Any product you find that says it works for dreads will work for starting dreadlocks.

Many products on the market that mention they work for dreadlocks are actually intended to add shine and fragrance and to make corn rows look neater but they don't acually help the dreading process at all. The majority of these shine waxes are made with petrolium as the primary ingredient. Petrolium is a lubricant and products that contain petrolium will feel greasy and cause your dreads to slip apart rather than holding them together. Petrolium products are better suited for African textured hair which has already been dreaded.