Wild Herb USP Menthol Crystals are derived from the steam distillation of Mentha arvensis and Mentha piperita (wild mint plants). After distillation, the essential oil is chilled at freezing temperatures, producing crystals of exceptional purity. Our menthol contains 99.5% L-menthol, one of the highest grades available. Clear and strongly aromatic with a peppermint-like scent, menthol crystals are widely used for their cooling, refreshing properties. They dissolve easily in alcohol, essential oils, and carrier oils, but are almost insoluble in water or glycerin. Melting point is approximately 105–107 °F. Always stir thoroughly to ensure complete dissolution and reduce the risk of skin irritation. Menthol is popular in formulations such as ointments, liniments, balms, and soaps, both for its cooling effect and its historical use as an analgesic. Usage rate in topical products typically ranges from 5–20%. In soap making, add menthol crystals during the oil phase for best results. Our all-natural menthol crystals are sold by weight and are sourced to ensure consistent purity and quality. Details• INCI: Menthol• Purity: 99.5% L-Menthol• Melt Point: 107.6 °F• Flash Point: 199.4 °F• Appearance: Clear crystals with strong minty aroma• Solubility: Soluble in alcohol, essential oils, carrier oils; nearly insoluble in water/glycerin Important Shipping Note:Menthol crystals must pass through the Phoenix, AZ postal system where summer temperatures can exceed 100 °F. Crystals may arrive partially melted. If so, place in the refrigerator, then lightly tap with a rubber mallet to break apart. Please consider this before ordering. Shipping:We normally ship via USPS. Packages weighing 30+ lbs may ship via UPS Ground. If using a PO box, include both your street address and PO box number.