Area<\/th>\nBuyer Purpose<\/th>\n<\/tr>\n<\/thead>\n
      Product specification<\/td>\nDefines release requirements for the selected EC grade<\/td>\n<\/tr>\n
      Lot-specific COA<\/td>\nReports test results for the corresponding shipment<\/td>\n<\/tr>\n
      Assay basis and method<\/td>\nConfirms how EC content is calculated and reported<\/td>\n<\/tr>\n
      Caffeine specification<\/td>\nControls caffeine contribution from the green tea ingredient<\/td>\n<\/tr>\n
      Physical quality<\/td>\nSupports powder handling, blending, filling, and dispersion<\/td>\n<\/tr>\n
      Moisture and ash<\/td>\nSupports storage and non-active residue evaluation<\/td>\n<\/tr>\n
      Particle size and bulk density<\/td>\nHelps assess flow, filling, blending, and reconstitution<\/td>\n<\/tr>\n
      Heavy metals, pesticides, and residual solvents<\/td>\nSupports safety and regulatory review<\/td>\n<\/tr>\n
      Microbiological quality<\/td>\nSupports food, supplement, and cosmetic release<\/td>\n<\/tr>\n
      TDS and SDS<\/td>\nSupports formulation, handling, transport, and internal approval<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Ureda Naturals supports purchasing review with the applicable specification, lot-specific COA, TDS, SDS, and quality-system documentation for the selected EC grade.<\/p>\n

      Applications<\/h2>\n
        \n
      • Dietary supplement capsules and tablets<\/li>\n
      • Stick packs and sachets<\/li>\n
      • Functional food and nutrition powders<\/li>\n
      • Powdered beverage systems<\/li>\n
      • Ready-to-drink beverage formulations<\/li>\n
      • Cosmetic serums<\/li>\n
      • Cosmetic emulsions and masks<\/li>\n
      • Multi-catechin formulations where EC is the defined target marker<\/li>\n<\/ul>\n

        The appropriate grade should be selected according to the required EC dose, powder loading, caffeine limit, dosage form, processing conditions, and finished-product appearance.<\/p>\n

        Supply, Packaging, and Storage<\/h2>\n
          \n
        • MOQ:<\/strong> 1 kg<\/li>\n
        • Bag options:<\/strong> 1 kg, 5 kg, or 10 kg<\/li>\n
        • Drum options:<\/strong> 5 kg, 10 kg, or 25 kg<\/li>\n
        • Inner packaging:<\/strong> PE liner with aluminium-foil barrier protection<\/li>\n
        • Outer packaging:<\/strong> Carton or fibre drum<\/li>\n
        • Storage:<\/strong> Keep tightly sealed in a cool, dry environment and protect from moisture, direct light, and prolonged heat exposure<\/li>\n<\/ul>\n

          Frequently Asked Questions<\/h2>\n
          \nWhat does the EC percentage mean?<\/summary>\n

          The EC percentage refers to the Epicatechin assay on a dry basis. It does not represent total tea polyphenols, total catechins, or EGCG content.<\/p>\n<\/details>\n

          \nHow should I choose between EC 90%, EC 95%, and EC 98%?<\/summary>\n

          Choose EC 90% when the formula can accommodate a higher ingredient addition, EC 95% when a balanced active concentration is required, and EC 98% when the formula needs higher EC density with less carrier contribution.<\/p>\n<\/details>\n

          \nIs Epicatechin the same as EGCG?<\/summary>\n

          No. Epicatechin and EGCG are different catechins with different molecular identities and assay targets. They should be purchased and released under separate specifications.<\/p>\n<\/details>\n

          \nDoes water solubility guarantee beverage clarity?<\/summary>\n

          No. Water-solubility behavior does not guarantee clarity in a finished beverage. Acids, minerals, proteins, fibers, flavors, heat treatment, holding time, and storage can affect haze and sedimentation.<\/p>\n<\/details>\n

          \nWhat should be checked during a beverage pilot?<\/summary>\n

          The main observations are wetting time, dispersion, undissolved particles, haze, sediment, color change, EC recovery, and stability after the intended processing and storage conditions.<\/p>\n<\/details>\n

          \nCan Epicatechin be used in cosmetics?<\/summary>\n

          Yes. EC can be evaluated in serums, emulsions, masks, and other cosmetic formats. Clear systems require particular attention to color, haze, precipitation, pH compatibility, and storage stability.<\/p>\n<\/details>\n

          \nWhat documents are used for purchasing approval?<\/summary>\n

          The purchasing review normally uses the specification for the selected EC grade, the corresponding lot-specific COA, TDS, SDS, and applicable quality documentation.<\/p>\n<\/details>\n

          For quotation, sampling, or technical review, specify the required EC grade, target dosage form, EC assay, caffeine limit, estimated order quantity, and packaging preference.<\/p>","protected":false},"excerpt":{"rendered":"

          Ureda Naturals manufactures Epicatechin (EC), a green tea-derived extract standardized to 90%, 95%, or 98% EC on a dry basis. 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