Lemon and coconut oil can be combined to create a simple and effective recipe for the skin. However, it's important to note that lemon juice can be quite acidic and may cause irritation or sensitivity in some individuals. Therefore, it's crucial to perform a patch test before applying any new ingredient or mixture to your skin.

Here's a recipe you can try:

Ingredients:
- 1 tablespoon of coconut oil
- Juice of half a lemon

Instructions:
1. Start by melting the coconut oil if it's in a solid state. You can do this by placing the coconut oil jar in a bowl of warm water until it liquefies.
2. Squeeze the juice of half a lemon into a small bowl.
3. Add the melted coconut oil to the lemon juice and mix well.
4. Apply a small amount of the mixture to a patch of skin, preferably on your inner arm or behind your ear.
5. Leave the mixture on for about 15-20 minutes and then rinse it off with lukewarm water.
6. Observe the patch of skin for the next 24 hours. If you experience any redness, itching, or irritation, it's best to avoid using the mixture on your face or other sensitive areas.

Benefits:
- Coconut oil is known for its moisturizing properties. It contains fatty acids that can help hydrate and nourish the skin.
- Lemon juice contains natural acids, such as citric acid, which can act as a mild exfoliant. It may help brighten the skin and even out skin tone.

However, it's important to exercise caution when using lemon juice on the skin, as it can make your skin more sensitive to sunlight. If you decide to use this mixture, it's essential to apply sunscreen and avoid direct sun exposure for at least a few hours after application.

Remember, everyone's skin is unique, and what works for one person may not work for another. If you have any concerns or specific skin conditions, it's always a good idea to consult with a dermatologist before trying new recipes or ingredients on your skin.