Yashad Bhasma (Zinc Ash)
Yashad Bhasma is a calcined zinc preparation in Ayurvedic medicine that provides bioavailable zinc ions for cellular functions. It primarily works by serving as a cofactor for over 300 enzymes involved in immune function, protein synthesis, and wound healing.

Origin & History
Yashad Bhasma is made from purified zinc, processed through traditional Ayurvedic techniques involving calcination to produce a fine ash.
Historical & Cultural Context
Traditionally, Yashad Bhasma has been used in Ayurveda for its immune-boosting and skin-healing properties, reflecting its cultural importance.
Health Benefits
- Boosts immune function by enhancing the activity of T-cells, crucial for fighting infections. - Supports skin health by promoting wound healing and reducing acne, thanks to its anti-inflammatory properties. - Enhances reproductive health by supporting hormone production, which can improve fertility. - Improves vision by protecting retinal cells from oxidative stress, crucial for maintaining eye health. - Aids in digestion by supporting enzyme production, which can enhance nutrient absorption. - Promotes hair health by strengthening hair follicles, reducing hair loss and promoting growth. - Balances blood sugar levels by improving insulin sensitivity, which can help manage diabetes.
How It Works
Yashad Bhasma releases zinc ions that act as cofactors for metalloenzymes including superoxide dismutase, carbonic anhydrase, and DNA polymerase. Zinc modulates immune function by supporting T-lymphocyte proliferation and enhancing natural killer cell activity. It also stabilizes cell membranes and promotes collagen synthesis through activation of prolyl hydroxylase and lysyl oxidase.
Scientific Research
Some studies indicate Yashad Bhasma may have benefits for immune support and skin health, but more research is needed to confirm its efficacy.
Clinical Summary
Limited clinical studies specifically on Yashad Bhasma exist, though zinc supplementation research is extensive. Studies on zinc supplementation show 20-40% reduction in common cold duration and 36% decrease in diarrhea episodes in children. Zinc deficiency correction studies demonstrate improved wound healing rates and enhanced immune markers. However, specific bioavailability and efficacy data for the bhasma form requires more research compared to standard zinc salts.
Nutritional Profile
Yashad Bhasma is not a food or dietary supplement in the conventional sense but a classical Ayurvedic mineral preparation (Bhasma) derived from purified zinc (Yashad/Jasad) subjected to repeated calcination (Shodhana and Marana processes). Its primary bioactive constituent is zinc oxide (ZnO), typically comprising 70–85% of the final ash, with trace amounts of other metal oxides depending on the source material and processing. Approximate composition per 100 mg of properly prepared Bhasma: Zinc (as zinc oxide): ~55–70 mg elemental zinc equivalent; Iron oxide (Fe₂O₃): trace amounts, typically <2%; Calcium oxide (CaO): trace, <1–3%; Silica (SiO₂): trace, <1–2%; Magnesium oxide (MgO): trace, <0.5%. The repeated incineration process (Puta system, often 7–21 cycles with herbal juices such as Nimbu Swarasa/lemon juice, Kumari Swarasa/aloe vera juice, or Triphala Kashaya) converts metallic zinc into nano-sized zinc oxide particles (typically 30–90 nm range as confirmed by modern XRD and TEM analyses). This nano-particulate form significantly enhances bioavailability compared to crude zinc metal or standard zinc supplements. The particle size reduction to the nanoscale increases the surface-area-to-volume ratio, facilitating better gastrointestinal absorption. Bioavailability notes: The traditional Anupana (vehicle/adjuvant) used for administration—commonly honey, ghee, or specific herbal decoctions—further enhances absorption. Studies suggest bioavailability of zinc from properly prepared Bhasma may be comparable to or exceed that of modern zinc salts (zinc sulfate, zinc gluconate) due to nano-sizing. Therapeutic dose is very small, typically 125–250 mg (1–2 Ratti), meaning elemental zinc intake per dose is approximately 70–175 mg. Contains no macronutrients (protein, fat, carbohydrates, fiber) and no vitamins. Caloric value is nil. The preparation must meet classical quality standards: it should be Varitara (floats on water), Rekhapurna (fills finger creases), Niśchandratva (lusterless), and Apunarbhava (irreversible to metallic form), ensuring safety and absence of free metallic zinc.
Preparation & Dosage
The recommended dosage of Yashad Bhasma is 30 mg to 125 mg per day. Consult a healthcare provider before use.
Synergy & Pairings
Amla, Neem, Ashwagandha
Safety & Interactions
Yashad Bhasma may cause nausea, metallic taste, and gastric irritation when taken on empty stomach. It can interfere with copper absorption and reduce effectiveness of tetracycline and quinolone antibiotics when taken simultaneously. Excessive intake may lead to copper deficiency and impaired immune function. Pregnant women should consult healthcare providers before use due to potential heavy metal contamination in traditional preparations.