Synergy Production Laboratories (SPL) has developed a line of certified organic, kosher and fresh freeze-dried Synergized® herbs. According to the company, the fresh freeze-dried herbs are preserved so that they are biochemically identical to their fresh counterparts. All the freeze-dried herbs’ essential oils, pigments, phytonutrients, polysaccharides and enzymes remain fully intact. Using proprietary technologies, SPL produces a variety of certified organic, kosher and fresh freeze-dried herb powders, including nettle, red clover, ginkgo, dandelion, parsley, yellow dock, skullcap and burdock.