Here are homemade aloe vera replacements (I’ll add the quantity as replacement for the formulation): **Flaxseed gel - 20g **Okra gel - 20g For these gels, you simply have to boil for around 5min in water some seeds or okra cut into pieces and then strain to get the gel. Let the gel cool down before adding it to the rest of the formulation :). ---------- Otherwise you can also order the following ingredients online to replace aloe for its humectant properties: **Panthenol - 5g **glycerin - 10-15g These ingredients won't have the exact same properties as aloe vera but they will still give lots of benefits to your scalp and hair as part of a clean and gentle DIY shampoo.