There are hundreds of different essential oils. One company offers over 40 essential oil singles and 19 different blends. Just ten of them will cover most people's needs. But if you'd like to utilize more essential oils, you can check out our list. Over the years we've found our favorites and we use some single oils more than others which helped us in categorizing them. Please keep in mind, this list is based on our personal preference, and your list of preferred oils may be a little different. Continue to research and try out different oils. But if you don't know where to start, feel free to use this list as a baseline for essential oil singles. Keep in mind, this list does not include blends (which may be a better alternative than a single essential oil). Which Essential Oils Should I Have in My Collection?The Basics:These are some of the most popular and commonly used oils. Lemon, Lavender, Peppermint, Melaleuca, Oregano, Frankincense Alternative Citrus Oils:Looking for something different than lemon? These are other citrus oils. Bergamot, Grapefruit, Lime, Orange Oil that we use for cooking:Citrus oils are great for baking. Peppermint is great for brownies. For cooking, ginger oil is a great substitute than using ginger. Some people love using herbal oils such as rosemary in cooking. Ginger Special Oils:These are oils that cost more than the average oil but are great for your collection. There are a lot of other common oils that have similar effects, but these just are on a different level. For example, in terms of skin recovery, helichysum is on another level than lavender. Melissa is an another level than other mood type oils. Helichrsyum, Melissa, Hawaiian Sandalwood Secondary Oils Arborvitae (alternative to Melaleuca), Cardamom (Alternative to Respiratory or Digestive Blend), Clove (curb addiction, toothache), Clary Sage (alternative to Monthly Blend), Eucalyptus (alternative to Respiratory Blend), Cedarwood (alternative to Respiratory, Grounding, or Repellent Blend), Wintergreen (alternative to Soothing Blend) Other Oils Commonly Used In Aromatherapy (not mentioned above) We use a lot of these oils, but some it isn't mentioned a lot in classes as much as it is in aromatherapy books. One of the reasons is that the blends have these oils or blends are used in place of these oils. Cypress, Geranium, Roman Chamomile, Rosemary, Patchouli, Vetiver, White Fir, Sandalwood, Ylang Ylang Oils that we personally like to use (not mentioned above): Cinammon, Black Pepper Oils we don't use often:Some of the reasons we don't use these oils is that we may not like the aroma (like fennel) but you may (a lot of people love the smell of juniper berry). In some cases, we use a blend like Zendocrine for cleanse instead of Cilantro. In other cases, the oil just doesn't fit our need as it does with other people. Although these are on the list of oils that "we don't often use", you may include these in your everyday use. Basil, Cassia, Coriander (some use it for pancreas support), Cilantro (it's in detox blends), Fennel, Juniper Berry, Lemongrass (some use for varicose veins), Marjoram (some use for circulation), Myrrh (It's in anti-aging blend), Thyme What oils will you have in your collection? Which oils will you use?