Vitamin D3 and K2 - Liquid

Unless a product specifically states “Refrigerate After Opening,” we suggest you do not refrigerate. Keep at room temperature: 68 to 77°F (20 to 25°C).

Yes. Established in 1972, Nature’s Answer® owns and operates North America’s most extensive herbal manufacturing, quality-control facilities and climate-controlled modern warehouse-distribution complex. Our 140,000 square foot facility houses a Kosher-inspected, NSF / GMP certified manufacturing and packaging operation along with our own Research & Development, Analytical Quality-Control/Quality Assurance and Microbiological Laboratories.

As standard procedure, each ingredient batch is rigorously-tested in our own analytical laboratories. Our expert team of natural product chemists, pharmacognosists, microbiologists, formulation chemists and herbalists each contribute to maintaining the absolute highest standards of excellence. Natural Herbal/Botanical extracts are what we’ve specialized in for over 44 years and why you can trust that our products come from the very best of nature, dedicated people and our state of-the-art manufacturing and testing practices. We employ a comprehensive Quality-Control / Quality Assurance program that includes testing of all raw materials/ingredients, product manufacturing batches while in-process, as well as finished/packaged products. We test for heavy metals (lead, cadmium, etc.), microbiological contaminants, salmonella, insecticides, insect parts, etc. Using our exclusive Advanced Botanical Fingerprint Technology®, we meticulously identify and test every ingredient used in our products to verify each ingredient meets all levels of our strict quality, specifications, compliance and safety standards. Ultra Performance Liquid Chromatography Mass Spectrometry (UPLC-MS) laboratory instrumentation is utilized to identify, analyze and ensure the quality, purity and efficacy of herbal/botanical ingredients, each carefully selected for the supplements we formulate, produce and supply. This advanced instrumentation quantifies specific constituents, markers and natural distribution patterns unique to each plant. This process accurately determines identity and purity, completely assuring you are getting the very best herbal ingredients Mother Nature provides.

As standard procedure, each ingredient batch is rigorously-tested in our own analytical laboratories. Our expert team of natural product chemists, pharmacognosists, microbiologists, formulation chemists and herbalists each contribute to maintaining the absolute highest standards of excellence. Natural Herbal/Botanical extracts are what we’ve specialized in for over 44 years and why you can trust that our products come from the very best of nature, dedicated people and our state of-the-art manufacturing and testing practices. We employ a comprehensive Quality-Control / Quality Assurance program that includes testing of all raw materials/ingredients, product manufacturing batches while in-process, as well as finished/packaged products. We test for heavy metals (lead, cadmium, etc.), microbiological contaminants, salmonella, insecticides, insect parts, etc. Using our exclusive Advanced Botanical Fingerprint Technology®, we meticulously identify and test every ingredient used in our products to verify each ingredient meets all levels of our strict quality, specifications, compliance and safety standards. Ultra Performance Liquid Chromatography Mass Spectrometry (UPLC-MS) laboratory instrumentation is utilized to identify, analyze and ensure the quality, purity and efficacy of herbal/botanical ingredients, each carefully selected for the supplements we formulate, produce and supply. This advanced instrumentation quantifies specific constituents, markers and natural distribution patterns unique to each plant. This process accurately determines identity and purity, completely assuring you are getting the very best herbal ingredients Mother Nature provides.