DMSO has been used for over 100 years in the United States. It is a natural substance derived from wood pulp and is harmless when used with the proper precautions. DMSO is an organic, colorless, natural, non-synthesized liquid extracted from lignin. Pure 99.9% DMSO can exist in either a liquid or solid/crystalline state. Above 18.5°C (65.3°F), DMSO is in a liquid state, while below this temperature, it solidifies into crystals. In the case of it being in a crystalline state, you can place it in a wide container or pot with hot water (not boiling) and cover it if possible. The water level should not exceed the neck of the bottle. After 30-60 minutes, replace the water with hot water and then store the bottle at room temperature above its melting point. Alternatively, you can place it on a heater until it becomes a liquid again. After use, ensure a tight seal (the bottle neck must be dry before closing) to prevent spills. Universal multipurpose solvent Content: min. 99.9% Made from pharma quality ingredients (Ph. Eur.) Quantity: 100ml Glass bottle incl. pipette Appearance: clear, colorless Mild, characteristic sulfur odor. Packed in strong & hard heavy-duty cardboard tube. Caution: Keep it out of the reach of children. Avoid contact with eyes. Store away from direct sunlight. This product can be used for various applications, and the choice of the process used is the sole responsibility of the user. This product is not intended to diagnose, cure, or prevent any disease.