Deep Conditioner Avocado oil has great moisturizing properties for smooth, silky hair. (Garnier Fructis flaunts the stuff). Make your own smoothing avocado conditioner from two ingredients, and say hello to more luscious hair! Ingredients: 2 cups mayonnaise 1/2 ripe avocado Directions: Mix avocado and mayo until smooth. Apply to hair, and put on a shower... cap or wrap hair in saran wrap. Let set 25 min and rinse