{"product_id":"kosbee-prepared-rehmannia-root","title":"Korean Rehmannia Root – Prepared Shu Di Huang Blood Tonic 5.25oz","description":"\u003ch2\u003eWhat Is Prepared Rehmannia? (Shu Di Huang \/ Sukjihwang)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePrepared Rehmannia root\u003c\/strong\u003e — known as \u003cstrong\u003eShu Di Huang\u003c\/strong\u003e in Chinese herbalism and \u003cstrong\u003eSukjihwang (숙지황)\u003c\/strong\u003e in Korean — is one of the most respected tonic herbs in traditional East Asian wellness. It's a foundational ingredient practitioners turn to for deeply nourishing the blood and replenishing the body's reserves.\u003c\/p\u003e\n\u003cp\u003eThis is not the raw root. \"Prepared\" means it has gone through a traditional, labor-intensive transformation — and that process is exactly what makes it so valued.\u003c\/p\u003e\n\n\u003ch2\u003eThe \"Black Diamond\" — Traditionally Steamed for Depth\u003c\/h2\u003e\n\u003cp\u003eRaw Rehmannia root is pale and cooling. To create \u003cstrong\u003eprepared\u003c\/strong\u003e Rehmannia, the root is repeatedly \u003cstrong\u003esteamed and sun-dried\u003c\/strong\u003e — traditionally up to nine cycles (a method known in Korea as \u003cem\u003egujeung-gupo\u003c\/em\u003e, \"nine steamings and nine dryings\").\u003c\/p\u003e\n\u003cp\u003eThis patient process transforms the root completely. It turns a deep, glossy black, develops a soft, chewy, almost date-like texture, and takes on a rich, naturally sweet, molasses-like flavor. Herbalists sometimes call the result a \u003cstrong\u003e\"black diamond\"\u003c\/strong\u003e — and that dark, sticky appearance isn't a flaw. \u003cstrong\u003eIt's the visible proof of proper traditional preparation.\u003c\/strong\u003e A pale or dry \"prepared\" Rehmannia simply hasn't been made correctly.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Korean-Grown Rehmannia Matters\u003c\/h2\u003e\n\u003cp\u003eSearch for \"Shu Di Huang\" on most marketplaces and you'll find bulk Chinese-grown root with little origin transparency — and common complaints about poor packaging and quality. \u003cstrong\u003eKosbee Prepared Rehmannia is 100% Korean-grown\u003c\/strong\u003e, cultivated under Korea's strict agricultural standards, traditionally prepared, and hygienically sealed in a resealable pouch with a clear Nutrition Facts panel.\u003c\/p\u003e\n\u003cp\u003eEach 5.25 oz \/ 150 g pouch contains \u003cstrong\u003e100% pure Korean prepared Rehmannia root\u003c\/strong\u003e — naturally sweet, with zero added sugar.\u003c\/p\u003e\n\n\u003ch2\u003eA Naturally Mineral-Rich Tonic Herb\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePotassium 9% DV\u003c\/strong\u003e (436 mg) per 10 g serving\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIron 6% DV\u003c\/strong\u003e (1 mg) per serving\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e0 g added sugar\u003c\/strong\u003e — the deep sweetness is entirely natural\u003c\/li\u003e\n  \u003cli\u003eSingle ingredient: 100% Korean prepared Rehmannia root\u003c\/li\u003e\n  \u003cli\u003eTraditionally used as a Yin and Blood tonic in East Asian herbalism*\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTraditionally a Blood \u0026amp; Yin Tonic\u003c\/h2\u003e\n\u003cp\u003eIn traditional East Asian herbalism, prepared Rehmannia is the classic herb for \u003cstrong\u003enourishing the blood and replenishing Yin\u003c\/strong\u003e — the body's deep, restorative reserves.* It's often chosen by those navigating fatigue, busy life seasons, or hormonal transitions, and it is a cornerstone herb in women's wellness formulas.*\u003c\/p\u003e\n\n\u003ch2\u003eHow to Use Rehmannia Root\u003c\/h2\u003e\n\n\u003ch3\u003e1. Vitality Tea (Sukjihwang-cha)\u003c\/h3\u003e\n\u003cp\u003eAdd \u003cstrong\u003e10–20 g of Rehmannia to 1 liter (4 cups) of water\u003c\/strong\u003e. Bring to a boil, then reduce to low and simmer gently for \u003cstrong\u003eat least 1 hour\u003c\/strong\u003e. Brewed on its own, it produces a tea as dark as black coffee with a smooth, naturally sweet, molasses-like flavor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigestion tip:\u003c\/strong\u003e Rehmannia is rich and \"heavy\" by nature. Simmering it with a few slices of fresh ginger makes the tea easier on the stomach — a traditional pairing.\u003c\/p\u003e\n\n\u003ch3\u003e2. Si Wu Tang — The Classic Women's Wellness Blend\u003c\/h3\u003e\n\u003cp\u003ePrepared Rehmannia is the base of \u003cstrong\u003eSi Wu Tang (\"Four Substance Decoction\")\u003c\/strong\u003e, one of the most famous traditional women's wellness formulas. Simmer Rehmannia together with \u003cstrong\u003eAngelica root (dang gui), Cnidium (chuan xiong), and White Peony root (bai shao)\u003c\/strong\u003e for a time-honored restorative blend.