I've been using Primal Harvest for almost 2 years now. I even stopped for some time with the mistaken idea that my hair had just needed a boost from when I did a fast but it turns out my hair's health was in a perpetual decline and needed to be on constant life support by this supplement. This tells me it clearly packs all the essentials for hair health. I'm confident that Primal Harvest can be my one stop shop for other miraculous products as well!