LEMON: This is a one ounce bottle of Organic Lemon Essential Oil. It comes in an amber glass bottle with an eyedropper cap. It is a high quality essential oil that diffuses and blends with other essential oils and carrier oils well. Since it is pure essential oil, you do need to dilute it with a carrier oil before applying directly to skin. Lemon Oil is an energizing scent, and also is great for focus and concentration. However, be aware that lemon essential oil can cause photosensitivity, so be careful creating wearable products with this oil and then going out in the sun. The 10 price tag is about average for high quality, pure essential oils sold in smaller bottles. This is an appropriate price for this particular essential oil in a bottle of this size, and a better buy per ounce than 1 ounce bottles of lemon oil of comparable quality from other brands. This is a quality EO, despite the reasonable price, and you won't regret buying this if you are looking to add lemon to your EO collection. PEPPERMINT: I also got some of the Peppermint EO, and it is also great. I use peppermint in my bug repellent and energy blends, so I know what a good Peppermint EO should smell like, and this fits the bill. You can never go wrong with EOs from this company. SPEARMINT: Yet another winner from Handcrafted Blends. This spearmint smells exactly as it should. It diffuses well, blends well, and passes the "white paper test." It is certified organic and ethically sourced. I always recommend oils from this company, as they are all well priced as well as high quality. ORANGE: I use a lot of Orange Essential Oil, as it is a crucial ingredient in my bug repelling blends. This orange oil has the right scent, and it blends well with other essential oils. I use those glass bottles with the wooden tops to hang an orange-heavy repellent blend in the cabinet in which I keep my trash can, and this orange oil works wonderfully in those types of passive diffusers. I also use it in an energy blend that I use in both my ultrasonic and nebulizing diffusers, and this works great in those as well. Handcrafted Blends is one of my favorite essential oil manufacturers, and I recommend you try any and all of their essential oils. They are high quality EOs at a great price point.