I've been trying to find an easy and not so messy D.I.Y conditioner for months and I finally have.
Ingredients
Castor Oil
Mayonnaise
Olive Oil
3 simple ingredients really work wonders. I first warm the olive oil in the microwave for 10-15 seconds, then add the mayo and castor oil. I got my castor oil at Kroger for less than $4 and it has lasted me months. Castor oil is great at promoting hair growth and that's why I added it to the mixture.
I spray my hair down with a water and jojoba oil mix I have in my water bottle. I don't soak my hair, I just get it damp. I then add the conditioner to all sections of my hair. Since I always have some leftover, I coat the ends of my hair in it. I leave it in my hair for 45 minutes to 2 hours depending on what I'm doing.
I have noticed a great change in my hair after using this once a week for a month. I love it!