Carrier Oils are nutrient-rich oils that can help skin maintain elasticity, vitality & moisture. each one has different properties, including thickness & aroma; this kit allows you to choose which is best for you and the blend youÕre creating. Avocado: Nourishes and restores dry, dehydrated and mature skin. this is a rich, heavy oil thatÕs best blended with other carrier oils. Castor: this oil acts as a humectant, attracting moisture to the skin. Castor oil packs applied with warm flannel are believed to be effective for pain relief and to draw out cysts, boils and warts. Grapeseed: Absorbed by the skin easily. ItÕs a light and penetrating oil for massage and is also used to create lotions, balms, creams and soap. Hemp: penetrates the skin easily and is particularly moisturizing for dry, damaged skin, eczema and psoriasis. Olive: Calms, relieves inflammation and moisturizes. It can be used pure or in blends for burns, sprains, bruises, insect bites and to relieve itchy skin.