The gelatin recipe is on this website. You buy the gelatin in the baking aisle at the grocery store next to the Jello.

Pedaheh's Hair Blog: Science-y Hair Blog Recipes
2C/ Coarse/ Normal porosity/ SW Florida/ Salt & Pepper
Cleanse: CJ Daily Fix, JC Cleansing Cream, TJ Tea Tree Condish
Condish: JC Too Shea, CJ Curl Rehab (both as RO & LI)
Stylers: UFD CM, CJ PP, JC Spiralicious, Darcy's Cream Gel & Cocoa bean whip