\u003c\/p\u003e\n\n\u003ch3\u003e3. Restorative Soup Base\u003c\/h3\u003e\n\u003cp\u003eAdd a few pieces to samgyetang, Korean galbitang, or any long-simmered bone broth. Rehmannia deepens the broth's color and flavor while turning an everyday soup into a nourishing restorative meal.\u003c\/p\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWomen seeking hormonal harmony\u003c\/strong\u003e — those exploring natural East Asian herbs for menstrual comfort, postpartum recovery, or menopausal balance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTCM and acupuncture patients\u003c\/strong\u003e advised to take a \"Yin tonic\" or \"Blood tonic\" who want a trustworthy, traceable prepared Rehmannia to brew themselves\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdults facing chronic fatigue or burnout\u003c\/strong\u003e who want a deep, restorative tonic rather than a quick caffeine fix\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHome herbalists\u003c\/strong\u003e assembling traditional formulas like Si Wu Tang\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Safety Information\u003c\/h2\u003e\n\u003cdiv style=\"border-left:3px solid #c0392b;padding:8px 14px;background:#fdecea;\"\u003e\n  \u003cp\u003e\u003cstrong\u003e⚠ Heavy and rich by nature.\u003c\/strong\u003e Rehmannia is considered \"cloying\" in traditional herbalism — it can be hard to digest for those with weak digestion or frequent bloating if taken alone in large amounts. Simmering with digestive herbs like fresh ginger is strongly recommended.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e⚠ Blood sugar.\u003c\/strong\u003e Rehmannia may affect blood sugar levels. If you take diabetes medication, consult your doctor before regular use.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e⚠ Pregnancy and nursing:\u003c\/strong\u003e Please consult a healthcare provider before consuming.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e⚠ Brew, don't snack.\u003c\/strong\u003e Rehmannia is used as a brewing and decoction herb. Simmer it, then strain — only the resulting tea or broth is consumed.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eStorage — Refrigeration Recommended\u003c\/h2\u003e\n\u003cp\u003eBecause prepared Rehmannia is steamed and naturally moist and sticky, proper storage matters. After opening, seal the zipper pouch tightly and \u003cstrong\u003estore in the refrigerator\u003c\/strong\u003e to preserve freshness and prevent spoilage. For longer storage, the freezer works well. Best used within 6 months of opening.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhy is this root so black and sticky? Is that normal?\u003c\/h3\u003e\n\u003cp\u003eYes — that's exactly how properly prepared Rehmannia should look. The deep black color and soft, sticky, date-like texture are the direct result of repeated traditional steaming and drying. A pale, dry \"prepared\" Rehmannia hasn't been made correctly. The black, glossy appearance is the mark of authentic preparation.\u003c\/p\u003e\n\n\u003ch3\u003eIs Kosbee Rehmannia from Korea or China?\u003c\/h3\u003e\n\u003cp\u003e100% grown and traditionally prepared in Korea. Most \"Shu Di Huang\" sold online is bulk Chinese-grown with limited origin transparency. Kosbee Rehmannia is cultivated under Korea's strict agricultural standards, hygienically sealed, and clearly labeled with country of origin and Nutrition Facts.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I make Rehmannia easier to digest?\u003c\/h3\u003e\n\u003cp\u003eRehmannia is rich and \"heavy\" by nature. The traditional solution is to simmer it with digestive herbs — fresh ginger is the most common and effective. Start with smaller amounts, brew it well for at least an hour, and avoid taking large quantities alone if you have sensitive digestion.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is Si Wu Tang and how does Rehmannia fit in?\u003c\/h3\u003e\n\u003cp\u003eSi Wu Tang (\"Four Substance Decoction\") is a classic traditional women's wellness formula. Prepared Rehmannia is its foundational ingredient, simmered together with Angelica root, Cnidium, and White Peony root. It's one of the most well-known blood-nourishing blends in East Asian herbalism.\u003c\/p\u003e\n\n\u003ch3\u003eHow long does one pouch last?\u003c\/h3\u003e\n\u003cp\u003eOne 5.25 oz (150 g) pouch provides approximately 15 servings at 10 g each. Used for daily tea or blended into formulas, a pouch typically lasts about two weeks to a month, depending on how frequently and how strongly you brew.\u003c\/p\u003e\n\n\u003cp style=\"font-size:12px;color:#666;margin-top:24px;\"\u003e* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.\u003c\/p\u003e","brand":"KOSBEE","offers":[{"title":"Default Title","offer_id":35593763586203,"sku":"Herb0884","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0260\/6681\/3021\/files\/kosbee-premium-korean-prepared-rehmannia-glutinosa-sukjihwang-150g.webp?v=1775855645","url":"https:\/\/kosbee.com\/products\/kosbee-prepared-rehmannia-root","provider":"Kosbee","version":"1.0","type":"link"}