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The spice known as nutmeg is manufactured from the seeds of the tropical evergreen tree Myristica fragrans (family Myristicaceae). Nutmeg is used to flavour a variety of baked items, confections, puddings, potatoes, meats, sausages, sauces, vegetables, and beverages like eggnog. It has a distinctly pungent scent and a toasty, somewhat sweet taste. Nutmeg is believed to have antibacterial, anti-inflammatory, and antioxidant properties, which could help to improve the overall health and appearance of the skin. Nutmeg cream is often used to address issues such as acne, inflammation, and signs of aging. It may also help to improve skin texture and tone, as well as reduce the appearance of dark spots and blemishes. Spreadability of the developed formulation was good. The cream's PH and viscosity were both good. During storage, cream doesn't exhibit any phase separation of any kind.

Particulate dispersions or solid particles with a size below 100nm are categorised as nanoparticles. They inherently possess superior properties than bulk material in terms of mechanical strength, thermal stability catalytic activity, electrical conductivity, magnetic properties, optical properties, surface properties, etc. which make their end use application area much wide. Popularly used metal nanoparticles in various fields, such as textile, biomedical, health care, food agriculture, industrial, electronics, renewable energy, environment, etc. are silver, gold, copper, alumina, titanium dioxide, zinc oxide. They can be synthesised either of chemical, physical, mechanical or biological method. However, the chemical, physical and mechanical methods have major drawbacks of toxicity, high cost and high energy. Against that biological method is safe, cheaper and consumes less energy. The source material used in this synthesis process is normally plants, fungi, yeast, actinomycetes, bacteria, etc. and system is also classified accordingly. Hence nanoparticles are usually reinforced in base material to enhance its functional characteristics required, and such nanocomposites can be used more preferentially by end users. Cosmetic, medical, photo thermal therapy, drug delivery, biosensors, cancer therapy, imaging, antimicrobial agent, etc. are some of the identified domains of end users.