Here’s what I put in my coffee every day. Collagen works synergistically with silica and vitamin C so you should always take those together to get the full benefits! I like this collagen that I’m using, but I’m thinking of switching to the agent nateur (I used before and loved it, but just stopped using for a bit bc it’s pricey) because my friend said her hair grew like crazy since using it. Make sure your coffee is mold free! Coffee should not give you the jitters. LTKHome LTKBeauty LTKFamily