What Are Carrier Oils ?
Base oils or carrier oils are used for one purpose,they carry the essential oil onto any given medium depending on the function of the oil.
For example it could be a essential oil lotion,room spray, bug spray or for bath salts or before they’re applied on the skin in massage and aromatherapy.
Here are 5 best carrier oils that are broadly used in any industries (no particular order),
Sweet Almond Oil
Sweet almond oil is extremely rich in essential fatty acids, minerals and vitamins, making it highly beneficial for skin, hair and nails.It can used for various purposes all you have do is mix it wil essential oils at 80%- 20% ratio. To learn more about sweet almond oil go here More info
Pure Coconut Oil
NEVER put ANYTHING on your skin that you cannot EAT! this one of the mantras thats out there when it comes pure 100% organic coconut oil. This oil can be used for beauty or cooking purposes.
Grape Seed Oil
Grapeseed oil is a good source of vitamin E, even more so than olive oil. Vitamin E is a vitamin that works as a fat-soluble antioxidant, which helps protect your cells from damaging free radicals that have been associated with cancer, heart disease, and other chronic illnesses. If you would like share this info check it out – Source
Cold Pressed Olive Oil
Cold–pressed virgin olive oil contains high amounts of monounsaturated fatty acids, polyphenols and antioxidants that provide many health benefits. source
Lowers Cholesterol Levels. The balance  of fatty acids found in sunflower oil, including a substantial amount of linoleic acid (an omega-6 fatty acid) is very good.
In conclusion, they are some of the cleanest and most used carrier oils for the mixing up your essential oils and reap the best benefits from you DIY projects.If you want more recipes or how to guide check out these sources and mingle with the community – More info