Dr-Meinaier Jamaican Black Castor Oil. It's a natural, multi-purpose oil that is good for hair, skin, eyelashes, brows, beards, and nails. Jamaican Black Castor Oil is produced by roasting the castor beans before extracting the oil, which gives it a dark color. It is known for its moisturizing properties and is rich in fatty acids, which are beneficial for skin and hair. Here are some of its benefits: Hair: Promotes hair growth, improves scalp circulation, reduces irritation, and strengthens hair. Skin: Moisturizes, softens, and helps to heal uneven skin tones. Eyelashes & Brows: Provides essential nutrients for growth. Other Uses: Can be used to moisturize dry and chapped lips. Key Features Key Features While castor oil is often used to promote hair growth, it is important to note that there is no scientific evidence to support this claim. Also, using it can cause build-up on the scalp, clogged pores, dandruff, itching, and irritation