Almonds are the seeds of the almond tree, which belongs to the plum family (Prunus). Its fruits share considerable similarities with those of its relatives, such as apricot and peach. These crops flourish in sunny regions, such as the Mediterranean, California, the Middle East, and North Africa. Hiding deep within the soft flesh of the fruit is a hard pit that reveals a tender almond when broken open.

There are two types of almonds: sweet and bitter. Sweet almonds, which grow on the Prunus dulcis tree, are the ones we eat. Their scent is very faint, if there's any. They can be ground, pressed into oil, or blended with water to produce milk. This explains why almond oil is often called 'sweet' almond oil. On the other side, bitter almonds (Prunus amygdalus amara) are not suitable for consumption, but they can be distilled into a fragrant essential oil, renowned in perfumery.

In general, almond-derived products are soothing and conditioning to the skin and hair, as well as being emollient and rich in vitamin E (an antioxidant).

But the benefits also depend on the type of ingredient, of course. For example:

- Almond oil is moisturising.
- Ground almonds gently exfoliate the skin.
- Almond essential oil has a sweet, cherry-like aroma.
- Almond butter is more moisturising than the oil.