| Quartz (Rose) |
| Quassia |
| Quebracho (Aspidosperma) |
| Quercitin |
| Quercus Infectoria (Gallae Turcicae) |
| Quercus Rob |
| Quercus Spirit Gland (Spir Quer Gl) |
| Quillaiae Sap (Saponaria Off) |
| Quinidine |
| Quinoline Yellow (E104) |
| |
| Rabbit Fur |
| Rabbit Fur/Guinea Pig Fur |
| Rabbit Nosodes - specialist use only |
| Raccoon Fur (Procyon lotor) |
| Radium Brom |
| Radium Iod |
| Radium Sulph |
| Radon |
| Rafflesia Keithii |
| Ragweed (Ambrosia) |
| Rain Water |
| Rainbow (colour spectrum) |
| Rajania Sub |
| Ramphastos Toco (Toucan) |
| Rangifer Tarandus (Reindeer, Caribou) |
| Ranunculus Acris |
| Ranunculus Bulb |
| Ranunculus Flamm |
| Ranunculus Glac |
| Ranunculus Repens |
| Ranunculus Scler |
| Rape Seed Oil (Brassica Napus Oleifera) |
| Raphanus Sativa Niger |
| Raspberry Leaf (Rubus Ideus) |
| Rat (Rattus Rattus) |
| Rat Blood (Sanguis Soricis) |
| Ratanhia (Kramaria) |
| Rattus Rattus (Rat) |
| Rauwolfia Serp |
| Raven (Corvus Corax) |
| Red 2G (E128) |
| Red Admiral Butterfly (Vanessa Atalanta) |
| Red Spider |
| Red Squirrel (Sciurus Vulgaris) |
| Red Tailed Hawk (Buteo Jam Rapt, Hawk Red Tailed) |
| Red Wine |
| Redwood Tree (Sequoia Giganteum) |
| Redwood Tree (Sequoia Sempervirens) |
| Reindeer (Caribou, Rangifer Tarandus) |
| Reindeer Moss (Cladonia Rangifer) |
| Rescue Remedy |
| Resin |
| Resveratrol |
| Reticulo-endothelial System |
| Rhamnus Calif |
| Rhamnus Pursh (Cascara) |